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 kΩ

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.