SECURITRON MODEL EXD EXIT DELAY SYSTEMS INSTALLATION AND OPERATING INSTRUCTIONS 1. DESCRIPTION

PN# h 500-13350 Page 1 Rev. A.3, 7/03 SECURITRON MODEL EXD EXIT DELAY SYSTEMS INSTALLATION AND OPERATING INSTRUCTIONS 1. DESCRIPTION Securitron s EXD series is modular delayed exit locking systems intended for use on emergency exit doors. The systems fully meet American and Canadian building codes for delayed exit (Special Locking Arrangements). Configurations within the series are appropriate for fire rated and non-fire rated doors. Briefly, all EXD systems function as follows: The door's normal condition is secure from an electromagnetic lock. A person desiring to exit employs an exit bar or similar delay initiating device which starts an irreversible delay of 15 or 30 seconds. During this release delay period, a local Sonalert sounds and a remote alarm signal also activates. At the end of the delay, the local Sonalert stops and the lock releases. It remains released until manually reset (relocked). In some code versions, reset is accomplished by a momentary turn of a keyswitch mounted at the door. Other code versions mandate the use of a doorswitch so that reset is accomplished by the act of opening the door. See Section 4 for a detailed discussion of the different code requirements. The modular nature of the systems allows great flexibility in that the user can select individual components within the system structure. This permits creating a configuration that optimally suits Copyright, 2003, all rights reserved Securitron Magnalock Corp., 550 Vista Blvd., Sparks NV 89434, USA Tel: (775) 355-5625 (800) MAGLOCK Fax: (775) 355-5636 Website: www.securitron.com An ASSA ABLOY Group company

Rev. A.3, 7/03 Page- 2 the application requirements in the areas of finish, physical fit of mounted components, and permissible electronic function variations. EXD systems also support optional functions that can be employed in entry control, door/lock monitoring, and authorized immediate exit. External switches such as time clocks can also put the system into different modes if delayed exit is not desired at all times. Because of the inherent modular structure of the systems, an order for an EXD system must list the particular components selected. 2. SYSTEM COMPONENTS The following sections discuss the individual components which go to make up an EXD system under UL and ULC listings. 2.1 LOCKING DEVICE The full range of Securitron's model 62, 82, 32 and model SAM shear aligning series electromagnetic locks is available as part of an EXD system. The model 62 (1200 lbs.) or model 82 (1800 lbs.) is appropriate for applications requiring high physical security. The model 32 (600 lbs.) is for applications requiring "traffic control" security levels. The SAM is used when a fully concealed installation is desired or in specialty applications where the door must swing both ways. Selection is made first according to whether the door swings out or in (standard or "F" version). Note however that the SAM does not include a door swing direction variable. Adding SC to the part number adds lock status sensing with an SPDT output. If lock status sensing is selected, note that the logic timer component of any EXD system includes lock status monitoring. 2.2 DELAY INITIATING DEVICE 2.2.1. WHEN INTEGRATED WITH ACCESS CONTROL The initiate device opens a switch to electronically trigger the delay cycle. A broad selection of initiate devices are available for use with the EXD system. For installations that require integration with access control (such as a card reader or digital keypad), you will require an initiate device which opens a switch from an action which is performed from the inside of the door only, while maintaining free entry from the outside of the door when the Magnalock is released (after the delay). Available devices include Securitron's range of Touch Sense Bars (TSB-3 series). The Touch Sense Bar is available in two finishes (clear anodized and black anodized) and in 3 lengths to correspond to standard door opening widths (36", 42" and 48"). The Touch Sense Bar electronically detects skin proximity (even through clothing) and as such, suffers no wear with repeated use. It also has a redundant circuit backup switch which provides extra reliability in the event of any electronic failure. The Touch Sense Bar series is suitable however, for non fire rated doors as it includes no latch (the electromagnet alone secures the door.) A similar device is Securitron s Touch Sense Handle (TSH series). The Touch Sense Handle is electronically identical to the Touch Sense Bar and also comes in clear or black anodized finish. The handle can be employed to push a door open (normal use) or pull a door open in a specialty situation where the exit door doesn t open outwards (this use should be confirmed with your local

Rev. A.3, 7/03 Page- 3 fire or building inspector). Also, depending on the building occupancy type, an exit bar rather than exit handle may be required by code. Again consult your local building or fire department. Another specialty application mentioned earlier is when the SAM (shear aligning Magnalock is employed on a double acting door (which swings both ways). In this instance, the TSH is an interesting initiate device as it can conveniently propel the door in either direction. Both the Touch Sense Bar and Handle are intended for use on Non-fire rated doors (fire rated doors must be positively latched by fire rated latching hardware). For fire rated doors where electronic access is included in the system requirements, you should employ a switch equipped fire rated mechanical panic bar with free moving entry trim on the outside of the door. When the bar is depressed from the inside, the integral switch opens which initiates the release delay. At the same time, the latch is withdrawn which permits exit once the delay has expired. For entry, once the Magnalock has been released (by the card reader for example) the trim handle is turned from the outside which retracts the latch and permits non alarmed entry. Turning the trim handle from the outside however does not activate the initiate switch within the panic bar so delay cannot be initiated from the outside. Certain fire rated, switch equipped panic bars manufactured by firms other than Securitron have been tested as part of this system (consult current label data). These bars vary according to finish, length and latch type (rim, mortise, concealed or surface vertical rod). Fire rated switch equipped panic bars from still other manufacturers can be considered for use with the EXD system if the local authorities understand and accept that these bars have not been individually tested with the EXD system. While the above mentioned initiate devices can be integrated with electronic access control, they will, of course, work fine on installations that do not include access control. We also, however, offer other initiate devices that are typically more productive for egress control only installations. 2.2.2 INITIATE DEVICES FOR EGRESS CONTROL ONLY The principal advantage of the initiate devices discussed in this section is that existing latching door hardware (fire or non-fire rated) does not have to be removed. This results in considerable savings in installation costs. Note that the initiate devices discussed in this section require the presence of latching exit hardware. The first device is called the MXD which is available in different versions depending on the Magnalock series selected. The MXD is a kit which includes a housing that surrounds the magnet body and conceals a proximity switch array. Note: it is not compatible with the SAM shear aligning Magnalock. A permanent magnet array is also part of the kit and this mounts behind the strike plate so that a signal is generated when the door is partially opened (the distance between the permanent magnet array on the door and the proximity switch array within the magnet housing increases to a detection point). The door is allowed to open a distance of about one inch by the presence in the kit of a spring loaded sex bolt which has an internal plunger that telescopes out when an attempt is made to open the door. A person desiring to exit clears the latch by activating the exit hardware and then moves the door open approximately an inch at which point all the slack in the special sex bolt is taken up. This movement is detected an the initiate signal is provided.

Rev. A.3, 7/03 Page- 4 The SB-MXD (also not compatible with the SAM) operates the same way but the housing for the magnet body is eliminated as is the permanent magnet array behind the strike plate. Instead, the limited door movement permitted by the spring loaded sex bolt is detected by a furnished, separately mounted magnetic door switch. This permits a more compact installation but is less tamper proof. Finally, where the latching exit hardware is of the mortise type (rather than rim or vertical rod), Securitron s LM series of Latch Monitors may be used (assuming wires can be pulled up the door frame). The Latch Monitor mounts behind the strike of the mechanical exit hardware latch and detects when the latch is withdrawn by the exit hardware. Withdrawal of the latch initiates the delay. Compared to the MXD, the Latch Monitor is much less tamper resistant but yields a very compact and low cost installation. Note that electronic access control cannot be integrated with the initiate devices in this section because we can t allow the latch to be retracted from the outside to permit entry. If latch retraction from the outside was possible, the delay could be initiated from the outside for unauthorized entry and this defeats the purpose of the system. 2.3 LOGIC TIMER All logic and timing functions for the EXD system are performed by a special timer (Model XDT-12 or XDT-24) implemented on a circuit board. The board is supplied from Securitron in a locking surface mount enclosure which includes a Sonalert on its cover. The part number for the complete assembly (board enclosure) is BA-XDT-12 or BA-XDT-24. Alternately Securitron offers a flush mount enclosure (FA-XDT-12 or FA-XDT-24). The XDT timer is a powerful microprocessor device which not only performs the logic functions necessary to meet the different codes, but provides many optional features that enhance the security and safety aspects of the installation. See Section 7 for the details of optional functions. 2.4 RESET DEVICE Once the door has been released, it will remain in this state until "manually" reset. In the EXD system, this is accomplished by a normally closed switch opening. The switch is supplied as part of Securitron's MK series mortise keyswitch which is mounted at the door so that the door will be inspected by a responsible individual prior to reset. The MK requires the on site addition of a 1 1/4" or 1 1/8" mortise cylinder which activates the switch. Typically, the cylinder is furnished by a local locksmith and is keyed into the facility keying system. The standard MK is furnished on a single gang outlet box cover. The MKN version is furnished on a 1 3/4" plate for narrow style door frames. A red/green bicolor LED is included. Certain code versions require the use of a door switch to accomplish reset. You may select any door switch with minimum electrical ratings of 30 VDC and 250 ma as an alternate part of this system. 2.5 POWER SUPPLY The EXD systems must operate on 12 or 24 VDC power. Securitron supplies a range of power supplies (BPS series) to meet this requirement as part of the system. Selection of the power

Rev. A.3, 7/03 Page- 5 supply depends first on whether 12 or 24 volts is preferred for the installation. Next, the capacity of the power supply is selected according to how many doors are installed. Although individual supplies could be installed for each door, an EXD system according to code includes a central break from the fire alarm system so, since wires need to be run from a central point to each door anyway, it is most cost effective to use one power supply to operate all the doors. 12 Volt power supplies in the BPS series range from 1-15 Amps in output capacity. 24 Volt supplies range from 1-10 Amps. Battery backup may be supplied as an option (see Section 6.2.4). 3. DETAILED DELAYED EXIT FUTIONS Exact code requirements for delayed exit vary somewhat in different jurisdictions. These detailed variations will be addressed in Section 4. In general, however, delayed exit includes the following components and sequences of operation. In the normal condition, the door is locked. The initiate device is used to start the exit sequence. Once the initiate switch opens, a nuisance delay period begins. The nuisance delay period may be set for 1, 2 or 3 seconds. The duration of the nuisance delay period will depend on the local code and/or on the desires of the end user. The nuisance delay function can also be disabled. During the nuisance delay period, the XDT logic timer provides a pulsing relay output which is used to operate a local Sonalert. This notifies the person at the door that he has activated the initiate device. If he intends to exit, he must maintain pressure on the exit device until the end of the nuisance delay period. If he releases the bar before the nuisance delay times out, the local alarm signal will stop and the door will revert to normal (locked) mode. The sole purpose of the nuisance delay function is to deal with accidental triggering of the initiate device. It makes particular sense to employ the nuisance delay in buildings occupied by a changing population which will not be familiar with the exit control system. Retail stores or museums are good examples of such buildings. Once the nuisance delay times out (or immediately if no nuisance delay has been set) the release delay period begins. The XDT's local alarm output will go from pulsing to steady. This will alert the person at the door that he need no longer maintain pressure on the exit hardware. Once the release delay begins, it is irrevocable. The door will release at the end of the period. Code mandated duration of the release delay period is 15 seconds although certain jurisdictions allow extension to 30 seconds by local building or fire safety officials. The release delay period on the XDT can therefore be set for 15 or 30 seconds and this total release delay time includes the nuisance delay. For example, if a 2 second nuisance delay is set, the remaining release delay will automatically be 13 or 28 seconds for a total of 15 or 30 seconds. Once the door has released, it will remain released until manually relocked by a reset device. This is a normally closed switch which is momentarily activated (opened). Relocking actually occurs on reclosure of the switch. The reset device is Securitron's model MK, a momentary spring loaded keyswitch, or a door switch (where required). We recommend that the keyswitch be mounted at the door as this insures that security staff will actually inspect the door. In some jurisdictions the reset device may be a doorswitch. With a doorswitch, relocking occurs from the act of exiting the door. Certain codes require the use of a doorswitch or special timing sequences as will be discussed in Section 4. As mentioned earlier, the local alarm relay output incorporated on the board is necessary to meet the codes. This relay pulses during the nuisance delay period, energizes during the release delay period and is deenergized at all other times. For more powerful monitoring, the board includes a second alarm signal called the remote alarm relay. This relay is normally energized; it deenergizes to show an alarm condition. It signals alarm from the beginning of the release delay period until the door is relocked. The remote alarm relay is intended to signal to a security

Rev. A.3, 7/03 Page- 6 office that a security violation is occurring at the door. It ignores the nuisance delay period as this should be seen as a "false alarm" unless the delay becomes irrevocable. It also continues to signal until the door is relocked, correcting the security violation. The remote alarm relay should also be considered a general "trouble" signal. If the board loses power, this relay will deenergize signaling trouble. It is also used to signal other optional alarm conditions described in Section 7. The XDT logic timer is the heart of any EXD system. The following drawing is an overview of the timer's functions and is useful for reference as later parts of this manual discuss wiring and enabling optional functions. FIG. 1: XDT LOGIC TIMER OVERVIEW DELAY CONTROL TERMINAL RESET INPUT INITIATE INPUT DC RS IN C3 LOCK CONTROL RELAY RMALLY ENERGIZED FREE EGRESS INPUT BYPASS INPUT LOCK STATUS INPUT FE BP LS C2 REMOTE ALARM RELAY RMALLY ENERGIZED 0V (NEG) POWER V POWER TE: INPUTS OPERATE BY BEING CONNECTED TO V C1 DIPS LOCAL ALARM RELAY RMALLY DEENERGIZED 4. SPECIFIC CODE REQUIREMENTS We must strongly emphasize that the following sections on code requirements should not be considered definitive. They represent Securitron's best understanding of the individual codes at the time of this manual's most recent revision. Codes, however, can change suddenly and are also subject to local interpretations that may differ from the descriptions that follow. You should consider these descriptions as a starting point which should be confirmed or altered by the local authority having jurisdiction. Also, many customers are interested in the issue of UL testing for systems of this type. EXD systems are UL listed under the UL FWAX category which is also called Special Locking Arrangements. UL tests all systems applying for such a listing under a test standard which presently only recognizes the method of operation detailed in the NFPA 101 code for Special Locking Arrangements. This is a limitation of the UL test standards. In many parts of the United States, however, operational requirements as set by the authority having jurisdiction will vary in minor ways from the exact requirements of NFPA 101. The EXD system has been designed to be able to perform these alterations in operating sequence so that it can meet differing operating

Rev. A.3, 7/03 Page- 7 requirements as set by the different model codes. UL, however, has tested only operation under NFPA 101 and therefore takes no position on the ability of the EXD system to meet alternate code requirements. The EXD's ability to do this is warranteed by Securitron. In the following 5 sections, we describe individual code requirements in 4 areas: Nuisance delay, Release delay, Relocking and Power. The main issue in the Power function is whether battery backup can be applied to the locking system to keep the door functional in a power failure. 4.1 NFPA 101 (SPECIAL LOCKING ARRANGEMENTS) This code by the National Fire Protective Association was the first implementation of delayed exit. It formed the basis for the different model code versions which follow and is still used in many specifications. NUISAE DELAY: Permitted up to 3 seconds. RELEASE DELAY: 15 seconds or extension to 30 seconds with local approval. RELOCKING: Must be "manual". This is generally interpreted to mean that a doorswitch can not be used for relocking. A keyswitch is the typical technique used. POWER: The door must release when DC power to it is cut off. This means that battery backup of the system power supply may be acceptable, but this is a point to confirm with the local authority. 4.2 STANDARD BUILDING CODE NUISAE DELAY: Not allowed. RELEASE DELAY: 15 seconds or extension to 30 seconds with local approval. RELOCKING: Must occur only when the door opens. A doorswitch rather than a keyswitch must be used. POWER: The door must release when DC power to it is cut off. This means that battery backup of the system power supply may be acceptable, but this is a point to confirm with local authority. 4.3. UNIFORM BUILDING CODE NUISAE DELAY: Required and must be set at 2 seconds. RELEASE DELAY: 15 seconds only. RELOCKING: Must be "manual" and must be located at the door. This is generally interpreted to mean that a doorswitch can not be used for relocking. A keyswitch is the typical technique used. POWER: The door must release when power to it is cut off. The door must also release if power to the smoke detection system or exit illumination system is lost. This is generally accomplished by using the same line voltage source to operate the lock power supply as operates the smoke detection and exit illumination systems. Battery backup for the locks is normally excluded. 4.4 BOCA NUISAE DELAY: Required and must be set at 1 second. RELEASE DELAY: 15 seconds or extension to 30 seconds with local approval. RELOCKING: A doorswitch must be used and a special type of timed relocking is required. After the release delay expires, the lock releases. When the door is opened, the doorswitch changes state but nothing happens immediately (the lock remains released). When the door recloses, a

Rev. A.3, 7/03 Page- 8 "relock delay" of 30 seconds begins. If the door is not opened again during this 30 second period, it will relock. If it is opened again, the 30 second relock delay will begin again on door closure. The door will only relock when it has been left undisturbed for 30 seconds after reclosure. The local authority may extend the relock delay to 45 seconds for sensitive facilities. The standard XDT board supports the BOCA 30 second relock sequence. If the 45 second relock sequence is required, contact the factory to receive a modified board. POWER: The door must release when power to it or to the building is cut off. Battery backup of the lock power supply is therefore specifically excluded. 4.5 NATIONAL BUILDING CODE OF CANADA NUISAE DELAY: Not allowed. RELEASE DELAY: 15 seconds only RELOCKING: Must be "manual". This is generally interpreted to mean that a doorswitch can not be used for relocking. A keyswitch is the typical technique used. POWER: The door must release when power to it or to the building is cut off. Battery backup of the lock power supply is therefore specifically excluded. 5. DIP SWITCH SETTING Once you have determined the values to be set for nuisance delay, release delay and whether you want BOCA relocking used, dip switches on the XDT timer board may be set to select these parameters. The factory set condition of the board is nuisance delay disabled, 15 second release delay and standard (non BOCA) relocking. If you require a variation from this configuration, some Dip Switch settings will have to be altered. Switch 1: This sets the amount of time for release delay. In the factory set (Off) position, release delay is set for 15 seconds. Turning the switch On sets a 30 second release delay. Switch 2 and 3: The combined position of the 2 switches selects 4 different values for nuisance delay. DIP SWITCHES 15 SEC. RELEASE DELAY MATRIX (SEE TEXT) MATRIX (SEE TEXT) STANDARD RELOCKING 1 2 3 4 30 SEC. RELEASE DELAY MATRIX (SEE TEXT) MATRIX (SEE TEXT) BOCA RELOCKING MATRIX #1: Switch 2 Off; Switch 3 Off (factory set): nuisance delay disabled MATRIX #2: Switch 2 On; Switch 3 Off: 1 second nuisance delay MATRIX #3: Switch 2 Off; Switch 3 On: 2 second nuisance delay MATRIX #4: Switch 2 On; Switch 3 On: 3 second nuisance delay Switch 4: This implements BOCA timed relocking (see Section 4.4). In the factory set (Off) position, standard relocking from a momentary reset switch is implemented. When the switch is turned On, 30 second delayed BOCA relocking is set. Under some conditions, local authorities may require a 45 second delayed BOCA relocking. The standard XDT board does not support this. Contact the factory to order a modified board with the 45 second feature. OFF 0N FACTORY SETTINGS SHOWN IN

Rev. A.3, 7/03 Page- 9 FROM POWER SUPPLY V 0V (NEG) FIG. 2: TYPICAL WIRING, EXD SYSTEM WITH TOUCH SENSE BAR OR TOUCH SENSE HANDLE GREEN LED WHITE MK KEY- RED SWITCH RED RED WHT TSB-3 OR TSH GREEN RS IN FE BP LS XDT BOARD C3 C2 C1 IF DOORSWITCH REPLACES KEYSWITCH, IT MUST BE CLOSED WHEN DOOR IS CLOSED. RED MAGNALOCK REMOTE ALARM RELAY SONA- LERT FIG. 3: TYPICAL WIRING, EXD SYSTEM WITH MECHANICAL BAR, MXD, SB-MXD OR LATCH MONITOR GREEN LED WHITE MK KEY- RED SWITCH RED IF DOORSWITCH REPLACES KEYSWITCH, IT MUST BE CLOSED WHEN DOOR IS CLOSED. FROM POWER SUPPLY V 0V (NEG) COM INITI- ATE DEVICE RS IN FE BP LS XDT BOARD C3 C2 C1 RED MAGNALOCK REMOTE ALARM RELAY SONA- LERT

Rev. A.3, 7/03 Page- 10 6. INSTALLATION 6.1 PHYSICAL INSTALLATION The Magnalock and initiate device should be physically mounted on the door according to their individual instructions. If the MK keyswitch is used in this installation, its instructions explain mounting the user supplied mortise cylinder. The XDT timer is supplied in its own enclosure (Model BA-XDT or model FA-XDT), and will either surface mount above the door or flush mount next to the door. 6.2 WIRING 6.2.1 BASIC WIRING Please refer to Figure 2 which shows typical wiring for an EXD with a Touch Sense Bar or Touch Sense Handle or Figure 3 for an EXD system with switch equipped mechanical panic bar, MXD, SB-MXD or Latch Monitor. These drawings show interconnections of all system components except the power supply-fire alarm connections. Wired as shown, the systems fully meet the exit delay code requirements. Note that the only difference between the two drawings is that Figure 2 shows powered initiate devices which therefore require 2 more wires than unpowered switching initiate devices shown in Figure 3. Note that with respect to Figure 3, the two wires coming from the un-powered initiate device are labeled COM and. The circuit between these two wires opens when the initiate device is used. In the case of the MXD and SB-MXD, both devices have only two wires so confusion is impossible. Mechanical panic bar switches, however usually have three wires (SPDT) so make sure that you have identified COM and such that the circuit between these two wires opens when the bar is pressed. If you are using the Latch Monitor, as is noted in its separate instructions, COM is WHITE and is RED. The bicolor LED in the reset keyswitch is connected so that it is green in the "normal" locked condition. It illuminates red when the lock has been released following the exit delay. Therefore the LED "invites" the user to turn the key and reset the door. If the LED is not red, the user will know that turning the key will have no effect. Other connection schemes are possible for the LED as there are no code requirements for this sort of prompt. Naturally if a door switch is used, there is no LED supplied with the system. 6.2.2 DOUBLE DOOR WIRING A double door can be accommodated by using 2 Magnalocks and 2 initiate devices. Only a single timer and reset keyswitch are necessary. With this type of wiring, activating the device on either door releases the Magnalocks on both doors. The Magnalocks are connected in parallel (red to red; black to black). The initiate device switch contacts are connected in series. With the Touch Sense Bar or Touch Sense Handle, the connection is somewhat complicated as sensor power is connected in parallel but sensor contacts are connected in series. The small drawing to the right shows the detail of the connections. To complete the installation, follow Figure 2 for connection of the other components and, as explained above, connect the 2 Magnalocks in parallel. When one of the un-powered initiate devices shown in Figure 3 is used, the connection is simpler. V from the power supply V 0V (NEG) RED RED WHT TSB-3/ TSH #2 TSB-3/ TSH #1 GREEN WHT DC GREEN RS IN FE BP LS

Rev. A.3, 7/03 Page- 11 connects to COM of device #1. of device #1 connects to COM of device #2. of device #2 connects to terminal IN of the timer. 6.2.3 POWER SUPPLY CONNECTIONS Figure 4 shows power supply connections for Securitron's 1 Amp units and larger supplies. Either supply must first be connected to a source of 115 VAC. 2 wires then carry DC power to the timer (see figures 2 and 3). In the case of the larger, multiple output supplies, the number of doors powered should be spread among the "P" terminals. Medium sized supplies employ the CCS-4 control board with four P terminals and the largest supplies employ the CCS-8 control board with eight P terminals. Each P terminal conducts power through a 2.5 Amp Polyswitch. This is a special type of automatic fuse. If one of the Polyswitches receives an overload, it will rapidly cut the current down to a small leakage current (about 100 ma) which will allow the rest of the doors to continue to operate. Note that each P output includes a slide switch and LED. The slide switch can cut DC power to its respective output and the LED monitors when the output is powered. In the event of one of the Polyswitches tripping, the associated LED will go out and there is a reset procedure. First, correct the overload condition. Next, all current must be removed from the Polyswitch for a period of 10 seconds. You do this by simply moving the associated slide switch to the off position. Then, return the slide switch to on and operation will return to normal. If you haven t corrected the overload, naturally the Polyswitch will trip again but you must always de-power and re-power the Polyswitch to reset it. If your power supply includes a battery pack, the Polyswitch will always trip as described in the previous paragraph. If, however, you are not employing batteries and you are using a Securitron power supply larger than one Amp in capacity, a short circuit or overload may not trip an individual Polyswitch. This is because the power supply itself is internally short circuit protected for additional safety and the supply itself may completely shut down before the individual Polyswitch on the affected zone can trip. The issue of whether the power supply shuts itself off or an individual Polyswitch trips depends on the overload current. In the case of a dead short, the overload current is very high and the power supply will shut down first. An overload greater than 2.5 Amps but less than the total capacity of the supply will rather cause the zone Polyswitch to trip. The presence of a battery always trips the Polyswitch because the battery will supply high current into any short or overload once the power supply can no longer maintain its voltage. Its simple to determine whether an individual Polyswitch has tripped or whether the power supply has shut down by looking at the individual zone LED s. One will be off in the event of an individual Polyswitch trip and they will all be off in the event of power supply shut down. To recover from power supply shut down, you have to identify and correct the overload or short circuit. This should be done by turning off each zone slide switch until you find the one that restores normal operation of the supply by correcting the overload. You should then deal with the actual cause of the overload in the downstream wiring. Note that all Securitron BPS series power supplies have stand-up fuse holders. The 1 Amp units have an AC line voltage fuse only. This fuse will trip if the transformer primary shorts out as it fuses the incoming 115 VAC. Larger power supplies which employ the CCS-4 or CCS-8 control boards include an AC fuse (see figure 4) which also protects against a transformer primary short and a DC fuse. The DC fuse protects the full DC output of the supply prior to it being divided through the Polyswitches to the individual P outputs. The DC fuse should only trip if there is a short circuit in the supply itself (downstream short circuits or overloads will trip individual Polyswitches). This could occur if the F1-H terminal block somehow contacts DC negative. If the power supply appears dead (all LED s are out), the problems could be a blown fuse or the

Rev. A.3, 7/03 Page- 12 previously described supply shut-down. Always replace any blown fuse with the same rated fuse. FIG. 4: POWER SUPPLY AND FIRE ALARM CONNECTIONS 115 VAC INPUT CONNECTIONS FOR 1 AMP POWER SUPPLY GROUND NEUT HOT 1 2 3 CONNECTIONS FOR BPS-12-1 OR BPS-24-1 SUPPLIES TE FIRE ALARM CONNECTIONS BATTERY PACK (OPTIONAL) RED AC AC POWER SUPPLY F FIRE ALARM N.C. CONTACTS OPEN WHEN ALARM ACTIVE DC COMMON NEGATIVE (0 VOLT) V TO TIMER CONNECTIONS FOR POWER SUPPLY USING CCS-4 BOARD BATTERY PACK (OPTIONAL) RED B- B AC FUSE TERMINALS R1-R4 COMMON NEGATIVE DC RETURN (0 VOLT) TERMINALS P1-P4 SUPPLY V TO THE TIMER. EACH TERMINAL IS ON A SEPARATE POLYSWITCH WHICH IS APPROPRIATE FOR INSTALLATIONS WITH MULTIPLE TIMERS R1 R2 R3 R4 P1 P2 P3 P4 DC FUSE ON OFF H N G F1 FA F2 H HOT NEUT GRND 115 VAC INPUT FIRE ALARM N.C. CONTACTS OPEN WHEN ALARM ACTIVE SLIDE SWITCHES POWER AND DE-POWER EACH "P" OUTPUT. LED'S SHOW OUTPUT STATUS

Rev. A.3, 7/03 Page- 13 CONNECTIONS FOR POWER SUPPLY USING CCS-8 BOARD BATTERY PACK (OPTIONAL) TERMINALS R1-R8 COMMON NEGATIVE DC RETURN (0 VOLT) TERMINALS P1-P8 SUPPLY V TO THE TIMER. EACH TERMINAL IS ON A SEPARATE POLYSWITCH WHICH IS APPROPRIATE FOR INSTALLATIONS WITH MULTIPLE TIMERS RED B- R1 R2 R3 R4 R5 R6 R7 R8 P1 P2 P3 P4 P5 B DC FUSE ON OFF AC FUSE H N G F1 FA F2 H HOT NEUT GRND 115 VAC INPUT FIRE ALARM N.C. CONTACTS OPEN WHEN ALARM ACTIVE P6 P7 P8 SLIDE SWITCHES POWER AND DE-POWER EACH "P" OUTPUT. LED'S SHOW OUTPUT STATUS Terminal FA is a free parking terminal used only with Securitron s Power Supply Monitor. If you are using this product, wiring with the FA terminal is shown in the PSM manual. The H terminal carries V with the full output of the power supply. It is used for specialty applications where the full output must be directly connected to a large load. EXD systems always operate off the P terminals so the H terminal is never used. Interconnection between the fire alarm system and the power supply is a vital part of the exit delay system function. In a fire, all doors must release immediately. The EXD systems accomplish this by mandating a connection with the fire alarm that cuts off all DC power to the doors. This is the simplest and most sure way to accomplish the function. A UL listed fire alarm system must be used with latching type dry contacts designed for "auxiliary" operation. Alarm or trouble contacts may not be used. The contacts must be of sufficient capacity to switch the total DC current output of the EXD power supply selected. Figure 4 clearly shows the interconnection for the three EXD power supply types.

Rev. A.3, 7/03 Page- 14 6.2.4 BATTERY BACKUP All EXD system power supplies (BPS series) are capable of charging batteries and therefore continuing operation if local AC power fails. Certain code versions permit use of battery backup and certain ones forbid it. See Section 4 for the details. We also recommend that if battery backup is desired, its acceptance be confirmed with the local approving authority. FIG. 5: CHART FOR SELECTION OF BATTERY PACK SIZE BACKUP TIME DESIRED TOTAL CURRENT DRAWN 150 MA 300 MA 500 MA 1 A 2 A 3 A 4 A 5 A 7.5 A 10 A MIN 1 HR 2 HR 4 HR UL STD. 8 HR 16 HR 24 HR 48 HR 72 HR 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 8 AH 8 AH 12 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 8 AH 12 AH 16 AH 24 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 4 AH 8 AH 16 AH 4 AH 8 AH 12 AH 20 AH 8 AH 12 AH 16 AH 24 AH 8 AH 16 AH 20 AH 32 AH 12 AH 16 AH 24 AH 40 AH 16 AH 20 AH 36 AH 60 AH 20 AH 28 AH 48 AH 72 AH 8 AH 12 AH 20 AH 28 AH 36 AH 44 AH 72 AH 100AH 12 AH 20 AH 36 AH 52 AH 72 AH 84 AH 130AH 180AH 16 AH 24 AH 48 AH 72 AH 100AH 120AH 180AH 240AH 24 AH 48 AH 100AH 150AH 200AH 240AH 360AH 480AH 36 AH 72 AH 150AH 240AH 300AH 360AH 480AH 720AH "MIN" TIME REFERS TO FACILITY USING EMERGEY GENERATOR WHERE THE BATTERIES ARE ONLY REQUIRED TO OPERATE THE SYSTEM FOR A FEW MINUTES UNTIL THE GENERATOR TAKES OVER U.L. STANDARD REQUIRES 4 HOURS OF BATTERY OPERATION FOLLOWED BY A 24 HOUR RECHARGE PERIOD AND THEN A SECOND 4 HOURS OF OPERATION STANDARD SECURITRON POWER SUPPLIES CAN ONLY CHARGE UP TO A 20AH PACK. IF A LARGER PACK IS CALLED FOR, THE FACTORY MUST BE ALLERTED TO SUPPLY MODIFIED EQUIPMENT. LARGER PACKS ARE SHOWN IN ITALICS IN THE CHART. FULL RECHARGE FROM A FULLY DEPLETED BATTERY PACK REQUIRES 32 HOURS FOR EACH 4 AH OF BACKUP UP TO 20 AH. FOR LARGER PACKS, THE FACTORY CAN QUOTE THE RECHARGE TIME. BATTERIES MUST BE SEALED LEAD ACID OR GEL CELL TYPES. DRY CELLS WILL T RECHARGE AND WILL BE DAMAGED. THIS CHART IS ONLY VALID IF BATTERIES ARE OPERATED AT ROOM TEMPERATURE. IN A COLD ENVIRONMENT, CAPACITY IS REDUCED. BATTERIES SHOULD BE REPLACED AFTER 5 YEARS OF USE. To implement battery backup, it is necessary for the installer to correctly determine the proper size for the battery pack which varies with the current drawn by the complete load and the backup

Rev. A.3, 7/03 Page- 15 time desired. The power supply must also be able to charge the pack. All BPS series power supplies provide a current limited charging circuit. The reason that the charge current is limited is that otherwise a recharging battery after a power failure would take current away from the locks which must also operate during battery recharging. Charge current on standard supplies is limited to 250 ma and this amount of current is capable of charging up to a 20 Amp Hour battery pack. If a larger pack is needed, Securitron can supply a modified power supply with a larger maximum charge current. Naturally, the greater charge current means that the supply loses load operating capacity. For example, a standard supply rated at a maximum total output current of 3 Amps can only supply a maximum of 2.75 Amps to the load as 250 ma is reserved for battery recharging (up to 20 Amp Hours). If the supply is modified to provide a 1 Amp charge current, which allows an 80 Amp Hour battery pack, only 2 Amps remain to be allotted to the load. Figure 5 is a chart which allows calculation of the correct size battery pack to provide a range of backup times in concert with a range of possible total system load currents. Selection of backup time will depend on the history of power outages in the area and on the level of security required for the facility. The information in the chart is valid for 12 or 24 volts although, naturally, the battery voltage must match the power supply voltage. As a rough guide, consider a single door EXD system to draw 200 ma at 24 VDC and 400 ma at 12 VDC. For multiple door systems, the total current must either be calculated or measured with an ammeter. Be sure to carefully read all of the notes at the bottom of Figure 5. 6.2.5 HIGH ENERGY HAZARD It is often assumed that electrical installations running on low voltage are inherently safe. Low voltage installations do not pose an electric shock hazard but can pose a high energy hazard based on the amount of current that may be supplied into a short circuit. An individual might receive a burn from an arc or, in an extreme case, a fire might be started. The BPS series power supply that operates your EXD installation may or may not include a backup battery pack depending on local regulation and on the end user s requirements. The addition of batteries increases the high energy hazard as the battery pack is able to supply very high current into a short circuit (much higher than the maximum output of any BPS series supply). So long as your EXD installation is correctly wired according to Figure 4, however, the Polyswitches will protect against this type of hazard. For your safety, insure that they are not bypassed. 6.3 POWER FAILURE AND POWER DROP CONSIDERATIONS A related power issue is a description of how the system behaves upon loss of power or reduction of the input voltage. It is always intended that the XDT logic timer is permanently powered except in the event that the fire alarm system removes all power from the delayed exit locking system. In the "normal" condition, the timer lock control relay (C3) and the remote alarm relay (C2) are energized. The local alarm relay (C1) is deenergized. In this condition, the Magnalock is powered (secure) and no alarms are being signaled. If the timer loses power from a broken wire for instance, the lock control relay will deenergize releasing the Magnalock. This is a safety feature. The remote alarm relay will also deenergize which will signal trouble at the door. This is a security feature. The local alarm relay will remain deenergized and therefore not signal at the door as the local alarm relay is intended to signal a delayed exit event and without power, the board is not capable of producing such an event; the Magnalock is immediately released upon loss of board power. If the system has been approved for the use of battery backup, loss of building power will not immediately alter anything at the door as the batteries will take over. If power is out for an

Rev. A.3, 7/03 Page- 16 extended period of time, however, the batteries will begin to drain and lose voltage. As an additional safety feature, the XDT timer includes a low voltage sensing circuit. The board will keep working normally as the voltage declines until it reaches roughly 70% of nominal. At that point, the XDT will automatically act as if all power was removed. The Magnalock releases and the remote alarm relay deenergizes, signaling trouble at the door. 7. OPTIONAL FUTIONS The following optional functions are not necessary to meet delayed exit safety codes but may be implemented as desired to increase the utility of the EXD system application. All of the optional functions are enabled by altering the wiring of the XDT logic timer board, so the following Sections all focus on the XDT. FIG. 6: LOCK STATUS REPORTING WIRING TO UTILIZE LOCK STATUS MONITORING, REMOVE THE JUMPER FROM "" TO LS, TIE THE MAGNALOCK WHITE WIRE TO THE RED WIRE AND CONNECT THE GREEN WIRE TO TERMINAL "LS". ALTERNATELY, A DOORSWITCH CAN INPUT V TO LS WHEN THE DOOR IS CLOSED RED WHITE "SC" TYPE MAGNALOCK GREEN DC RS IN FE BP LS 7.1 LOCK STATUS REPORTING The LS input is for optional lock (or door) status reporting. Note that when the XDT board is delivered, the LS terminal is jumpered to the "" terminal. In this mode, the board interprets the lock as being secure so no reporting occurs, and the board can be used for normal delayed exit. To implement lock status reporting, an SC version Senstat Magnalock should be employed. Tie the red and white wires together (this puts V on the SPDT Senstat common wire). The green wire will then report V to the LS terminal when the lock is secure. If the Magnalock stops reporting secure when it has not been released by the board, the remote alarm relay will switch 5 seconds later and remain switched until LS again receives V. The purpose for the 5 second delay is to allow a door to reclose and again report secure after legitimate use. If any function of the XDT board has released the door, the LS input will be ignored until the board has relocked the door. This feature allows use of the XDT board to perform exit delay and yet also report on propped doors or forced doors. If a standard (non-senstat) Magnalock is being used in the installation, a door switch may be employed to largely replicate this function. The switch should be closed when the door is closed and it should input V to terminal LS.

Rev. A.3, 7/03 Page- 17 7.2 USE OF EXTERNAL SWITCH (BYPASS FUTION) In many installations, authorized entry or exit is desired on an immediate basis without giving rise to an alarm. This does not violate the delayed exit code, as when the door is in a released state, it is completely safe. There are two possible variations of external switch use: momentary timed and alternate. "Momentary timed" means release of the door for a few seconds to allow an authorized person to enter or exit. Alternate means releasing the door for an extended period of time. The most common example of this is a situation where the door is released during working hours and put into delayed exit mode at night and during the weekends. Turning first to momentary timed release, EXT. SWITCH this is often from an SPDT relay operated from a controlled entry device such as a card reader. Often a keyswitch is used for C authorized entry or exit. Securitron's model DC MK keyswitch can be delivered with 2 switches so that when the key is turned in RS one direction, authorized release of the IN RED C3 door is obtained. The other direction is used for relocking after a delayed exit FE MAGNALOCK event. The contacts of the external BP switch are employed to cut power to the Magnalock and the contact connects to LS C2 terminal BP. The wiring method is illustrated in the drawing to the right. The BP terminal stands for "Bypass" and it C1 is important to understand the use of this terminal in all external switch applications. When BP receives V, it immediately releases the lock by deenergizing the lock control relay. It also suppresses initiation of delayed exit and all board alarm signals including the remote alarm relay signal that arises from lock status sensing (see the previous Section). This is important as during authorized entry or egress, it is undesirable to create delayed exit events or alarm signals. When V is removed from BP, it maintains the lock release condition and alarm suppression for 5 seconds. If the external switch is momentary spring loaded, this 5 second delay arising from the use of terminal BP gives sufficient time to enter or exit. If it is a timed control relay, the time should be set for 5 seconds less than the desired time. Once the timed control relay switches back, removal of power from BP will keep the lock released for an additional 5 seconds. If the external switch has only contacts, the same function may be gained by switching V into BP. The reason that the drawing shows an SPDT switch breaking power to the Magnalock and triggering BP is that this enhances reliability. If a fault were to occur with the XDT board such that the BP input didn't function, the contacts would still release the Magnalock. For alternate operation, a time clock is used to release the door and suppress all alarms during the day and then put the door into delayed exit mode at night. The time clock switch simply closes BP to V for the time period during which the door is to be released. When it switches again to open the connection between BP and V, the door will remain released for an additional 5 seconds but this will be hardly noticeable.

Rev. A.3, 7/03 Page- 18 7.3 FREE EGRESS FUTION The free egress function puts the XDT logic timer in a different operating mode. When V is switched to terminal FE by an alternate action switch, the board goes into free egress mode. In this mode, use of the exit bar, immediately releases the door for egress. When the bar is released, the door immediately relocks. Often, a time clock such as Securitron's model DT-7 is used to put the door into free egress mode during the day and exit delay mode at night. The free egress mode differs from the bypass mode as follows: When the door is bypassed, the Magnalock is released so that both entry and exit is freely possible. Also, during bypass mode, the board's alarm signaling functions are suppressed. In the free egress mode, the Magnalock remains secure so that entry is blocked, but egress without alarm signaling occurs immediately when the initiate device is pressed. If lock status monitoring is in use, the remote alarm relay will still report a door that doesn't resecure within 5 seconds after a free egress event. WHEN V IS SWITCHED TO "FE", THE BOARD IS IN FREE EGRESS MODE. THE INITIATE SWITCH IMMEDIATELY RELEASES THE LOCK WITH ALARM, EXCEPT OPTIONALLY FROM THE LOCK STATUS MONITORING FUTION. 7.5 LOCK POWERED AFTER RELEASE DELAY MODE (DELAY CONTROL) In ordinary delayed exit, the fail safe lock releases after the delay and remains released until the reset switch performs relocking. In facilities where a threat exists from the outside, the question arises as to security against unauthorized entry after the release delay has expired. It may be that the delayed exit cycle was initiated by mistake or as an act of vandalism. It may take some time for a guard to arrive at the door to effect relocking and there is always some risk that security procedures will fail, despite the alarm signals, and the door will be left in this released state for an extended period of time. If a latch equipped panic bar is present on the door, some security will still exist against unauthorized entry. However, many doors will employ a non latch equipped initiate device such as Securitron's Touch Sense Bar. Also, any door which combines delayed exit with controlled entry (such as from a card reader) must depend only on the fail safe lock for entry security. The XDT can be set so that after the release delay expires, the fail safe lock remains engaged so long as the initiate device is not being pressed. When the initiate device is DC pressed, the lock immediately releases but resecures after the initiate device is no longer RS being pressed. This preserves security from the outside. To implement this, simply run IN a wire from terminal DC to terminal IN. This is the only use for terminal DC. We believe that this method of operation meets the intent of all exit delay codes but it is certainly possible that conservative safety officials might reject it, so we advise that specific approval be sought for this variation. IN FE BP LS

Rev. A.3, 7/03 Page- 19 MAGNACARE LIMITED LIFETIME WARRANTY SECURITRON MAGNALOCK CORPORATION warrants that it will replace at customer s request, at any time for any reason, products manufactured and branded by SECURITRON. SECURITRON will use its best efforts to ship a replacement product by next day air freight at no cost to the customer within 24 hours of SECURITRON s receipt of the product from customer. If the customer has an account with SECURITRON or a valid credit card, the customer may order an advance replacement product, whereby SECURITRON will charge the customer s account for the price of the product plus next day air freight, and will credit back to the customer the full amount of the charge, including outbound freight, upon SECURITRON s receipt of the original product from the customer. SECURITRON s sole and exclusive liability, and customer s sole remedy, is limited to the replacement of the SECURITRON product when delivered to SECURITRON s facility (freight and insurance charges prepaid by customer). The replacement, at SECURITRON s sole option, may be the identical item or a newer unit which serves as a functional replacement. In the event that the product type has become obsolete in SECURITRON s product line, this MAGNACARE warranty will not apply. This MAGNACARE warranty also does not apply to custom, built to order, or non-catalog items, items made by others (such as batteries), returns for payment, distributor stock reductions, returns seeking replacement with anything other than the identical product, or products installed outside of the United States or Canada. This MAGNACARE warranty also does not apply to removal or installation costs. SECURITRON will not be liable to the purchaser, the customer or anyone else for incidental or consequential damages arising from any defect in, or malfunction of, its products. SECURITRON does not assume any responsibility for damage or injury to person or property due to improper care, storage, handling, abuse, misuse, or an act of God. EXCEPT AS STATED ABOVE, SECURITRON MAKES WARRANTIES, EITHER EXPRESS OR IMPLIED, AS TO ANY MATTER WHATSOEVER, ILUDING WITHOUT LIMITATION THE CONDITION OF ITS PRODUCTS, THEIR MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.