Pin 1, Wire sizes: 22 awg min, 16 awg max, A-pnl-aux96-3 – Codan Radio MT-4E Paging User Manual
Page 34: Pin 16

USER GUIDE | MT-4E PAGING SYSTEMS
Chapter 3: MT-4E Paging System Components
Page 26
A close-up view of the auxiliary connector label, as shown in Figure 3-18, 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. The custom functions of these
connectors for the CI-PM-3 paging modulator are marked in the blank space next to the signal name.
Figure 3-18: 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
DATA OUT
CTCSS HU/BUSY
PTT
A/D MODE SEL
2-LVL/4-LVL SEL
EXT CLOCK
BAL AUDIO 1
BAL AUDIO 2
2-LVL DATA
4-LVL DATA
EXT B/W SEL
A-PNL-AUX96-3