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32
Connections
13 CONNECTIONS
13.1 Input/Output rear connector
The following table outlines the connections from the rear
Input/Output
(DB25) connector:
N.
Signal name
Notes
1
AUX OUT
2
-
Not connected
3
EXT SPEAKER
4
FLAT UN-SQ RX AUDIO
5
DE-EMPH-SQ RX AUDIO
6
RX MUTE INPUT
7
TX AF IN
8
PTT OUTPUT
9
EXTERNAL PTT
10
SELCAL VALID
11
RSSI LEVEL
12
CDS SIGNAL
13
HANG UP
14
GND
Grounded
15
GND
Grounded
25
13
14
1
16
EXT S
17
Spare 2
Additional contact for special use
18
Spare 1
Additional contact for special use
19
Output 12V 100 mA max.
20
Backlight control input
21
INPUT/OUTPUT 2
22
INPUT/OUTPUT 1
23
External alarm input
24
Emergency switch - input
25
Ignition sense input
Faulty connections may seriously damage your radio. Before
connecting any device, consult the service manual and your
CTE International technical office.
Содержание HM135S
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