Clear-Com RM-702 User Manual

Page 28

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R M - 7 0 2 T W O - C H A N N E L R E M O T E S T A T I O N

2 - 1 6

for the duration of the talk signal. See the earlier section in this chapter,
“Re-setting Program Interrupt Options,” for more information on setting
this option.

To Connect To The Program Input: The program input of the RM-702
is available in the DB-15 accessory connector on the rear panel.

Figure 2-13: Connecting Program Sources

Connect a balanced input to pins #8 and #15 with the shield connected to
pin #7.

To connect an unbalanced input, connect the signal to pin #8 and connect the
shield to pins #15 and #7.

Connecting Party-Line Products As Program Sources: If other Clear-Com
products (such as an AC-701 telephone interface) are to be used as a program
source directly, use the following interconnection cable.

Pin #14 of the DB-15 accessory connector provides +30 VDC to power the
external device. Connecting pins #7 and #15 together unbalances the program
input. The output from the party line device is connected to pin #8 with a
1KOhm load to provide a partial termination.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

“ACCESSORY” CONNECTOR
DB-15F

Power (+30 VDC)

GND

– Program Input

+ Program Input

Viewed from the
rear of the unit

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