Emerson SiteLink-4 User Manual

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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:	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)

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

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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:	lights when power is being supplied to the module.
Run:	flashes to indicate a normal condition
Error:	lights when an error is detected
CMnet Transmit:	lights when the SiteLink-4 transmits data over the ARC156 network
CMnet Receive:	lights when the SiteLink-4 receives data from the AERC156 network
Port A Transmit:	lights when the SiteLink-4 transmits data over Port A
Port A Receive:	lights when the SiteLink-4 receives data from Port A
Port B Transmit:	lights when the SiteLink-4 transmits data over Port B
Port B Receive:	lights when the SiteLink-4 receives data from Port B
Unit (IGM Port) Transmit:	lights when the SiteLink-4 transmits data over an IGM port
Unit (IGM Port) Receive:	lights when the SiteLink-4 receives data from an IGM port

MODULE DIMENSIONS AND LAYOUT

Format

Power

Button

Rotary Address

Switch

Switches

Gnd and

24VAC

2.54cm

Options

Format

10's 1's

Module

Power

Ground

Terminals

Address

Off

24 Vac

n/c

Class 2

485-2w

24Vac, 50-60 Hz

Port A

485-4w

12VA, 0.5A

Use Copper

Configuration

E IA-232

Conductors Only

E IA-485

Caution

2 wire 4 wire E IA-232

To Reduce The

Jumpers

Risk of Fire or

Net+

Tx +

Electrical

Keypad/

Net-

Tx -

SiteLink-4

Shock,

Communications

Do Not

Auxiliary

Interconnect

n/c

Rx +

DTR

Port A

the Outputs of

Device

Display Port

Different Class

Port A

n/c

Rx -

DCD

2 Circuits.

Port

S ignal Ground

Liebert

7 1/2"

S hield

CMnet Port

CMnet

Net -

Open Protocol

Net +

19.05cm

Port B

Communications

Port B

Access Port

Access

Port

Run

Open Energy

ARC156K

Error

Management Equipment

9600/38.4K

CMnet receive

CMnet Baud

CMnet transmit

Port A receive

LEDs

Port A transmit

Port B receive

88FO

Port B transmit

Rate Jumper

Aux1

E143900

Aux2

TYPE: 003212

Unit 1

Unit 2

Unit 3

Unit 4

11 1/4"

28.58cm

Liebert Corporation

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SL-27213 Rev. 4; 7/03

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