09
Accessories Connections
External Speaker
If you plan to use an external speaker, choose a speaker with an impedance of 8*. The external speaker jack accepts a
3.5mm mono (2-conductor) plug.
Note: External speaker output adopts double port BTL. Please be aware that the speaker can't connect to the ground oth-
erwise the speaker will fault. The wrong connection way is as below:
Error
Ground
10
Microphone
For voice communications connect a microphone equipped with an 8-pin modular plug into the modular socket on the side
of the main unit. Press firmly on the plug until the locking tab clicks. Attach the supplied microphone hanger in an approp-
riate location using the screws included in the screw set.
Microphone connector
MIC
1
2
3
4
5 6
7
8
9
0
#
A
B
C
D
P
1
P
2
P
3
P
4
Antenna
External speaker
B
A
LOW
V/M
C
HM
SCN
LOW
V/M
SCN
HM
D
E
F
MHz
RPT
TONE
SUB
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