Motorola EX500 Basic Service Manual page 60

3-42
To RIB Box
(25 position female connector)
EXT SPKR +
EXT SPKR -
EXT MIC
OPT SEL 2
OPT SEL 1
RX DATA
TX DATA
XMIT/RX AUDIO
BOOT CTRL
P1
TO RADIO
UNIVERSAL
CONNECTOR
1
2
3
N/C
4
5
6
7
GND
8
9
10
RSSI
11
12
N/C 13
Figure 3-34 Wiring of the Connectors
P2
TO RADIO
TEST SET
RLN4460
1
2 AUDIO -
5 AUDIO +
7
8 MIC AUDIO
9
15
16 GND
18 VOL CTRL
19 DISC
20 PTT
21 OPT SEL INT/EXT
22
25 BOOT CTRL
J1
TO RIB
RLN4008
1 GND
4 BIAS
10K
11 BUS -
15 BUS +
25 BOOT CTRL
Programming/Test Cable
To Test Box
(25 position male connector)