25-Pin D-Sub Acc Connector - Kenwood TK-2180 Modification Information

1.3 25-pin D-Sub ACC
Connector
(TK-7180/ 8180 only)
The 25-pin ACC connector is located on the rear panel of
the TK-7180/ 8180 transceivers and you can connect
external devices, such as the KDS-100, to this connector.
Pin Signal
Input/ Output
number name
1 NC/ RSSI
2 RXD1 Input
3 TXD1 Output
4 AUX I/O 9 Input/ Output
5 DI Input
6 MI2 Input
7 GND
8 AUX I/O 8 Input/ Output AUX I/O 8: Same Level as AUX I/O 9.
9 TXD2 Output
10 RXD2 Input
11 GND
12 AUX I/O 7 Input/ Output Auxiliary I/O 7: Same Level as AUX I/O 9.
13 AUX I/O 6 Input/ Output Auxiliary I/O 6: Same Level as AUX I/O 9.
14 SB
AUX OUT
15 Output
2
AUX OUT
16 Output
1
17 AFO Output
18 GND
19 DEO Output
20 AUX I/O 5 Input/ Output Auxiliary I/O 5: Same Level as AUX I/O 9.
21 AUX I/O 4 Input/ Output Auxiliary I/O 4: Same Level as AUX I/O 9.
22 AUX I/O 3 Input/ Output Auxiliary I/O 3: Same Level as AUX I/O 9.
23 AUX I/O 2 Input/ Output Auxiliary I/O 2: Same Level as AUX I/O 9.
24 AUX I/O 1 Input/ Output Auxiliary I/O 1: Same Level as AUX I/O 9.
25 ME
Version: 1.13 USA
No Connection.
-
RSSI can be sent after modification; Output level 0.8 - 2.3V).
Serial Data Input 1
RS-232C Level, Input voltage range +/-30Vmax,
L=less than 0.4V, H=more than 2.4V Zi=more than 5kohm
Serial Data Output 1
RS-232C Level, L=less than -5V, H=more than 5V Zo=more than 5kohm
Auxiliary I/O 9
Input: Active Low with 47kohm Pull-Up to 5V, L=less than 0.8V, H=more than 4.2V
Output: Active Low with 47kohm Pull-Up to 5V, 0.2mAmax, L=less than 0.3V, H=more than 4.8V
EMF
Data Signal Input
60% of System Deviation with 2Vp-p input (Data input level is adjustable),
Input Impedance=10kohm or more, DC coupled, Frequency Response =+2/-3dB,
External Mic Input: 60% Deviation with 1kHz 5.0+/-2.5mV Input signal
- Ground
Serial Data Output 2:
C MOS Level, L=less than 0.7V H=more than 4.2V with 25kohm load, Zo=more than 1kohm
Serial Data Input 2
C MOS Level, Input voltage range=+5/0 Vmax, L=less than 0.8V H=more than 4.2V
- Ground
Power Output in conjunction with the Power Switch
-
DC 13.6V +/-15% 2.0Amax
Auxiliary OUT 2
Active Low, Open collector 500mAmax, Defualt=None, L=less than 0.3V
Auxiliary OUT 1
Active Low, Open collector 500mAmax, Defualt=None, L=less than 0.3V
RX Filtered Audio Output
DC coupled, AF low level output 700mVp-p typ with standard modulated signal receiving.
- Ground
Detected Signal Output
DC coupled, 740 mVp-p typ with standard moduration signal, AF output level is adjustable.
- Mic Ground
Modification Information
Figure 1-2 25-pin D-Sub ACC Connector
Table 1-3 25-pin D-Sub ACC Connector Pin Assignment
Description
1 TERMINAL FUNCTION
3