Kenwood TKR-D710 Service Manual page 68

TKR-D710
CONTROL I/O 25 pin D-sub Connector
Pin Signal
Pin Name I/O
No
1 NC (RSSI) -
2 RXD 2 I Digital
3 TXD 2 O Digital
4 AI1 I Digital
5 AI2 I Digital
6 AI3 I Digital
7 DG -
8 TD -
9 TA -
10 RD -
11 RA -
12 RXG -
13 SPM I Digital
14 BER_CLK O Digital
15 EMON -
16 EPTT -
17 SC O Digital
18 BER_DAT O Digital
68
TERMINAL FUNCTION
Signal Summary
Type
- -
Asynchronous
Receive Data
Asynchronous
Send Data
Programmable
Function Input 1
/CMOS
Programmable
Function Input 2
/CMOS
Programmable
Function Input 3
/CMOS
GND Digital GND
- Non-use
- Non-use
- Non-use
- Non-use
GND RX Signal GND
Speaker Mute
/CMOS
for Bit Error Rate
Clock
- Non-use
- Non-use
Squelch Control
/CMOS
for Bit Error Rate
Data
Specifi cation Min
- -
- –15
- ±5.0
VIH 0.8Vcc
VIL VSS
Input impedance
VIH 0.8Vcc
VIL VSS
Input impedance
VIH 0.8Vcc
VIL VSS
Input impedance
- -
- -
- -
- -
- -
- -
VIH 0.7Vcc1
VIL -
Input impedance
VOH (IO=–20µA) 4.4
VOL (IO=20µA)
- -
- -
VOH(IO=-0.5mA) 4.4
VOL(IO=0.5mA)
VOH (IO=–20µA) 4.4
VOL (IO=20µA)
Typ Max Unit
- - -
- +15 V
±9.0 V
Vcc V
Vcc=5V±2%
0.2Vcc V
47k Ohm 47k ohm PU to Vcc
Vcc V
Vcc=5V±2%
0.2Vcc V
47k Ohm 47k ohm PU to Vcc
Vcc V
Vcc=5V±2%
0.2Vcc V
47k Ohm 47k ohm PU to Vcc
- - -
- - -
- - -
- - -
- - -
- - -
- 5.5 V
Vcc1=3.3V±2%
- 0.3Vcc1 V
47k Ohm
4.5 V 47k ohm PU to Vcc
0 0.1 V
- - -
- - -
4.5 4.6 V
1.1 V
47k ohm PU to Vcc
4.5 V
0 0.1 V
Remarks
conform to
RS-232C
RL=3k
conform to
RS-232C