Terminal Function
1. Display Unit
Pin No. Name Description
J301 (To MIC Jack)
1 CM Serial data input for keypad MIC.
2 HOOK/RXD Hook signal input/ Serial data input.
3 MIC MIC signal input.
4 ME MIC ground
5 PTT/TXD PTT signal input/ Serial data output.
6 GND Ground
7 SB Power outputs after power switch (13.6V+15%).
8 MBL MIC backlight control signal output. “H”: On, “L”:Off.
J302(To TX/RX UNIT)
1 VCC +5V.
2 BS SB[Power outputs after power switch (13.6V+15%)]
3 VCC +5V.
4 BS SB[Power outputs after power switch (13.6V+15%)]
5 NC NC
6 MICDAT Serial data output for keypad MIC.
7 NC NC
8 ME MIC ground
9 MIC MIC signal output.
10 GND Ground
11 VO Audio input after adjusting by k301
12 PSW Power switch control signal output
13 RXD2 Serial data output
14 TXD2 Serial data input
15 VI Audio output after adjusting by k301
16 TYPE
Model select
（
H:TM-610;L:TM610
）
17 P4 SW position signal output 4
18 P3 SW position signal output 3
19 P2 SW position signal output 2
20 P1 SW position signal output 1
21 SLED Scan indicator
22 PLED Low power indicator
23 RLED Transmit indicator control
24 GLED Receive indicator control
25 LED1 Channel display control
26 LED7 Channel display control
27 LED0 Channel display control
28 LED2 Channel display control
29 LED5 Channel display control
30 LED3 Channel display control
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