Emerson Liebert SiteScan Web Centralized Monitoring and Control Technical Specifications
Contents
1. Liebert Corporation Specification for ARCNET Accessories ARCNET Accessories DESCRIPTION Designed to ensure the superior performance of ARCnet 156K baud and or MS TP network in the field these ancillary network boards serve to properly terminate bias protect and repeat data transmitted over the twisted pair EIA 485 network Based on a native BACnet architecture the Liebert system uses ARCnet 156K baud as the high speed building control network to connect SiteLink Site I O and Site TPI modules with a family of SiteGate routers Each device is mounted in its own steel enclosure The ARCDIAG485 and ARCREP485 require external 24VAC power supplies a ARCDIAG485 correctly biases the ARCnet 156K baud network independent of the length of the wiring and offers visual diagnostics of the signal levels Q ARCPROT485 protects controllers residing on the ARCnet 156K baud or MS TP network within 250 ft 76m from induced electrical surges on the twisted pair wiring ARCREP485 creates a new network segment by amplifying and re transmitting data extending the length of the ARCNET 156K baud or MS TP communication bus Required for more than 32 control modules to be connected on one network A termination resistor is used to effectively terminate every ARCNET wiring segment preventing end of line reflections and noise Page 1 of 3 SL 27110 Rev 1 11 02 OPERATING PARAMETERS Oo ARCDIAG485 POWER 24VAC 0 3A 50 60 HZ 7 2VA Sing2. le Class 2 Source Only 100VA or less TEMPERATURE RANGE 0 to 130 F 17 8 to 54 4 C OPERATING HUMIDITY RANGE 10 90 relative humidity non condensing ARCPROT485 POWER NONE TEMPERATURE RANGE 20 to 140 F 28 9 to 60 C OPERATING HUMIDITY RANGE 10 90 relative humidity non condensing ARCREP485 POWER 24VAC 0 25A 50 60 HZ 6 0VA Single Class 2 Source Only 100VA or less TEMPERATURE RANGE 0 to 130 F 17 8 to 54 4 C OPERATING HUMIDITY RANGE 5 95 relative humidity non condensing PORTS Net A and B are both EIA 485 optically isolated Page 2 of 3 SL 27110 Rev 1 11 02 Liebert Corporation Specification for ARCNET Accessories MODULE DIMENSIONS AND LAYOUT ENCLOSURE DIMENSIONS DIMENSIONS Enclosure 8 45 H x 8 45 W x 2 98 D Steel 214 6mm x 214 6mm x 75 7mm Mounting 7 Hx7 W 177 8mm x 177 8mm Side View Page 3 of 3 SL 27110 Rev 1 11 02
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