Service manual

Installation: Electrical Connections 2-23

Table 2-6. J5 System Connector, Row A Pins

Pin # Pin Assignment

Input/

Output

To/From Signal Characteristics

1 Reserved O – –

2 Reserved O J1-C31, J2-C31 –

3 N/C O – –

4 AC Fail O P8-5, J1-C29, J2-C29, J3-C24 TTL output, active high

5 Reserved I J1-C28, J2-C28 –

6 Reserved I J1-C27, J2-C27 –

7 Reserved I J1-C26, J2-C26 –

8 Reserved I J1-C25, J2-C25 –

9 Reserved I J1-C24, J2-C24 –

10 Reserved O J1-C23, J2-C23 –

11 Reserved O J1-C22, J2-C22 –

12 Reserved O J1-B25, J2-B25 –

13 Antenna Relay O P10-1, J3-C26 OCO, 200 mA, active low

14 Reserved O J3-C19 –

15 N/C – – –

16 N/C – – –

17 Reserved I J3-C16 –

18 Accessory 14.2 VDC O P8 pins 3, 4 (through F2) +14.2 VDC

19 GND – Station ground –

20 5 VDC O P8 pins 7, 8 +5.1 ± 0.25 VDC

21 Reserved O J3-C12 –

22 Spare I J1-C11, J2-C11

23 N/C – – –

24 N/C – – –

25 N/C – – –

26 Ext PTT- I J1-C7, J2-C7 Opto-Isolated PTT Input

27 GND – Station ground –

28 Reserved I/O J1-C6, J2-C6 –

29 Ext PTT+ I J1-C5, J2-C5 Opto-Isolated PTT Input

30 AC Fail Relay (NO) O J1-C4, J2-C4 Normally Open Relay Contact

31 GND – Station ground –

32 Accessory 14.2 VDC O P8 pins 3, 4 (through F2) +14.2 VDC