SITESTAR CABINET DESCRIPTION

SITESTAR CABINET DESCRIPTION Product No: D000100/1 Revision: 03 SiteTel Sweden AB Haukadalsgatan 8A, SE-164 40 Kista, Sweden www.northbattery.com

Contents 1 INTRODUCTION... 4 1.1 TARGET GROUP...5 1.2 DOCUMENTS...5 1.3 ILLUSTRATIONS...5 1.4 PREREQUISITES...5 1.5 ABBREVIATIONS...5 2 DESCRIPTION... 6 2.1 PRODUCT OVERVIEW...6 2.1.1 MAIN FEATURES...6 2.1.2 PRODUCT APPROVALS...7 2.2 UNITS IN THE SYSTEM...8 2.2.1 CABINET...9 2.2.2 EARTH GROUNDING...9 2.2.3 DOOR... 10 2.2.3.1 Climate Control Unit... 11 2.2.3.2 Locking System... 12 2.2.4 CONNECTION FIELD... 13 2.2.4.1 Cable Entries... 13 2.2.4.2 DC Connection Unit... 14 2.2.4.3 CLU Power Connection Terminal... 15 2.2.4.4 Circuit Breaker... 15 2.2.4.5 Surge Protection Device... 15 2.2.4.6 External Alarm Connection... 15 2.2.5 BATTERIES... 18 2.2.6 EQ ZONE 4 CABINET VERSION... 18 2.2.7 PLINTH... 19 2.3 CUSTOMER EQUIPMENT... 20 2.4 SIZE AND WEIGHT... 21 2.5 SPACE REQUIREMENTS... 22 Doc. No: D000100-INS-01, Rev I Page 2 of 35

2.5.1 AIRFLOW CLEARANCE... 24 2.6 CLIMATE SYSTEM... 24 2.6.1 GENERAL... 24 2.6.1.1 Normal Operational Mode... 25 2.6.1.2 Factory Test Mode... 26 2.6.2 TEMPERATURE REGULATION... 26 2.7 OPERATING ENVIRONMENT... 28 2.8 ELECTRICAL PERFORMANCE... 29 2.8.1 BATTERY CAPACITY... 29 2.8.2 OPERATING CONFIGURATION... 30 2.8.3 CHARGING AND DISCHARGING CHARACTERISTICS... 35 Doc. No: D000100-INS-01, Rev I Page 3 of 35

1 INTRODUCTION This document describes the SiteStar Cabinet, an outdoor/indoor battery backup system providing -48 V DC backup power in the event of AC mains failure, and for Hybrid powered Sites. The cabinet is available in two sizes, 1.8 m and 1.1 m high. The 1.8 m cabinet is available in an EQ Zone 4 version for areas exposed to earthquake risk. The cabinet is available in the following electrical versions: 230 V AC 115 V AC -48 V DC If not otherwise stated, the content of this documentation applies to all versions. Figure 1 1.8 m and 1.1 m high SiteStar Cabinets Doc. No: D000100-INS-01, Rev I Page 4 of 35

1.1 TARGET GROUP The target group for this document is the personnel involved in the site installation engineering process and those responsible for the installation, integration and maintenance of the site. 1.2 DOCUMENTS The following documents are available to provide detailed information on the SiteStar Cabinet and its handling: 1.3 ILLUSTRATIONS D000100/2, SiteStar Cabinet Installation D000100/3, SiteStar Cabinet Maintenance D000100/4, SiteStar Spare Parts Illustrations in this document can show alternative designs. 1.4 PREREQUISITES All performance statement in this document relies on the following: Only approved hardware are used Proper hardware handling 1.5 ABBREVIATIONS Installation and maintenance instructions as well as documentation for external equipment are followed Abbreviations used in this document. AC CB CCU CLU DC DCCU EN ESD Alternating Current Circuit Breaker Climate Control Unit Climate Unit Direct Current Direct Current Connection Unit European Norm Electrostatic Discharge Doc. No: D000100-INS-01, Rev I Page 5 of 35

EQ LED PE PSU RoHS SPD WEEE Earthquake Light Emitting Diode Protective Earth Power Supply Unit Restriction of Hazardous Substances Surge Protection Device Waste Electrical and Electronic Equipment 2 DESCRIPTION This section describes the SiteStar Cabinet. 2.1 PRODUCT OVERVIEW The SiteStar Cabinet supports external equipment with battery backup power. The SiteStar cabinet features an active climate solution which maximizes battery lifetime in warm climates and battery capacity in cold climates. SiteStar cabinets are designed for both indoor and outdoor environments, with a unique combination of low thermal conductive materials and a highefficiency climate solution. With an extremely cost-effective cooling technology and a cabinet shell that allows minimal transfer of temperatures, we keep your batteries at optimal operating temperature, with the energy usage equivalent to a single light bulb. This means the SiteStar cabinets offer up to 95% power savings compared to airconditioned cabinets. In case additional battery capacity is required, the SiteStar cabinet can be extended with a second SiteStar cabinet. The system is approved for operation throughout the world. For areas exposed to earthquake risk, the Earthquake Zone 4 Cabinet version shall be considered. 2.1.1 MAIN FEATURES The SiteStar Cabinet: Is designed for outdoor use Is IP 55 shielded Doc. No: D000100-INS-01, Rev I Page 6 of 35

2.1.2 PRODUCT APPROVALS The SiteStar Cabinet complies with the following standards: Transport ETSI EN 300 019-1-2 Class 2.3 Storage ETSI EN 300 019-1-1 Class 1.2 Operation ETSI EN 300 019-1-4 Class 4.1, extended temperature range Chemical and mechanical substances EMC: ETSI EN 300 019-1-4 Class 4.1 EMC directive 2004/108/EC ETSI EN 300 386 FCC CFR 47 part 15 ICES-003 Safety: CB, CE IEC 60 950-1 IEC 60 950-22 LVD: Applies only for the AC versions IEC 60 529 IEC 60 335 LVD 2006/95/CE IP55 Cooling system Low voltage directive ETL: UL 60 950 UL 60 950-22 UL 50 E UL 1995 Cooling system Doc. No: D000100-INS-01, Rev I Page 7 of 35

2.2 UNITS IN THE SYSTEM This section contains descriptions of the units in the system. Figure 2 EQ Zone 4 Cabinet and Cabinet without EQ Zone 4 Reinforcement Key to Figure 2 A Cabinet See section 2.2.1 B Earth Grounding See section 2.2.2 C Door See section 2.2.3 D Climate Control Unit See section 2.2.3.1 E Connection Field See section 2.2.4 F Batteries See section 2.2.5 G EQ Zone 4 Reinforcement Valid only for the EQ Zone 4 Cabinet See section 2.2.6 H Plinth See section 2.2.7 Doc. No: D000100-INS-01, Rev I Page 8 of 35

2.2.1 CABINET The cabinet structure consists of an inner and an outer liner. The volume between the liners is filled with foam insulation. With this design there is virtually no heat-bridges in the climate insulation and thus giving the cabinet an excellent thermodynamic performance. The top of the cabinet is provided with four M8 threaded holes that are provided for the usage of lifting eye bolts. The roof of the cabinet is designed with a small overhang in the front to protect the top of the environmental seal from direct sunlight and water. 2.2.2 EARTH GROUNDING The cabinet is equipped with earth grounding points as follows: Cabinet without EQ Zone 4 Reinforcement The cabinet is equipped with a double M8 earth point at each side of the plinth, A in the figure below, for connection to site earth grounding point. Figure 3 Earth Grounding in Cabinet without EQ Zone 4 Reinforcement The PE wire of the incoming AC feed (if any) is terminated in a green/yellow PE terminal located inside the CF, securely connected to the cabinet ground. EQ Zone 4 Cabinet The cabinet is equipped with four earth grounding studs in the bottom of the cabinet, Figure 4, for connection to site earth grounding point. Doc. No: D000100-INS-01, Rev I Page 9 of 35

Figure 4 Earth Grounding Studs in EQ Zone 4 Cabinet The PE wire of the incoming AC feed (if any) is terminated in a green/yellow PE terminal located inside the CF, securely connected to the cabinet ground. 2.2.3 DOOR The door is of the same design concept as the cabinet when it comes to the thermal insulation, with an inner and outer liner and insulation foam in between. The SiteStar Cabinet Door contains the climate unit, the climate control unit and the door locking system. This section describes the: Climate Control Unit Locking System Doc. No: D000100-INS-01, Rev I Page 10 of 35

2.2.3.1 CLIMATE CONTROL UNIT The Climate Control Unit (CCU) is monitoring the temperature inside the cabinet and regulates the Climate Unit (CLU). The external alarm interface on the CCU is wired to the Connection Field, which includes the interface for the outgoing external alarm cables. The control unit and its panel are located at the inside of the bottom part of the door. Figure 5 shows the panel. The panel also exists with an ECO indicator and switch, see Figure 6. Fault indicator is red, Operational green and Information yellow. Figure 5 CCU Panel Doc. No: D000100-INS-01, Rev I Page 11 of 35

Figure 6 below shows the CCU panel for Cabinets with Eco mode. Figure 6 CCU Panel with Eco mode Eco and operational indicators are green, test is yellow and fault is red. To the left of the LED indicators a plug is located. Behind the plug, the switch for the eco operation is located. 2.2.3.2 LOCKING SYSTEM The doors are equipped with a locking system. As default, the locking system is factory installed at the right side of the door. It is possible to shift the locking installation to right hanging door. See D000100/2, SiteStar Cabinet Installation, for how to do. Doc. No: D000100-INS-01, Rev I Page 12 of 35

2.2.4 CONNECTION FIELD This section contains information about the Connection Field (CF) and equipment installed there in. Figure 7 Connection Field Parts Key to Figure 7 A Cable Entries See section 2.2.4.1 B DC Connection Unit (optional) See section 2.2.4.2 C CLU Power Connection Terminal See section 2.2.4.3 D Circuit Breaker See section 2.2.4.4 E Surge Protection Device (SPD) (optional) See section 2.2.4.5 F External Alarm Connection See section 2.2.4.6 2.2.4.1 CABLE ENTRIES The cabinet is prepared for installation of cable entries at both sides of the connection frame. At delivery the entries are equipped with covers. Doc. No: D000100-INS-01, Rev I Page 13 of 35

2.2.4.2 DC CONNECTION UNIT In cabinets with DC powered CLU the batteries and the CLU can be connected direct to an external power supply unit or through the optional DC Connection Unit (DCCU). The DCCU is a connection point, including fuses, for up to 4 battery strings. Cable lugs for cables up to 95 mm 2 can be used with the DCCU. All connections are M8 studs and the distances between the studs are 1 inch. The DCCU is installed at the bottom of the cabinet, Figure 8. For further information, see D000108, SiteStar DCCU Kit. Figure 8 DCCU Warning! If the SiteStar cabinet is configured without the DCCU, it is of vital importance that the Battery cables are provided with adequate protection at the site to ensure compliance to national wiring regulations. It is recommended to use SiteTel Cables to ensure a safe connection. Risk of personal injury and property damage. Doc. No: D000100-INS-01, Rev I Page 14 of 35

2.2.4.3 CLU POWER CONNECTION TERMINAL The cabinet is equipped with a CLU power connection terminal, at the bottom of the CF, for the connection of power to the CLU. 2.2.4.4 CIRCUIT BREAKER The Circuit Breaker (CB) is located at the same DIN rail as the CLU power connection terminal. 2.2.4.5 SURGE PROTECTION DEVICE The CF can include an optional Surge Protection Device (SPD) hardware to protect the CCU from over voltage. The SPD is located at the same DIN rail as the CLU power connection terminal. 2.2.4.6 EXTERNAL ALARM CONNECTION The system supports sending 3 external alarms. The alarms are sent by relays, connected as normally closed (NC). The external alarms will be trigged by: CLU failure: fan fail or controller fail Temperature: Internal temperature outside regulation window or external temperature outside system specification Door switch open Mains failure The following table shows the connection between the alarm signals and the alarm relays K1, K2, and K3. Alarm Routing K1 K2 K3 Temperature, indoor Temperature, outdoor Fan Door alarm Compressor fail Heater fail CLU Mains failure X X X X X During the startup sequence the external alarm will be triggered several times. X X X X Doc. No: D000100-INS-01, Rev I Page 15 of 35

The following figure shows the connections between the alarm D-sub connector and the external connection terminal. Figure 9 External Alarm Outputs Alarm Output Markings Terminal Number Marking 1 K1-NO 2 COM 3 K1-NC 4 Door-NC 5 K3-NC 6 GND 7 +12 V DC 8 Shield Doc. No: D000100-INS-01, Rev I Page 16 of 35

Figure 10 shows the physical location and the marking of the external alarm terminal block. Figure 10 Terminal Block Location and Marking Doc. No: D000100-INS-01, Rev I Page 17 of 35

2.2.5 BATTERIES The specified performance and warranties stipulate the usage of batteries that have been approved for the SiteStar Cabinet. The table below shows approved battery blocks: Manufacturer Battery Block Designation Battery Block Data NorthStar NSB 100 FT Silver 12 V DC, 101 Ah, AGM 101 Ah NorthStar NSB 100 FT Blue 12 V DC, 84 Ah, AGM 84 Ah NorthStar NSB 100 FT Blue+ 12 V DC, 100 Ah, AGM 84 Ah NorthStar NSB 100 FT Red 12 V DC, 100 Ah, AGM 100 Ah NorthStar NSB 170 FT Silver 12 V DC, 172 Ah, AGM 172 Ah NorthStar NSB 170 FT Blue 12 V DC, 141 Ah, AGM 141 Ah NorthStar NSB 170 FT Blue+ 12 V DC, 170 Ah, AGM 170 Ah NorthStar NSB 180 FT Red 1 12 V DC, 180 Ah, AGM 180 Ah Battery Capacity per -48 V DC String For information about OPzV batteries, see D001490, SiteStar OPzV Battery Installation. 2.2.6 EQ ZONE 4 CABINET VERSION For areas exposed to earthquake risk, the EQ Zone 4 Cabinet version shall be considered. The EQ Zone 4 Cabinet is a standard cabinet equipped with a factory installed optional EQ Zone 4 reinforcement. The EQ Zone 4 reinforcement consists of: Reinforced wall structure Reinforced shelves Stronger attachment to the foundation 1 Will be replaced with NSB 190 FT Red Doc. No: D000100-INS-01, Rev I Page 18 of 35

Figure 11 EQ Zone 4 Cabinet Key to Figure 11 A B C D E Reinforced Wall Structure Reinforced Shelf Front Bar Cross Braces Stronger Attachment to the Foundation 2.2.7 PLINTH The cabinet can be equipped with different bottom solutions for the installation to the foundation. Cabinet Without EQ Zone 4 reinforcement With EQ Zone 4 reinforcement With EQ Zone 4 / NEBS reinforcement Mounting Plinth D001233 N/A NSC0001-OPT5 Doc. No: D000100-INS-01, Rev I Page 19 of 35

2.3 CUSTOMER EQUIPMENT If customer equipment is to be installed into the cabinet, the heat dissipation must not exceed the values in Table 1. Table 1 Maximum Heat Load SiteStar Tall SiteStar Small DC AC DC AC Maximum Ambient Temperature 1 [ C] P max [W] P max [W] P max [W] P max [W] 20 100 80 2 80 N/A 25 100 80 2 80 N/A 30 100 80 2 40 N/A 35 50 25 2 N/A N/A 40 25 N/A N/A N/A 45 N/A N/A N/A N/A 50 N/A N/A N/A N/A 1 2 Temperature outside the cabinet Power-outs needs to be considered when designing system. Notes: - If DC cabinets are used in hybrid sites, no additional heat load is allowed. - Cabinets needs to be placed in free air (minimum 1 meter to nearest object). - Sun screen must be used. - If equipment with heat dissipation over 20 W is installed, the system must be tested in the environment where intended to be used. - All configurations with additional active equipment is the responsibility of the system designer. Doc. No: D000100-INS-01, Rev I Page 20 of 35

2.4 SIZE AND WEIGHT Area Tall Cabinet Small Cabinet Units Size (l*w*h) Standard Cabinet 782*660*1850 782*660*1100 mm Size (l*w*h) EQ Zone 4 Cabinet 782*660*1800 mm Size (l*w*h) EQ Zone 4 / NEBS Cabinet Weight: Standard Cabinet Complete Weight: EQ Zone 4 Cabinet Complete Weight: EQ Zone 4 / NEBS Cabinet Complete 782*660*1813 mm 95 75 Kg 196 Kg 202 Kg Weight: Mounting Plinth D001233 6.5 6.5 Kg Weight: Mounting Plinth NSC0001-OPT5 12,5 Kg Weight: Battery Shelf 5 5 Kg Internal load handling for each shelf 250 250 Kg Doc. No: D000100-INS-01, Rev I Page 21 of 35

2.5 SPACE REQUIREMENTS Figure 12 shows the necessary minimum height to roof for raising the 1.8 m high cabinet to standing position. Figure 12 Minimum Height Doc. No: D000100-INS-01, Rev I Page 22 of 35

Figure 13 shows the clearance between the cabinet and walls. Figure 13 Cabinet Clearance to Wall Minimum Recommended A 0 mm 10 mm B 20 mm 200 mm C 210 mm 450 mm Doc. No: D000100-INS-01, Rev I Page 23 of 35

Figure 14 shows the clearance to the roof when the cabinet is standing up. Figure 14 Cabinet Clearance to Roof Minimum Recommended D 50 mm 200 mm 2.5.1 AIRFLOW CLEARANCE Airflow clearance around the cabinet must be secured. 2.6 CLIMATE SYSTEM This section describes the climate system. 2.6.1 GENERAL The cabinet features a climate system including heating and active cooling systems. The system ensures maximum battery life in cold and warm climates. SiteStar can be set to power-up and operate in one of two modes: Normal Operational Mode Factory Test Mode Doc. No: D000100-INS-01, Rev I Page 24 of 35

The mode is selected when the system is powered up based on the state of the door switch. Normal Operational Mode is selected if the door switch is open when the power is switched on and Factory Test Mode if the door switch is closed. 2.6.1.1 NORMAL OPERATIONAL MODE In Normal Operational Mode the system operates as follows: Power-up SW initiation Self test Module test Relay test Indicator test Operation Temperature regulation ECO Operation ECO operation (if available) Power-up When the system is powered up in Operational mode, it will automatically initiate the SW s start-up sequence. Self-test The system does a self test at start-up. The start-up sequence is up to 2 minutes long. During the self test, all components in the system are tested, i.e. compressor, fan, heater (if equipped), temperature sensors, etc. The yellow indicator is lit during the self test sequence. After the self-test is completed the system will go into operation mode, or indicate a fail. As the system goes into operation, the yellow indicator will go out, and the green Operational will be lit. Doc. No: D000100-INS-01, Rev I Page 25 of 35

After approximately 1 minute in operation mode, Door Alarm is activated. The alarm is revoked 1 minute after closing the door. Operation After the system has completed the self test sequence the system will start to regulate the temperature inside. If necessary the system can be equipped with a heater. If so, the system will remain the optimum temperature for the batteries in sub zero temperatures down to -40 C. ECO Operation Some SiteStar systems have an ECO Operation mode. This mode will reduce power consumption up to 20%. Fail The following fails can be detected: Compressor fail Temperature sensor fail Fan fail Internal Heater fail (if equipped) Over temperature, inside Under temperature, Inside Over temperature, outside 2.6.1.2 FACTORY TEST MODE Factory test mode is only used during factory test before delivery to site and should not be used when the system is installed on site due to long test cycle. In Factory test mode the factory technicians can carefully test the system temperature regulation function. No alarm indications or external alarms are activated in this mode. 2.6.2 TEMPERATURE REGULATION In normal operation mode the temperature can vary between 21 C and 24 C. In ECO mode the temperature can vary between 10 and 27 C. Doc. No: D000100-INS-01, Rev I Page 26 of 35

If the ambient temperature, T a, is above +55 C the temperature alarm will be active.. The cooling system has the following protective functions: Reduced running time for the compressor at high temperature Automatic de-icing Thermal shut down of compressor Temperature limits and functions: The following table shows the regulation functions and temperature limits. Function Temperature Comment DC Cabinet 2 AC Cabinet Cabinet temperature high Cabinet temperature low Compressor reduced cooling power Compressor reduced cooling power Compressor thermal shut down Ambient temperature high +40 C inside cabinet +0 C inside cabinet +55 C inside cabinet +50 C ambient +30 C inside cabinet +5 C inside cabinet +43 C ambient Temperature alarm is sent. Temperature alarm is sent Alarm is still active Alarm is still active +55 C +55 C Temperature alarm is sent +55 C +55 C Temperature alarm is sent De-icing N/A N/A Runs after compressor has been running continuously for 24 hours. De-icing cycle is 30 minutes long. 2 Different limits may apply see documentation delivered with each cabinet. Doc. No: D000100-INS-01, Rev I Page 27 of 35

To force the compressor to run, the inside temperature needs to be above 24 C (in normal operation) or 25 C (in ECO Operation) If the outside temperature is too high, the running time of the compressor is reduced to approx 30% (9 minutes running/25 minutes resting) 2.7 OPERATING ENVIRONMENT Operating Environment Highest ambient temperature Lowest ambient temp. (optional heater) Tall Cabinet AC Cabinet Units Small: +49 +55 C Tall: +55-40 -40 C Humidity 100% 100% RH Air pressure 70 to 106 70 to 106 kpa Doc. No: D000100-INS-01, Rev I Page 28 of 35

2.8 ELECTRICAL PERFORMANCE General Alarm connection Power consumption max at cooling Power consumption max at heating AC powered CLU AC connection Tall Cabinet Small Cabinet Units Individual; CLU, internal and door. D-sub Individual; CLU, internal and door. D-sub 150 150 W 250 250 W Tall Cabinet Small Cabinet Units 103-127 or 198-250 103-127 or 198-250 V AC Frequency 60 ±5% or 50/60 ±5% 60 ±5% or 50/60 ±5% Hz DC powered CLU Tall Cabinet Small Cabinet Units DC connection -42 to -60-42 to -60 V DC 2.8.1 BATTERY CAPACITY See section 2.2.5 on page 18 for batteries and battery capacity. Doc. No: D000100-INS-01, Rev I Page 29 of 35

2.8.2 OPERATING CONFIGURATION The table below shows the basic configuration. Replaceable Units Amount Comments Door including Climate Unit 1 Climate only for battery zone Internal battery strings Battery fuse internal (DCCU) Circuit Breaker 4 strings 170 Ah each maximum Maximum four fuses Maximum 405 A totally Maximum 3 x 150 A (F1, F2, F3) Maximum 1 x 250 A (F4) 1 x 20 A (DC powered CLU) 2 x 10 A (AC powered CLU) Depending on battery configuration Depending on battery configuration Three battery strings for external loads One battery string for external load or extension cabinet For the CCU Figure 15 to Figure 19 shows examples of different DC configurations with AC or DC powered CLU, with or without DCCU. Doc. No: D000100-INS-01, Rev I Page 30 of 35

Figure 15 DC configuration with DCCU. AC Powered CLU. Doc. No: D000100-INS-01, Rev I Page 31 of 35

Figure 16 DC configuration without DCCU. AC Powered CLU. Doc. No: D000100-INS-01, Rev I Page 32 of 35

Figure 17 DC configuration with DCCU. DC Powered CLU. Doc. No: D000100-INS-01, Rev I Page 33 of 35

Figure 18 DC configuration without DCCU. DC Powered CLU, Connected to External PSU. Doc. No: D000100-INS-01, Rev I Page 34 of 35

Figure 19 DC configuration without DCCU. DC Powered CLU, Connected to Internal Batteries. 2.8.3 CHARGING AND DISCHARGING CHARACTERISTICS Charging and discharging characteristics are defined and controlled by the control system of the external equipment connected to the cabinet. For more information, please refer to relevant documentation for the external equipment. Doc. No: D000100-INS-01, Rev I Page 35 of 35