Clear-Com KB-702GM - Manual (Page 14)

K B - 7 0 2 / K B - 7 0 2 G M T W O - C H A N N E L S P E A K E R 1 - 8
Figure 1-5: Two-Channel Cable Wiring
17. Program Input: A 3-terminal plug-on connector provides the program
input to the station. Program is fed to the headset and speaker. The level to
the speaker or headset is controlled by the program level control. The
program input accepts a balanced or unbalanced line-level audio signal.
If this input is connected to the stage announce (SA) output of a main
station it can be used as a paging input. Since the level of this input is
independently adjustable from the intercom audio volume, it can be used
to override the intercom audio.
The pinout of the program input connector is as follows:
Pin 1 --- Ground (shield)
Pin 2 --- + Signal
Pin 3 --- - Signal
Figure 1-6: Program-Input Cable Wiring
18. Option Board Jumpers: The three jumper plugs P1, P2, and P3 must be
installed when optional modules are not used. When the optional
EB7-4W four-wire or EB7-TW modules are used, both P1 and P3 must
be removed. In the KB-702GM, P2 is replaced by the VOX module. Save
these jumper plugs for possible future use after removing them. The
KB-702 will not operate without either these jumper plugs or the
optional modules installed.
Two Channel
Cable Wiring
KB-702 Intercom
Connector
XLR
Connectors
Channel A
Channel B
Pin 1
Pin 5
1
3
2
1
3
2
Program Input
Cable Wiring
KB-702 Program
Input Connector
XLR
Connector
Pin 1
1
3
2
Pin 3