User guide Fire brigade communication system EN 81-72

Transcription

1 User guide Fire brigade communication system EN SCHAEFER GmbH Winterlinger Straße Sigmaringen Germany Telephone Fax info@ws-schaefer.de

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3 SCHAEFER GmbH Winterlinger Straße Sigmaringen Germany Telephone Fax info@ws-schaefer.de Support Please contact us for questions regarding this product: Telephone Fax info@ws-schaefer.de Copyright This document may only be reproduced (copy, print, microfilm or other by other means) or electronically distributed with express written consent from SCHAEFER GmbH. SCHAEFER GmbH reserves the right to update technical data without prior notice. General terms and conditions are applicable. All rights reserved. Ress Revision:

4 1. Overview General description Description of the fire brigade communication system Wire designations Wire pair designation Machine room lift trigger 8 2. Components Hand-held device (handset) Terminal designations on the (handset) Intercom station (freecom) Terminal designations on the (freecom) Intercom station (firecom) Terminal designations on the (firecom) Installation Wiring Network range Network topology EMC protection Shield connection Block diagram of a fire brigade communication system Power supply Emergency power supply unit and mains power Emergency power supply unit only Power supply via UPS Splash-water protection Initial operation Assigning addesses to the components Setting DIP switches Address settings for the fire brigade communication system Call key response time Adjusting the volume System settings Invoking setup mode Language Assigning addresses Setting the duration of voice connections Automatic clearing of incoming call notifications 23 SCHAEFER GmbH Fire brigade communication system EN

5 4.3 User settings Invoking the settings menu Adjusting the contrast of the display Switching off the buzzer Broadcasts Operation Hand-held device (handset) Calling an intercom station (F) Terminating/prolonging voice connections Switching between intercom stations Answering paging signals Fire brigade communication Switching between intercom stations in fire brigade mode Paging signals in fire brigade mode Mute function Energy-saving mode Intercom station (freecom) Paging key Signalling Energy-saving mode Communication Fire brigade key switch Force key Signalling Energy-saving mode Communication Terminal connection diagram Star topology Line topology Technical data General Hand-held device (handset) Intercom station (freecom)/(firecom) Power consumption in fire brigade mode 35 SCHAEFER GmbH Fire brigade communication system EN

6 1. Overview 1.1 General description The EN fire brigade communication system is modular in design. It consists of three different components: a) HAS_20 handset b) FRC_20 freecom c) FIC_20 firecom These can be combined as required in the system. The handset component is a hand-held device, which is intended for use in the machine room or for the porter. The freecom is an intercom station, which is to be installed in the cabin of the fireman's lift. The firecom is also an intercom station, which is to be installed on the fire brigade access level. By combining these three components, a fire brigade communication system can be set up and operated in accordance with the EN standard. The fire brigade communication system can be used in normal mode, or in fire brigade mode. A hand-held device controls the internal switching functions and thus serves as a control unit. In contrast to the other hand-held devices (extensions), the control unit has special functions such as broadcasting and control over establishing and terminating connections. The system is wired using a five-wire cable, onto which all subscribers are connected in parallel. In addition to power supply and voice signals, this connection is also used to transmit all logical states such as establishing or terminating connections, paging, signalling, key inputs, etc. Each hand-held device is equipped with a display and keypad, and can call all other subscribers in the system and accept incoming paging signals and calls. When a call or paging signal is answered, a voice connection is established. Additional voice connections are not possible, but other incoming paging signals and calls are stored in the system until they are processed. Paging signals from intercom stations are indicated visually and audibly on all assigned hand-held devices. The assignment of intercom stations to the hand-held devices can be set when the system is put into service. In order to test the functionality of all susbscribers, a broadcast can be made from the control unit whereby each component is called and a reply is waited for. If no answer is received, a message indicating the faulty component appears in the display. In addition to the functionality of the components, the installation (e.g. connection between components) is also tested. SCHAEFER GmbH Fire brigade communication system EN

7 1.2 Description of the fire brigade communication system A communication system for the fire brigade enables interactive 2-way communication during phases 1 and 2 between the cabin of the fireman's lift, the fire brigade access level and the control room for the fireman's lift. This voice connection takes precedence over others and is established via activation of the fire brigade key switch on the fire brigade access level. A fire brigade communication system consists of three components: A handset in the machine room, which is programmed as a control unit, a freecom in the cabin of the fireman's lift and a firecom on the fire brigade access level. It is important to note that all of these components must be located in a fire-resistant area, e.g. no installed components may be connected outside the fire-resistant area. In addition, the cables between the components must also be installed in a fire-resistant area. Cables installed outside of fire-resistant areas may be destroyed by fire or extreme heat, and could prevent the fire brigade communication system from functioning properly. An overriding voice connection to the cabin is established via activation of the fire brigade key switch on the fire brigade access level. Any existing connection will be interrupted immediately. The voice connection triggers a visual indicator on the intercoms of all subscribers and on the control unit as well. The intercom stations engaged in the voice connection are clearly indicated in the handset display. The handset operator in the machine room (control unit) has the authority to interrupt the voice connection between the firecom and freecom at any time in order to establish a new connection between the machine room and the cabin or between the machine room and the fire brigade access level. The connection status can be indicated on the touch pad on fire brigade access level and on the touch pad in the cabin via an optional lamp attachment. The new voice connection can be interrupted at the control unit by pressing the star key. An overriding voice connection can also be established from the fire brigade access level to the cabin by pressing the force key. After a preset period of seconds, this connection will be interrupted as well (see section 4.2.4, page 17). The preset voice connection time can be extended if necessary by pressing the hash key. If the voice connection is terminated or if the preset time elapses, the control unit reestablishes the voice connection between control unit and fire brigade intercom and cabin (as long as the fire brigade key switch is still activated). There are instructions for setting the preset voice connection time in the system manual. The handset microphone (control unit) can only be activated by pressing the key when in fire brigade mode (EN 81-72). The status of voice connections can only be signalled on the freecom and firecom via a lamp attachment (see sections and 5.3.3, "Signalling"). SCHAEFER GmbH Fire brigade communication system EN

8 1.3 Wire designations The five wires are designated as follows: HIGH, LOW, UB, GND and LINE. These are used to connect the hand-held device (for connection refer to section 2.1) and the intercom stations (for connection refer to sections 2.2 and 2.3) in parallel. It is absolutely imperative that a pair of wires is used to send and receive signals from data lines (CAN bus) Wire pair designation 1. wire pair +UB / GND 2. wire pair CAN_L / CAN_H 3. wire pair LINE / GND (optional) For longer cable runs, it is better to use a GND wire with a larger cross section. This can be done by using two wires in parallel. 1.4 Machine room lift trigger The EN fire brigade communication system can only be used for fireman's lifts which have a machine room (see DIN EN 81-72:2003(D), section b, issued November 2003). Marking The delivered version of the concerning component consists of the version abbreviation and the version No., e. g. HAS10 article No Version abbreviation and Version No. 20 Article No. Order No./Sheet No./Device No. The identification of the component is made by the following entries on the label: Order No., Sheet No. and device No. Note: The identification label is subject to change without notice. SCHAEFER GmbH Fire brigade communication system EN

9 2. Components 2.1 Hand-held device (handset) The handset consists of a hand-held device, a wall bracket and a flexible connection cable. All of the connection terminals for the hand-held device can be found inside the wall bracket (see section 2.1.1). The handset is used as a hand-held device in the machine room for the fireman's lift, as an extension device in another machine room or as a hand-held device for the porter (please observe the instructions under "Installation" in chapter 3). The display, LED and keypad are located on the outside. The speaker and microphone are located on the inside. The hand-held device was designed without a cradle switch so that it can be left in the wall bracket when dialling. In order to communicate, the hand-held device must be picked up. The flexible connection cable can be stretched out to a length of approx. 2.5 m. If it is stretched out any further, the plug connections on the wall bracket and hand-held device may be damaged. Outside Inside Fig. 2.1 handset SCHAEFER GmbH Fire brigade communication system EN

10 2.1.1 Terminal designations on the (handset) The wall bracket console consists of a stainless steel plate, a board assembly and a cover on which the cradle hooks for the hand-held device are located. To mount it on a wall, the steel mounting plate is fastened to the wall. The hole dimensions are provided in section 7.2. The connection terminals for the handset are located inside the console. The cover can be removed by lifting out the hand-held device and loosening both of the screws. The 10-pin connection terminal has designations for the wires of various system components. There are two screw terminals for each signal. For fire brigade communication systems, the power supply must be fed in through the handset which is installed in the machine room for the fireman's lift. The "GND" and "24 V DC" terminals located on the board in the console have been provided for this purpose (see section 2.2.2). For this device, jumpers JPR1 and JPR2 in the console need to be set. In order to minimise voltage drop caused by resistance in the wires, this hand-held device should be located close to the centre of the cable network. Alternatively, the diameter of the GND wire can be enlarged throughout the entire system. Figure Wall bracket console (board) (With cover installed) SCHAEFER GmbH Fire brigade communication system EN

11 2.2 Intercom station (freecom) The intercom station enables interactive 2-way communication. The intercom station has to be installed behind the front of the control panel in the cabin or in the cabin ceiling at a distance of no more than 0.8 m from the lift operator. A waterproof model is used for installation in the fireman's lift in accordance with EN The openings for the speaker and the microphone may not be covered by a solid material such as sheet metal, etc. The volume should be adjusted by the installer to suit the particular situation. Key features of the freecom intercom station: a) Electrically conductive plastic housing (ESD) b) 11-pin terminal block for connecting wires with a diameter of up to 1 mm² c) Volume control d) DIP switch for setting the address e) Microphone and speaker f) Splash-water protection and penetration protection The freecom is delivered with a yellow device seal, approx. 22 x 16 mm. An identification label is on the back side, indicating the device name and version, article No. as well as order related data (order/sheet/device). Figure Freecom intercom station (front) Figure Freecom intercom station (back) Note: The supplied version can deviate (colour and terminal location) from the illustration. Note: The supplied version can deviate (colour and terminal location) from the illustration. SCHAEFER GmbH Fire brigade communication system EN

12 2.2.1 Terminal designations on the (freecom) The freecom has the following connections: Terminal s Kl 1 Kl 2 Kl 3 Kl 4 Kl 5 Kl 6 Kl 7 Kl 8 Kl 9 Kl 10 Kl 11 Signal Paging reset indicator (H1) Voice connection indicator (H2) Call key (T1) LINE GND UB LOW HIGH Reserved Reserved Reserved Figure Freecom terminals Table Freecom terminal assignment The call key (T1) and lamp attachments (H1 and H2) should be connected according to figure If an additional notification signal with a different potential is required, a key with separate switching contacts should be used. The UB potential for key and lamp attachments does not have to be connected to terminals 3/6. For the UB supply wire, it is advisable to install a distribution terminal in close proximity to the intercom station, keypad or lamp attachments. If the lamp attachments are to be powered by an operating voltage different from that of the UB, they can also be fed from an auxiliary power source. In this case, the reference potential of the freecom (GND) and that of the auxiliary power source must be connected. The connections for the lamp attachments are designed as open collectors (npn max. 30 V / 50 ma). SCHAEFER GmbH Fire brigade communication system EN

13 2.3 Intercom station (firecom) The intercom station enables interactive Two-way communication. The intercom station has to be installed behind the front of a fire brigade control panel on the fire brigade access level. A waterproof model is used for installation in accordance with EN The openings for the speaker and the microphone may not be covered by a solid material such as sheet metal, etc. The volume should be adjusted by the installer to suit the particular situation. Key features of the firecom intercom station: a) Electrically conductive plastic housing (ESD) b) 11-pin terminal block for connecting wires with a diameter of up to 1 mm² c) Volume control d) DIP switch for setting the address e) Microphone and speaker f) Splash-water protection and penetration protection The firecom is delivered with a red device seal, approx. 22 x 16 mm. An identification label is on the back side, indicating the device name and version, article No. as well as order related data (order/sheet/device). Figure Firecom intercom station (front) Figure Firecom intercom station (back) Note: The supplied version can deviate (colour and terminal location) from the illustration. Note: The supplied version can deviate (colour and terminal location) from the illustration. SCHAEFER GmbH Fire brigade communication system EN

14 2.3.1 Terminal designations on the (firecom) The firecom has the following connections: Terminal s Kl 1 Kl 2 Kl 3 Kl 4 Kl 5 Kl 6 Kl 7 Kl 8 Kl 9 Kl 10 Kl 11 Signal Signalling indicator (H1) Voice connection indicator (H2) Force key (T1) LINE GND UB LOW HIGH Fire brigade key switch (S2) Reserved Reserved Figure Firecom terminals Table Firecom terminal assignment The force key (T1) and the lamp attachments (H1 and H2) should be connected according to figure The UB potential for keypad, fire brigade key switch and lamp attachments does not necessarily have to be connected to terminals 3/6. For the UB supply wire, it is advisable to install a distribution terminal in close proximity to the intercom station, keypad or lamp attachments. When connecting lamps with different voltages, please use the same options given for the freecom. The input on terminal (KI 3/9) is provided for the connection of a fire brigade key switch (S2). When supply voltage is applied, the fire brigade communication system is switched to fire brigade mode at the fire brigade key switch via terminal (KI 3/9) and a voice connection between the cabin, fire brigade access level and machine room is established. For this purpose, the cabin intercom station address has to be set to F1. The fire brigade key switch has to be configured in accordance with the requirements of the control system manufacturer and in compliance with EN directives. SCHAEFER GmbH Fire brigade communication system EN

15 3. Installation 3.1 Wiring All system components are connected in parallel on one wire. Most of these connections require the use of a five strand cable. Shielded, twisted pair wires (STP) should always be used. If standard telephone cable is to be used, it is important to observe whether the size of the wires is specified as conductor diameter or conductor cross section (see table 3.1.1) Network range The required cross section is dependent upon the range of the system. Range is defined as the distance between the most remote subscribers in the system. The following specifications are provided based on the respective distance: Network range [m] Nominal cross section Nominal diameter [mm] [mm²] Up to 250 0,5 approx. 0.8 Up to 500 1,0 approx. 1.3 Table Network topology There are no topology requirements for laying wires, this means that in addition to line wiring, tree and star structures are also possible. In order to ensure good voice quality, the number of junctions should be kept to a minimum. It is important to make sure that good contacts are made between the individual cable segments EMC protection In order to prevent interference in the system caused by EMC issues, it is important to ensure that individual wires in the cable are used exclusively for the operation of the fire brigade communication system. The utilisation of unused wires in the cable for other purposes should be avoided. The latter is to ensure that the power supply lines for the fire brigade communication system do not cause interference in the fire brigade communication system. Potential interference can also be avoided by not using the power supply device for the fire brigade communication system to power other systems. It is also important to ensure that one of the following devices is connected at the end of a cable run: a freecom, a firecom or a handset. This means that there should be no "open-ended" cable runs. SCHAEFER GmbH Fire brigade communication system EN

16 3.1.4 Shield connection As a general rule, the shield has to be interconnected with every clamp connection. A solder lug has to be fitted onto the cable shield in the console. The solder lug should be connected to the mounting plate with a fastening screw. If more than one cable end is present, each cable shield has to be fitted with a solder lug. The cable shields can be combined at the screw that fastens them to the mounting plate. The shield for the entire run has to be connected to the ground wire on at least one end. The handset can be grounded (optional) in accordance with generally applicable requirements. When connecting a freecom or a firecom, the cable shield has to be connected to at least one point on the housing of the freecom or the firecom. This can be done by fitting the cable shield with a solder lug or cable terminal and attaching it to the freecom or firecom with a fastening screw. When making contact with the housing, a lock washer (grooved washer) should be inserted between the housing and the solder lug. It is imperative that the conical side of the washer faces the housing. The connection is compressed with the fastening screw. The lock washers are included in the scope of delivery for freecom and firecom intercom stations. The housing is enriched with electrically conductive substances. The safety washer is pressed into the plastic, thus creating a galvanic connection with the conductive substances. The diagram below illustrates the order in which the fittings are installed. Grooved washer (conical side towards housing) Shield connector Figure Shield connection 4 x M3 spacer nuts (16 mm) SCHAEFER GmbH Fire brigade communication system EN

17 3.2 Block diagram of a fire brigade communication system Figure 3.2 Block diagram Fire-resistant area SCHAEFER GmbH Fire brigade communication system EN

18 3.3 Power supply In the event of an emergency, the EN fire brigade communication system must be powered independently from the public power grid. This means that it is subject to the guidelines established under EN 81-28, section (Power supply: The fire brigade communication system must be able to function independently for at least 1 hour."). There are basically two options for this: Emergency power supply unit and mains power An emergency power source is connected in parallel via a decoupling diode (wiring diagram will be provided by the manufacturer of the emergency power supply unit). Note: Should the mains power fail, the power supply for the fire brigade communication system may not be interrupted Emergency power supply unit only In this case, only an emergency power supply unit is used to power the fire brigade communication system. Note: If the transformer in the back-up unit is not sufficiently rated for the connected load, there is a risk that the storage battery will be drained too quickly during voice connections and therefore may not provide adequate capacity (1 hour) to back-up the system. The connected load for the entire fire brigade communication system can be determined by adding the connected loads of the individual components. The individual connected loads are provided in the system manual (chapter on 'Technical Data'). If lamp attachments are installed, they have to be taken into account as well Power supply via UPS The EN fire brigade communication system can also be powered by an "uninterrupted power supply" unit. If other systems are to be powered by the UPS, this should be done via a DC/DC converter. On request, these devices can be supplied by SCHAEFER GmbH. SCHAEFER GmbH Fire brigade communication system EN

19 3.4 Splash-water protection The firecom intercom station on the fire brigade access level is supplied as a splashwater protected model in accordance with EN (IP X3). The freecom intercom station in the cabin is supplied for use in the fireman's lift as a splash-water protected model in accordance with EN (IP X3). This waterproof model is only available with the 4848 wg hole pattern. Note: Only the preassembled faceplates from SCHAEFER GmbH fulfil EN guidelines. Regarding splash-water protection, SCHAEFER GmbH does not guarantee intercom stations installed by the customer or non-oem intercom stations (opened devices). If the firecom or freecom are not properly installed, this may result in damage not only to the intercom stations, but also to components built into the faceplate (buttons, displays, etc.) due to splash water penetrating the units. Seal Penetration protection Penetration protection Figure Faceplate (Rear side, 4848 wg hole pattern) Figure Intercom station SCHAEFER GmbH Fire brigade communication system EN

20 4. Initial operation 4.1 Assigning addresses to the components All components in the system have to be assigned with an address. The handset is assigned with 0 as an address. The hand-held device assigned as 0 is automatically recognised as the control unit and therefore receives certain special priveleges. Addresses are assigned to hand-held devices by calling up system settings, and to intercom stations by means of a DIP switch. The address F16 is reserved for the firecom in fire brigade access level. The address F1 is reserved for the firecom in the cabin of the fireman's lift. In order for new addresses to be recognised by the system, a broadcast has to be triggered from the handset (control unit) after changing the address of any components connected to the system. The handset (control unit) operator will be prompted to make a broadcast upon startup when the power supply is connected or when power is available again after a mains power failure. However, this message will only appear in the display for approx. 8 seconds. After the installation is complete, a broadcast can be triggered and connections to other components can be checked by pressing the number "0." If any of the subscribers do not appear in the list or if the "no answer" message appears, the wires to the respective components should be inspected (also see section 4.4) Setting DIP switches The address is set with four of the five DIP switches. Table 3 shows the respective positions of switches 1 through 4. F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 Table Switch in the ON position Address settings for the fire brigade communication system F1 Freecom in cabin of fireman's lift F16 Firecom on fire brigade access level SCHAEFER GmbH Fire brigade communication system EN

21 4.1.3 Call key response time The fifth DIP switch is used to set the response time for the call key. Response time is the minimum amount of time the call key must be pressed in order to trigger a call. Response time 0.5 seconds 2 seconds Table Position of switch no Adjusting the volume There is a volume control on every intercom station. In order to prevent screeching noises which can arise during communication, there is an integrated switch which automatically reduces the volume when feedback occurs. In order for this feature to function properly, the set volume should not exceed a certain level. This level will be determined by the acoustics of the cabin. It is important to make sure that the speaker and microphone opening is as flush with the front panel as possible when installing the intercom station. For installation in the ceiling of the cabin it is important to ensure that the speaker and microphone opening faces downward in the direction of the cabin, and that it is not covered up by sheet metal or any other object. If the volume is set too high, speech will not be clearly transmitted. Turn down the volume if this is the case. 4.2 System settings Please read this chapter carefully. Incorrect programming of addresses or incorrect assignment of the intercom stations can compromise the functionality of the system Invoking setup mode Wait until the handset goes into energy-saving mode (display switched off). Enter the following four digit code: The software date will appear in the display. Press the number "5" key to enter setup mode Language Select a language at the first menu prompt. The display shows: DE U T S CH # E N G L I S H Using the " " or "#" keys, choose between German and English text. SCHAEFER GmbH Fire brigade communication system EN

22 4.2.3 Assigning addresses Component addresses will be assigned at the next menu prompt. The display shows: A D D R. X X NO # YES Press the "#" key to confirm the address shown and exit the menu prompt. Press the " " key to change the address of the handset. The hand-held device is initially assigned an address of "0." The display shows: NEW A D D R 0 0 Enter the new address for the hand-held device using the numeric keys. Please note: two digits ("00") have to be entered. You can return to the first position by pressing the " " key. Press the "#" key to complete your entry. The display will show: ADD R. XX NO # Y ES Press the "#" key to confirm the new address. You can discard the change by pressing the " " key. The old address will remain unchanged. Note: For fire brigade communication systems the handset (control unit) must be installed in the machine room for the fireman's lift. This hand-held device has to be programmed with 0 as the address Setting the duration of voice connections At this menu prompt, the maximum duration for voice connections can be set. This means that after a predefined period of time (60 to 250 seconds), the person using the handset (control unit) will be required to prolong the duration of the voice connection (see section 1.2 "Description of the fire brigade communication system"). The display shows: T I M E YE S X X X # NO Press the "#" key to confirm the duration shown for voice connections and exit the menu prompt. Press the " " key to change the duration of voice connections. The system limits the period of time you can enter to between 60 and 250 seconds. The display shows: T I M E N E W s e c. Use the numeric keys to enter a new duration for voice connections. Please note: three digits (060, ) have to be entered. You can move back to the previous digit by pressing the " " key. SCHAEFER GmbH Fire brigade communication system EN

23 If the value entered exceeds 250, the entry will not be accepted. If the value entered is below 60, it will be automatically reset to 60 seconds after being confirmed by the system. Press the "#" key to complete your entry. The display will show: T I M E X X X Press the "#" key to confirm the new duration for voice connections. You can discard the change by pressing the " " key. The old duration for voice connections will remain unchanged Automatic clearing of incoming call notifications In general, paging signals will be displayed until they are answered by a hand-held device. As the EN fire brigade communication system is only used for voice connections and not as an alarm registration device, it is possible to set a time limit after which a paging signal is cleared from all hand-held devices (see section 5 "Operation"). This setting is applied to the entire system and can only be changed from the handset (control unit). The display shows: Press the " " key if you do not want incoming call notifications to be cleared automatically. Press the "#"-key and you will be prompted to enter a time limit. The display shows: You can specify a period between 1 and 99 minutes. Complete your entry with the "#"-key and confirm the value again. 4.3 User settings NO You can adjust the contrast of the display and switch off the buzzer in the hand-held device via the "Settings" menu Invoking the settings menu Wait until the handset goes into energy-saving mode. Press the number "5" key to enter the "User settings" menu Adjusting the contrast of the display At the first menu prompt, you can adjust the contrast of the display to suit the surrounding lighting conditions. The display will show: C o n t r a s t The contrast can be increased and/or reduced by pressing keys "1" and "2". # Y ES A l a r m Z L NO # Y ES t i. L i m i t 0 0 m i n # > SCHAEFER GmbH Fire brigade communication system EN

24 Press the "#" key to advance to the next menu prompt. If an entry is not made within 20 seconds, the user settings menu will be exited without saving the settings Switching off the buzzer At the second menu prompt, you can switch off the buzzer. The display will show: Use the " " and "#" keys to select whether the buzzer should be used to signal alarms and incoming calls. All incoming calls will still be signalled in the display and via the LED. 4.4 Broadcasts Broadcasts are triggered from the handset (control unit). This can be used to check that there are connections to all of the other components. A broadcast can be triggered at any time, as needed, or when prompted by the system, by pressing the "0" key. When the system is connected to the supply voltage you will be prompted to trigger a broadcast. The display will show: Press the "0" key to start the broadcast. All components which are recognised during the broadcast will be listed in sequential order in the second line of the display. The number in the upper right-hand corner of the display is only a reference number and is not related to the actual address of a component. The display shows: For example: Firecom detected A warning message will be displayed if any previously recognised components are not detected during the broadcast. Missing components will be briefly shown in the display. These components can be called one by one. The display will show: B u z z e r NO # Y ES C H E C K P r e s s 0 C H E C K 3 1 F W S P 3 2 C H E C K? NO # Y ES Press the " " key if the components have been removed from the network and should not be called. A message will appear in the display indicating that the subscriber will be deleted from the list. Confirm this action by pressing any key. You can begin calling the components by pressing the "#" key. As each component responds, the address of the extension is displayed and the component is added to the list. If a component does not respond, inspect the component and/or the cable. SCHAEFER GmbH Fire brigade communication system EN

25 If a deleted component is recognised again during a subsequent broadcast or is acknowledged upon signalling an alarm or making a call, it will be automatically added to the subscriber list. In order to store all of the addresses for components connected to the system, make sure all voice connections have been terminated. The hand-held device handset (control unit) automatically goes into "power down" mode and immediately saves the addresses of all components connected to the system. The display will go out. 5. Operation 5.1 Hand-held device (handset) The handset can call all other components in the fire brigade communication system in order to establish a voice connection. The bottom row of keys ( 0 #) is used to select a remote station, and then the number of the subscriber can be entered Calling an intercom station (F) Press the " " key. The display shows: Using the numeric keypad, enter the number of the intercom station. After the entire number has been entered, the intercom station (freecom or firecom) will be called and a voice connection will be established. As this system uses a two-digit format for addresses, single-digit addresses have to be entered either as a two-digit number (01) or as a single digit followed by the "#" key ("1#"). A voice connection with the firecom can be established by entering "F16". The call can be cancelled by pressing the " " key. The display shows: XX = number of the freecom ("F1" in this case).. FWSP = connection with the firecom C A L L F _ C O N N E C T F X X In order to prevent the conversation in the cabin from being unintentionally overheard, the voice connection is initially established in one direction only - to the cabin. Two-way communication is established when the call key (optional attachment) in the cabin is pressed. This one-way mode of communication is only active when the EN fire brigade communication system is not in fire brigade mode. The voice connection can be terminated by pressing the " " key Terminating/prolonging voice connections Voice connections can only be terminated from the hand-held device. The handset user can terminate the connection and make the line available for other voice connections by pressing the " "-key. In addition, all voice connections will be automatically terminated after a predefined duration unless the connection is prolonged by the user (see section 4.2.4). SCHAEFER GmbH Fire brigade communication system EN

26 Ten seconds before termination, an audible signal will be given and the following message will appear in the display: Press the "#" key to prolong the voice connection for an additional XXX seconds Switching between intercom stations If a voice connection made from the handset to an intercom station is active, it can be terminated as described in section After the voice connection has been terminated, a new voice connection with another intercom station may be established as described in section Answering paging signals Incoming calls are signalled via the buzzer and the LED on the handset. As soon as a paging signal is answered, the LED starts to blink and the buzzer is sounded. As long as the call key on the freecom is being depressed, the buzzer in the handset will emit a sustained audible signal. Once the key is released, an intermittent audible signal is emitted. This signal will be heard until the paging signal is answered at the handset and a voice connection is established with the intercom station. The paging signal is shown in the display: Press the "#" key to answer the paging signal. A voice connection will be established and shown in the display: C O N N E C T X X X s + # A L A R M F X X # C O N N E C T F X X In this case, a two-way voice connection will be established straight away with the freecom in the cabin. The paging signal is deleted as soon as the voice connection is established.the voice connection can be terminated by pressing the " " key. Note: Paging signals can only be triggered by a freecom which is not already engaged in a voice connection. Make sure that the setting for the "Automatic clearing of incoming call notifications" (section 4.2.5) has been properly configured. In general, the firecom cannot trigger paging signals Fire brigade communication A voice connection is automatically established for the fire brigade after the fire brigade key switch on the fire brigade access level has been activated. At this moment, the fire brigade communication system goes into "fire brigade mode." In accordance with EN 81-72, the firecom, freecom and handset are all included in the voice connection. SCHAEFER GmbH Fire brigade communication system EN

27 The status of the voice connection is signalled on the intercom stations via the optionally attachable lamps "H2". The handset in the machine room for the fireman's lift will indicate which components (excluding the handset) are still participating in the voice connection. The display shows: In this example, in addition to the hand-held device, the freecom intercom station in the cabin "F1" and the firecom intercom station on the fire brigade access level "FW" are still participating in the voice connection. Note: In order to activate the hand-held device, one or more of the keys in the top three rows has to be pressed. Establishing a fire brigade voice connection (also see "Operating the firecom") Switching between intercom stations in fire brigade mode If, for example, a voice connection is taking place between the freecom in the cabin "F1," the firecom intercom station on the fire brigade access level and the handset in the machine room for the fireman's lift, these will all be indicated on the handset display. Press the " " key twice. C O N N E C T F 1 F W C O N N E C T F 1 F W The display shows: C A L L F _ For a period of approx. 5 seconds, a voice connection can be established with the freecom in the cabin or with the firecom on the fire brigade access level by entering their respective numbers. If a voice connection with the selected intercom station is not established within approx. 5 seconds, or if such connection is established and then terminated, the connection between the freecom, firecom and handset will be reestablished (in fire brigade mode only). This is advantageous if it becomes necessary to suppress persistent noise from a specific intercom station. Note: The system remains in "fire brigade" mode during the entire process. In order to activate the hand-held device, even for a voice connection with a single intercom station, one or more of the keys in the top three rows on the keypad has to be pressed. SCHAEFER GmbH Fire brigade communication system EN

28 5.1.7 Paging signals in fire brigade mode When the fire brigade communication system is in "fire brigade mode," the paging signal is given via an intermittent audible signal which is emitted every 12 seconds (approx.) from the hand-held device. The paging signal is shown in the display: The display shows: In this case, two steps are necessary. Press the " " key to terminate or park the fire brigade voice connection. The paging signal is still shown in the display: Press the "#"-key. A voice connection will be established and shown in the display: A L A R M F X X A L A R M F X X # C O N N E C T F X X The voice connection can be terminated by pressing the " " key. Note: After a predefined duration, this voice connection will be terminated by the system and the fire brigade voice connection will be reestablished. In order to activate the hand-held device, even for a voice connection with a single intercom station, one or more of the keys in the top three rows on the keypad has to be pressed Mute function In order to prevent loud noises from being constantly transmitted to the fire brigade access level and/or the cabin while in fire brigade mode, the microphone in the handheld device has been designed so that it will only be active while the hand-held device is actually being used. The microphone is activated by depressing one or more of the keys in the top three rows of the keypad. The microphone is disabled again when the key(s) is released. If the fire brigade communication system is not in fire brigade mode, the top three rows of keys will not have a muting function during a voice connection between the hand-held device and an intercom station. Note: For this version, the speaker is also disabled when the mute function is active. The ( 0 #) keys are located in the bottom row of keys, and they always have the same functions regardless of the mode of operation Energy-saving mode After ten seconds of inactivity, the hand-held device handset switches into stand-by mode in order to conserve energy. The display and all other indicators are switched off while in this mode. The device is automatically activated if a key is pressed or there is an incoming call. SCHAEFER GmbH Fire brigade communication system EN

29 5.2 Intercom station (freecom) The intercom station can be equipped with an optional paging signal key (T1) and two lamps (H1 and H2) which are connected as external attachments (fig ) Paging key The paging key has two functions: a) To initiate a paging signal when the freecom is not participating in a voice connection, and to b) enable the microphone. When an incoming voice connection is initially established with the freecom, communication is one-way only. The person using the intercom station can hear what is being said on the freecom, for example. The person at the other intercom station can not hear what is being said in the cabin. Two-way communication is only established after the paging key has been pressed. Note: The one-way communication feature is disabled when in "fire brigade mode" Signalling The first indicator (H1) acknowledges the paging signal, and is only cleared from the freecom after the handset (control unit) has confirmed acceptance of the incoming call. This confirmation occurs automatically via the control unit and does not require input from the user. The second indicator (H2) signals that a voice connection has been established. The following indications are given: a) H2 is illuminated = active voice connection b) H2 is blinking = the fire brigade communication system is currently in fire brigade mode and the microphone is disabled. Paging signals are indicated on the handset (control unit), both visually and audibly. It is not possible to listen-in on the conversation in the cabin unless an alarm has been triggered. Two-way communication is only enabled after the alarm key in the cabin has been pressed Energy-saving mode After ten seconds of inactivity, the freecom switches into stand-by mode in order to conserve energy. The device is automatically activated if a call is initiated or if a call is received (voice connection established). SCHAEFER GmbH Fire brigade communication system EN

30 5.2.4 Communication Communication is facilitated by a microphone (for replies) and a speaker (for incoming speech). The microphone can optimally process and transmit speech signals at a range of 5 to 50 cm. The speaker volume is set by the system installer and cannot be adjusted once it is in operation. An integrated electronic switch prevents feedback from occurring. Note: As long as the microphone is picking up sound waves, the device briefly suppresses output through the speaker. This means that as long as someone is speaking at a detectable level, nothing will be heard through the speaker. 5.3 Intercom (firecom) The installation of a force key (T1) and a fire brigade key switch (S2) on the intercom station is compulsory. The fire brigade key switch is not located in the same faceplate as the intercom station. Optional lamps (H1 and H2) can be installed as external attachments (see section 2.3.1) Fire brigade key switch The fire brigade key switch has to be configured in accordance with the requirements of the control system manufacturer and in compliance with EN directives. The first phase of the fire brigade mode is initiated via activation of the fire brigade key switch on the fire brigade access level. At this point, an interactive, two-way voice connection is established by the EN fire brigade communication system between the firecom intercom station on the fire brigade access level, the freecom intercom station in the cabin of the fireman's lift and the hand-held handset device in the machine room for the fireman's lift. At this moment, the fire brigade communication system goes into "fire brigade mode." The EN fire brigade communication system remains in "fire brigade" mode during phases 1 and 2 and maintains the communication described above Force key The force key has two functions: a) If the system is in "fire brigade" mode and the force key is pressed, this switches off the microphone in the freecom. When the force key is released, the microphone in the freecom is switched on again and a normal, bidirectional voice connection is reestablished. Extremely loud and disturbing noises can be briefly suppressed so that a voice connection in the cabin can be established without difficulty. b) If the system is in "fire brigade" mode and the freecom or the firecom are not already engaged in a voice connection, a voice connection can be established between the machine room, cabin and fire brigade access level by pressing the force key. These functions were designed to ensure that the person using the firecom on the fire brigade access level always has priority when speaking to the cabin. SCHAEFER GmbH Fire brigade communication system EN

31 5.3.3 Signalling The firecom intercom station has a connection terminal for two optional lamps: an indicator for "signalling" (H1) and an indicator for "voice connections" (H2). The following indications are given: a) Both lamps are off = no activity b) H1 is lighted and H2 is off = the device is malfunctioning, or the fire brigade communication system is in fire brigade mode and the connection to the cabin is faulty. c) H1 is off and H2 is lighted = The fire brigade communication system is not in fire brigade mode and the firecom is engaged in a voice connection (machine room/fire brigade access level). Or fire brigade communication system is in fire brigade mode and the firecom is engaged in a voice connection (cabin/fire brigade access level). d) H1 is blinking and H2 is off = The fire brigade communication system is in fire brigade mode and the firecom is not engaged in a voice connection. There is only a voice connection between the machine room for the fireman's lift and the cabin in the fireman's lift. e) H1 is blinking and H2 is lighted = The fire brigade communication system is in fire brigade mode and the firecom is engaged in the voice connection (machine room/fire brigade access level). At present, there is no voice connection with the cabin. Note: If the fire brigade communication system is in "fire brigade mode," the person using the firecom can force a voice connection with the cabin at any time by pressing the force key (see section 5.3.2) Energy-saving mode After ten seconds of inactivity, the firecom switches into stand-by mode in order to conserve energy. The device is automatically activated if the force key is pressed, the fire brigade key switch is activated or if a call is received (voice connection established) Communication See section SCHAEFER GmbH Fire brigade communication system EN

32 6. Terminal connection diagram 6.1 Star topology SCHAEFER GmbH Fire brigade communication system EN

33 6.2 Line topology SCHAEFER GmbH Fire brigade communication system EN