Emerson Liebert SiteLink-12 User Manual

Specification for SiteLink-12
DESCRIPTION: The SiteLink-12 is a 32-bit microprocessor-based communications device that provides
an interface for up to twelve Liebert Unit Controllers (IGM’s). The SiteLink-12 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. Twelve
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: 12”H x 14.25" W x 2.85" D
(Painted steel) 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)
Twelve (12) 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 ARC156 network
BATTERY: Seven-year lithium battery provides a minimum or 10,000 hours or data
retention during power outages.
Liebert Corporation Page 1 of 5 SL-27216 Rev. 4; 7/03

Emerson Liebert SiteLink-12 Specifications

General

Model	Liebert SiteLink-12
Category	Network Hardware
Input Voltage	100-240 VAC
Frequency	50/60 Hz
Network Interface	10/100Base-T Ethernet
Communication Ports	RS-232, RS-485
Operating Temperature	0 to 50 °C
Operating Humidity	0 to 95% non-condensing
Protocols Supported	SNMP

Summary

Product Information

Description and Overview

Details the SiteLink-12 as a 32-bit microprocessor-based communications device for Liebert Unit Controllers.

Physical Dimensions

Provides module and enclosure dimensions in both inches and centimeters.

Power Specifications

Details power input requirements, consumption, and transformer availability.

Environmental Operating Conditions

Specifies the operating temperature and humidity range.

Communication Ports and Protocols

Outlines CMnet, Portal, Access, and EIA-422 ports and their communication capabilities.

Memory and Storage

Details the available Flash memory and non-volatile battery-backed RAM.

Protection and Battery

Covers voltage, current, ESD protection, and the lithium battery backup.

Certifications and Listings

Product Listings

Lists UL, cUL, and FCC certifications for the SiteLink-12.

Diagnostic Indicators

LED Functions

Explains the purpose of each diagnostic LED on the module.

Module Layout and Dimensions

Physical Layout Diagram

Illustrates the physical arrangement of ports, switches, and LEDs on the module.

Communications Wiring

CMnet Wiring Diagram

Shows the wiring connection for the CMnet communication port with recommended cable.

Enclosure Dimensions

Enclosure Size and Features

Details the enclosure's external dimensions and mounting hole pattern.

Enclosure Mounting

Wall Mounting Diagram

Provides dimensions and details for mounting the enclosure on a wall.

Detail A - Mounting Slot

Shows specific dimensions for a keyhole mounting slot.

Enclosure Mounting

Floor Mounting Diagram

Provides dimensions and details for mounting the enclosure on the floor.

Detail B - Mounting Holes

Shows specific dimensions for floor mounting holes.