For-22 4-wire/radio interface wiring, External audio devices, For-22 4-wire/radio interface wiring -20 – Clear-Com Eclipse-Omega User Manual

Page 50: External audio devices -20

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Clear-Com Communication Systems

Eclipse Matrix Installation Instruction Manual

4 - 2 0

FOR-22 4-WIRE/RADIO INTERFACE WIRING

The FOR-22 4-wire/radio interface connects two external 4-wire
circuits to the matrix. Camera intercoms, two-way radios, microwave
and satellite links, IFBs, and program audio in and out are candidates
for use with the FOR-22.

A FOR-22 interface connects to an Eclipse matrix through the two
RJ-45 connectors on the IMF-3 or IMF-102 rear panel assembly to
which the FOR-22 is connected. One RJ-45 connector is for the first
channel of the interface. The second RJ-45 connector is for the second
channel.

The user side of the FOR-22 for each channel appears on a DB-9M
connector on the rear of the IMF-3 for IMF-102 frame. Figure 4-14
shows the pinout of either one of these connectors. Each channel is
identical.

Figure 4-14: Pinout of the DB-9M I/O Connectors for FOR-22s

The following sections describe how to wire for the various type of
inputs and outputs available on this connector:

• External audio devices

• Call signal input

• Relay contacts.

Note: Shielded cable should be used.

External Audio Devices

Connect external audio devices to the FOR-22 ports through the two
DB-9M connectors labeled “I/O” on the rear panel. Both audio input
and output are transformer isolated. For more information on the

Audio Input

Logic Input (+/- 4 to 50 V)

Relay Normally Open

Audio Output

Audio Output

Audio Input

Relay Normally Closed

Relay Wiper

Logic Input (+/- 4 to 50 V)

1

2

9

8

7

6

5

4

3

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