Emerson Liebert SiteScan Web Centralized Monitoring and Control Service Manual download pdf

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.

ARCDIAG485 correctly biases the ARCnet 156K baud network independent of the length of the

wiring and offers visual diagnostics of the signal levels.

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

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Liebert Corporation Specification for ARCNET Accessories ARCNET Accessories DESCRIPTION: Designed to ensure the superior performance of ARCn

Liebert Corporation Specification for ARCNET Accessories OPERATING PARAMETERS ARCDIAG485 POWER: 24VAC. 0.3A 50-60 HZ. 7.2VA (Single Class

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Liebert Corporation Specification for ARCNET Accessories MODULE DIMENSIONS AND LAYOUT ENCLOSURE DIMENSIONS DIMENSIONS: Enclosure: 8.45"

Emerson Liebert SiteScan Web Centralized Monitoring and Control Service Manual