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Terminal Description
Accessory connector (D-sub 25Pin Connector)
NO. Port Name Description Specification I/O
1 NC Non-Connection –
2 RXD2 Serial Data input 2 RS-232C compatible I
3 TXD2 Serial Data output 2 RS-232C compatible O
4 AUX I/O 9 Auxiliary input/output 9 CMOS I/O
5 DI Data signal input Standard load
≧
10 k
Ω
I
6 MI2 External MIC input Standard load 600
Ω
I
7 E Earth –
8 AUX I/O 8 Auxiliary input/output 8 CMOS I/O
9 TXD3 Serial Data output 3 CMOS O
10 RXD3 Serial Data input 3 CMOS I
11 E Earth –
12 AUX I/O 7 Auxiliary input/output 7 CMOS I/O
13 AUX I/O 6 Auxiliary input/output 6 CMOS I/O
14 SB Switched B 13.6V O
15 AUX O 2 Auxiliary output 2 Open Collector O
16 AUX O 1 Auxiliary output 1 Open Collector O
17 AFO RX audio signal output Low Impedance O
18 E Earth –
19 DEO Detected signal output Low Impedance O
20 AUX I/O 5 Auxiliary input/output 5 CMOS I/O
21 AUX I/O 4 Auxiliary input/output 4 CMOS I/O
22 AUX I/O 3 Auxiliary input/output 3 CMOS I/O
23 AUX I/O 2 Auxiliary input/output 2 CMOS I/O
24 AUX I/O 1 Auxiliary input/output 1 CMOS I/O
25 ME MIC earth –
Accessory connector (9Pin Connector)
NO. Port Name Description Specification I/O
1 IGN Ignition sense input High Impedance I
2 ES2 BTL output for external speaker A Standard load 4
Ω
O
3 RS1 Remote speaker switch I
4 HR1 Horn alert signal output 1 1 A max O
5 HR2 Horn alert signal output 2 1
A max O
6 ES1 BTL output for external speaker A Standard load 4
Ω
O
7 OS1 BTL output for external speaker B Standard load 4
Ω
O
8 OS2 BTL output for external speaker B Standard load 4
Ω
O
9 E Earth –
Microphone connector (12pin Connector)
NO. Port Name Description Specification I/O
1 SB Switched B 13.6 V O
2 HK Hook signal input CMOS I
3 ME MIC earth –
4 MIC MIC signal input Standard load 600
Ω
I
5 E Earth –
6 TRD Serial data input / output CMOS I/O
7 KVL Key loader sense input CMOS I
8 DM Serial data input / output for keypad MIC CMOS I/O
9 BLC MIC backlight control signal output CMOS O
10 PTT PTT signal input CMOS I
11 NC Non-Connection –
12 ES2 Audio output for Handset Standard load 4
Ω
O
Antenna Connector
Impeaqdance is 50
Ω
.