CLEAR KB-702GM User Manual
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 S T A T I O N S
1 - 5
Mic Type --- Dynamic; see technical specifications for details
Headphone --- Dynamic; see technical specifications for details
The wiring of the headset is to be as follows:
Pin 1 --- Mic common
Pin 2 --- Mic hot
Pin 3 --- Headphone common
Pin 4 --- Headphone hot
The mic and headphone wiring in the headset cord must be individually
shielded. Do not connect pins #1 and #3 together. Headset extension cords
or headset “Y” cables are not recommended because they will increase
crosstalk between channels.
shielded. Do not connect pins #1 and #3 together. Headset extension cords
or headset “Y” cables are not recommended because they will increase
crosstalk between channels.
11. Panel Mic Connector (KB-702GM only): Clear-Com recommends the
GM-9 and GM-18 plug-in panel microphones for use with the KB-702GM.
The GM-9 is 9 in. (23.04 cm) long and the GM-18 is 18 in. (46.08 cm)
long. Both are the electret type. The 1/4 in. (0.64 cm)phone jack on the
microphone mates with the panel mic receptacle on the front panel of the
KB-702GM.
The GM-9 is 9 in. (23.04 cm) long and the GM-18 is 18 in. (46.08 cm)
long. Both are the electret type. The 1/4 in. (0.64 cm)phone jack on the
microphone mates with the panel mic receptacle on the front panel of the
KB-702GM.
To install a GM-9 or GM-18 microphone, use the following steps:
1. Remove the plastic plug from the jack, if present.
2. Check and unscrew the set screw in the mic mounting flange to make
sure it is clear of the threads in the bushing.
3. Screw the microphone into the bushing hand tight.
4. Turn the set screw on top of the mic mounting flange clockwise to lock
the microphone in place.
12. VOX Control (KB-702GM only): When the panel microphone is selected
on the KB-702GM, the VOX control should be adjusted for proper
operation. This control is located to the right of the panel mic connector.
Use a narrow flat blade screwdriver such as a greenie or tweaker for this
adjustment. When the adjustment is correctly set, the VOX light illuminates
amber when speaking into the panel microphone. Turning the control
clockwise makes the KB-702GM more sensitive to your voice. The VOX
feature can be disabled by turning the VOX control fully counterclockwise.
operation. This control is located to the right of the panel mic connector.
Use a narrow flat blade screwdriver such as a greenie or tweaker for this
adjustment. When the adjustment is correctly set, the VOX light illuminates
amber when speaking into the panel microphone. Turning the control
clockwise makes the KB-702GM more sensitive to your voice. The VOX
feature can be disabled by turning the VOX control fully counterclockwise.
INTERNAL ADJUSTMENTS AND CONNECTIONS
The controls and connectors found inside the KB-702 are shown in the
following figure and described by the following text. The controls can be
accessed without completely removing the panel from its wall box or V-Box
enclosure by removing the top two screws and loosening the bottom two screws a
few turns. Then lean the panel out from the wall. The controls will then be
accessible as shown in the lower view of Figure 1-3. The numbers in the left
column of the following descriptions refer to Figure 1-3.
following figure and described by the following text. The controls can be
accessed without completely removing the panel from its wall box or V-Box
enclosure by removing the top two screws and loosening the bottom two screws a
few turns. Then lean the panel out from the wall. The controls will then be
accessible as shown in the lower view of Figure 1-3. The numbers in the left
column of the following descriptions refer to Figure 1-3.