Codan Radio MT-3 - Manual (Page 42)

USER GUIDE | MT-3 ANALOG RADIO SYSTEMS
Chapter 5: Radio System Components Page 34
A close-up view of the auxiliary connector label, as shown in Figure 5-5, indicates the short signal name
for each connection point. Defi nitions for these signals can be found in the SR-39-1 subrack manual.
Extra General Purpose Input / Output connectors (GPIO) that can be used for different functions
depending on the control card are listed to the right of the connectors. For example, the AC-3E audio
control card uses these lines for auxiliary audio inputs / outputs and auxiliary COR / PTT connections.
The custom functions of these connectors will be marked in the blank space next to the signal name.
Figure 5-5: Auxiliary Panel Pin-Out
J1
Tx
A CSel D2 J2
Tx
A CSel D0
Tx
A CSel D1
Tx
A CSel D3
Rx
A CSel D0
Rx
A CSel D1
Rx
A CSel D2
Rx
A CSel D3
Tx B CSel D0 Tx B CSel D1 Tx B CSel D2 Tx B CSel D3 Rx B CSel D0 Rx B CSel D1 Rx B CSel D2 Rx B CSel D3
J3
GPIO 1 GPIO 2 GPIO 3 GPIO 4 GPIO 5 GPIO 6 GPIO 7 GPIO 8 GPIO 9 GPIO 10 GPIO 1
1
GPIO 12 GPIO 13 GPIO 14 GPIO 15 GPIO 16
Ground Ground Ground Ground 13.8 Vdc 13.8 Vdc 9.5 Vdc 9.5 Vdc Rx
A Sql Over
Rx A
Mode
Rx
A Disc LP
O/P
Rx
A Sql De-emp
Rx B Sql Over Rx B Mode Rx B Disc LP
O/P
Rx B Sql De-emp
J4
GPIO 17 Tx
A VSWR Fwd
Tx
A VSWR Rev
Tx
A Dir Mod
Tx A
Sec/Clr
Tx
A PTT
Out
Rx
A Sig Stren
Rx A
Mute
GPIO 18 Tx B VSWR Fwd Tx B Dir Mod Tx B Sec/Clr Tx B PTT
Out
Rx B Sig Stren
J5
Tx B VSWR Rev Rx B Mute
Tx
A Bank Sel
Rx
A Sec/Clr O/P
GPIO 19 Rx A
9.5V
Rx
A 9.5V Mon
Rx
A COR Rly N/C
Rx
A Bank Sel
Tx B Bank Sel Rx B Sec/Clr O/P GPIO 20 Rx B 9.5V Rx B 9.5V Mon GPIO 21 Rx B Bank Sel GPIO 22 GPIO 23
J6
Pin 1 Pin 16 Wire Sizes: 22 AWG Min, 16 AWG Max
GPIO 1
GPIO 2
GPIO 3
GPIO 4
GPIO 5
GPIO 6
GPIO 7
GPIO 8
GPIO 9
GPIO 10
GPIO 11
GPIO 12
GPIO 13
GPIO 14
GPIO 15
GPIO 16
GPIO 17
Tx
A Bal I/P
1
Tx A
PTT
Rx
A Bal O/P
1
Rx
A Bal O/P
2
Rx A
COR
Rx
A Disc O/P
Tx B Bal I/P
1
Tx B Bal I/P
2
Tx B PTT Tx B Subt I/P
1
Rx B Bal O/P
1
Rx B Bal O/P
2
Rx B COR Rx B Disc O/P Tx
A Subt I/P
1
Tx
A Bal I/P
2
GPIO 18
GPIO 19
GPIO 23
GPIO 22
GPIO 21
GPIO 20
A-PNL-AUX96-3