4-1-3
Connector Description
23
Accessory connector
Pin No. Pin Name
Description
Specification
1
NC
No connection
—
2
TXD
Output terminal for serial communication data.
—
3
RXD
Input terminal for serial communication data.
—
4
RTS
Output terminal for request-to-send data.
—
5
CTS
Input terminal for clear-to-send data.
—
6
NC
No connection
—
7
GND
Serial/digital signal ground
—
8
MOD IN
Modulator input from an external terminal unit.
Input level: 300 mV rms
9
DISC OUT
Output terminal for AF signals from the AF detector circuit.
Output level is fixed, regardless of [AF] control.
Output level: 300 mV rms
10
EXT. D/A The desired function can be assigned.*
(Default: Null)
—
11
VCC
13.6 V DC output
Output current: Less than 1 A
12
EXT. A/D Customize A/D input (Not used)
—
13
NC
No connection
—
14
GND
Ground
—
15
EXT.I/O 15 The desired function can be assigned.*
(Default: Null)
+5 V pull up, Active=L
16
EXT.I/O 16 The desired function can be assigned.*
(Default: P0 Monitor Output)
+5 V pull up, Active=L
17
EXT.I/O 17 The desired function can be assigned.*
(Default: Busy Output)
+5 V pull up, Active=L
18
EXT.I/O 18 The desired function can be assigned.*
(Default: Null)
+5 V pull up, Active=L
19
EXT.I/O 19 The desired function can be assigned.*
(Default: EPTT Input)
+5 V pull up, Active=L
20
DATA IN
Input terminal for data.
—
21
EXT.I/O 21 The desired function can be assigned.*
(Default: analogue Audible Output)
+5 V pull up, Active=L
22
AF OUT
The AF detector Output.
—
23
EXT.I/O 23 The desired function can be assigned.*
(Default: Mic Mute Output)
+5 V pull up, Active=L
24
EXT.I/O 24 The desired function can be assigned.*
(Default: Null)
+5 V pull up, Active=L
25
EXT.I/O 25 The desired function can be assigned.*
(Default: Mic Hanger Output)
+5 V pull up, Active=L
* The desired function can be assigned using the optional CS-FR5100 cloning software. Ask your dealer for details.
