Service Manual

MM-E 2072-09333-00
2-19
2-3.2 Cooling Tray Connectors
Table 2-6. Micom-Z 44-Pin/25-Pin Adapter Cable Wiring Diagram
44-Pin
Connector
25-Pin
Connector
44-Pin
Connector
25-Pin
Connector
1 1 43 14
44 2 15 15
3 3 16 16
4 4 17 17
5 5 18 18
6 6 19 19
7 7 20 20
8 8 21 21
9 9 22 22
10 10 23 23
11 11 24 24
12 12 25 25
13 13
Table 2-7. Cooling Tray 25-Pin ACCESSORY Connector Pin Functions
Pin Designation Description
1 SPKR-
Differential output to the external 8Ω, 5W speaker
2 EXT RX DATA+
Baseband output (0 dBm, 600Ω) to external device, unsquelched
3 SPKR+
Differential output to the external 8Ω, 5W speaker
4 EXT RX AUDIO+
5 EXT RX AUDIO-
Differential receive audio output (0 dBm, 600Ω; not affected by the
volume control, but controlled by the squelch)
6 EXT TX AUDIO+
7 EXT TX AUDIO-
Differential transmit input (600Ω input impedance; 0 dBm is required for
full power)
8 PTT IN VOICE Transmission command (short to ground) for voice signals
9 PTT IN DATA Transmission command (short to ground) for data signals
10 PTT IN CW Transmission command (short to ground) for CW (Morse) signals
11 SW A+ Primary DC voltage current limited output (max. 1A)
12 DSI/KW CC
BDM – Data serial in/optional RF power amplifier channel change
13 KW ON/OFF Optional RF power amplifier power on/off output
14 EXT RX DATA-
Baseband output (0 dBm, 600Ω) to external device, unsquelched
15 RXA Receive input (point-to-point protocol to host/HLC)
16 TXA Transmit output (point-to-point protocol to host/HLC)
17 EX RESET External RESET input (for BDM)
18 GND Ground
19 KW PTT OUT PTT output to optional RF power amplifier (active low)