Specification for SiteLink-4 DESCRIPTION: The SiteLink-4 is a 32 bit microprocessor-based communications device that provides an interface for up to four Liebert Unit Controllers (IGM’s). The SiteLink-4 communicates to either the SiteScan Monitoring System, or a third party software program utilizing a designated open standard protocol (i.e. Modbus or BACnet). This device communicates to the SiteScan Monitoring System via a twisted pair called the ARC156 network through an EIA-485 port at either 156K / 9600 or 38.4kbps baud. It communicates to the third party software monitoring system via a 9-pin DTE male EIA-232 connector (Portal Interface) or at the 5 pin EIA485 port communicating at either 9600bps or 38.4kbps baud. Four EIA-422 ports are provided to connect Liebert Information Gathering Modules. DIMENSIONS: Module: 7 1/2" H x 11 1/4" W 19.05cm H x 28.58cm W Enclosure: (painted steel) 12”H x 14.25" W x 2.85" D 419.1mm x 301.3mm x 78.6mm See Enclosure Diagrams for mounting options. POWER: 24VAC ± 10%, 50-60 Hz., 7.2VA power consumption (120/24VAC 40VA transformer available). ENVIRONMENTAL OPERATING RANGE: 0° to 130° F (-17.8° to 54.4° C), 10 to 90% relative humidity, non-condensing COMMUNICATION: CMnet EIA-485 Port - Control Module network screw terminals Switch selectable baud rates ARC156 / 9600 or 38.4bps Recommended wire is: MAGNUM Cable pn A3-ARC-156-2 Two (2) Portal Interface – One EIA-232, One EIA-485 2 / 4 wire (for Third Party software selectable baud rate, 9600bps or 38.4kbps One (1) Access port (for diagnostics) Four (4) EIA-422 Ports (for Liebert unit connection) - screw terminal MEMORY: 1024 kB Flash memory and 1024 kB non-volatile battery-backed RAM. PROTECTION: Voltage, current, and ESD protection on incoming power and CMnet. Liebert Corporation Page 1 of 5 SL-27213 Rev. 4; 7/03 Specification for SiteLink-4 BATTERY: Seven-year lithium battery provides a minimum or 10,000 hours or data retention during power outages. LISTED: UL 916 (PAZX), cUL C22.2 No. 205-M1983 (PAZX7), FCC Part 15 – Subpart B - Class A. DIAGNOSTIC LED's: Power: Run: Error: CMnet Transmit: CMnet Receive: Port A Transmit: Port A Receive: Port B Transmit: Port B Receive: Unit (IGM Port) Transmit: Unit (IGM Port) Receive: lights when power is being supplied to the module. flashes to indicate a normal condition lights when an error is detected lights when the SiteLink-4 transmits data over the ARC156 network lights when the SiteLink-4 receives data from the AERC156 network lights when the SiteLink-4 transmits data over Port A lights when the SiteLink-4 receives data from Port A lights when the SiteLink-4 transmits data over Port B lights when the SiteLink-4 receives data from Port B lights when the SiteLink-4 transmits data over an IGM port lights when the SiteLink-4 receives data from an IGM port MODULE DIMENSIONS AND LAYOUT Format Button 1" 2.54cm Port A Configuration Jumpers Port A Port B Options Format Power Switch Rotary Address Switches 10's 1 's Power Module Address Grou nd On n/c 485-2 w 485-4 w Off 2 4 Vac Gnd and 24VAC Terminals Class 2 24Vac, 50-60 Hz 12VA, 0.5A Use Copper Conductors Only E IA-232 E IA-485 Caution 2 wire 4 wire E IA-232 Net+ T x + Tx Net- Tx - Rx n/c Rx + DTR n/c Rx - DCD SiteLink-4 C ommunica tio ns Port A S igna l Ground TM Liebert To Reduce The Risk of Fire or Electrical Shock, Do Not Interconnect the Outputs of Different Class 2 Circuits. Auxiliary Device Port S hie ld CMnet Net - O pen Pro tocol Comm unications Port B Net + Access Port Run Error CMnet receive CMnet transmit Port A receive Port A transmit Port B receive Port B transmit Aux1 Aux2 LEDs Open Energy Management Equipment R 88FO E143900 TYPE: 003212 Unit 2 Unit 1 Unit 3 Keypad/ Display Port CMnet Port 7 1/2" 19.05cm Access Port ARC15 6K 96 00 /38 .4 K CMnet Baud Rate Jumper Unit 4 Tx Rx Tx Rx Tx Rx Tx Rx + - + - + - + - 11 1/4" 28.58cm Liebert Corporation Page 2 of 5 SL-27213 Rev. 4; 7/03 Specification for SiteLink-4 COMMUNICATIONS WIRING DIAGRAM Shield CMnet Net Net + Net - Ne t + 18-24 ga Twisted - Pair, Shielded, Low Impedance, Low Capacitance Recommended wire is: Magnum Cable A3-ARC-156-2 ENCLOSURE DIMENSIONS Liebert Corporation Page 3 of 5 SL-27213 Rev. 4; 7/03 Specification for SiteLink-4 Enclosure Wall Mounting Liebert Corporation Page 4 of 5 SL-27213 Rev. 4; 7/03 Specification for SiteLink-4 Enclosure Floor Mounting Liebert Corporation Page 5 of 5 SL-27213 Rev. 4; 7/03