Installation Instructions

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Building Building

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P/N 315-034904C-3

OPERATION The Model SLIM Loop Isolator Module from Siemens Industry, Inc. isolates short

circuits on FS-250C analog loops. By placing devices between SLIMs during installa-

tion, a short in the wiring within that group is disconnected from the rest of the loop.

The remainder of the devices continue to operate. The SLIM operates in both Class A

and Class B circuits.

A yellow LED flashes when a device detects a short circuit. The SLIM then isolates

that part of the loop. When the short is removed, the SLIM automatically restores

the loop to normal operation. The SLIM does not have a loop address and therefore

does not require address programming nor does it reduce the loop capacity below

252 devices.

Remove all system power before installation, first the battery and then the AC.

ELECTRICAL RATINGS Voltage: 24 Vdc

Current: 1mA max

INSTALLATION The SLIM is a polarity insensitive module. Refer to Figure 1 for the location of the

two input terminals, two output terminals and earth ground. Line 1 and Line 2 can be

either line of the loop.

Terminal Number Description

1 In — Line 1

2 In — Line 2

3 Out — Line 1

4 Out — Line 2

5 Earth Ground

Mechanical Installation (See Figure 2)

• Use a standard 3 1/2-inch deep, double gang electrical

switchbox or a 4-inch square electrical box that is 2 1/8 inches

deep.

• Connect the field wiring. Press the SLIM into the box and

fasten the module plate to the box.

• Cover the module front plate with the plate supplied and

fasten with screws supplied.

Figure 1

SLIM-1 Module

Loop Isolator Module

Installation Instructions

Model SLIM

SWITCHPLATE

5-INCHES SQUARE

(SUPPLIED)

SWITCHPLATE

5-INCHES SQUARE

(SUPPLIED)

4-INCH SQUARE BOX

2 1/8-INCHES DEEP

DOUBLE GANG BOX

3 1/2-INCHES DEEP

Figure 2

Mounting the SLIM

Summary of content (2 pages)

PAGE 1
Installation Instructions Model SLIM Loop Isolator Module OPERATION The Model SLIM Loop Isolator Module from Siemens Industry, Inc. isolates short circuits on FS-250C analog loops. By placing devices between SLIMs during installation, a short in the wiring within that group is disconnected from the rest of the loop. The remainder of the devices continue to operate. The SLIM operates in both Class A and Class B circuits. A yellow LED flashes when a device detects a short circuit.
PAGE 2
The SLIM may be used in two circuit configurations as follows: Class B 1. All wiring must comply with national and local codes. 2. In order to provide adequate protection, it is recommended that you do not install more than 20 devices on a single SLIM. 3. Minimum wire gauge is 18 AWG. 4. The total wire resistance (both wires) between SLIMs cannot exceed 20 ohms. 5. Do not install more than 15 SLIMs per FDLC loop. 6. All circuits are supervised. 7.