Clear-Com RM-702 - Manual (Page 28)

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