Codan Radio MT-4E Paging - Manual (Page 33)

MT-4E PAGING SYSTEMS | USER GUIDE
Chapter 3: MT-4E Paging System Components Page 25
Channel and Bank Selection
Codan MT-4E receiver and transmitter modules are capable of 16 channel operation in 2 banks (32
channels total). The 16 channels are controlled via four CSEL signal lines and the two banks are
controlled via a Bank A/B select line connected to each receiver and transmitter module. The CSEL
and Bank A/B signal lines are set as either a 0 (0 Vdc) or a 1 (+9.5 Vdc) to select the Bank / Channel.
Most paging systems operate on a single channel (Bank A, Channel 1).
A-PNL-AUX96-3 Auxiliary Connector
An optional component that can be added to the subrack is the A-PNL-AUX96-3 Auxiliary Connector.
The auxiliary connector mounts on the back wrap-around cover of the subrack and connects to the
auxiliary connector on the motherboard. The A-PNL-AUX96-3 brings all of the auxiliary connector
signal lines out to screw terminals for easy connection. These connections are ideal for interfacing
external equipment and allowing easy access for testing and tuning points. The A-PNL-AUX96-3
Auxiliary Connector and the back wrap-around cover are shown in Figure 3-17.
Figure 3-17: Auxiliary Panel Diagram
CONNECTOR
BOARD
SUBRACK REAR VIEW
PLUG IN SCREW
CONNECTORS
A-PNL-AUX96-3
HEADERS AND LABEL
TERMINAL
BLOCK BOARD
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 Spare 1Spare 2Spare 3Spare 4Spare 5Spare 6IMC 1 IMC 2 Alarm 1Alarm 2Alarm 3Alarm 4Alarm 5Alarm 6Alarm 7Alarm 8
GroundGroundGroundGround13.8 Vdc 13.8 Vdc 9.5 Vdc9.5 VdcRx A Sql Over Rx A Prior COR Rx A Disc LP O/P Rx A Sql De-emp Rx B Disc LP O/P
Rx B Prior COR Rx B Disc LP O/P Rx B Sql De-emp J4
Tx A Audio Cntl
Tx A VSWR Fwd Tx A VSWR Rev Tx A Dir Mod Tx A Subt I/P 2
Tx A PTT Out Rx A Sig Stren Rx A Mute Tx B Audio Cntl Tx B VSWR Fwd Tx B Dir Mod Tx B Subt I/P 2
Tx B PTT Out Rx B Sig Stren J5 Tx B VSWR Rev Rx B Mute
Tx A Standby Rx A Amp Aud Rx A Sql Flat Rx A 9.5V Rx A 9.5V Mon Rx A Iso COR A
Rx A Iso COR K Tx B Standby Rx B Amp Aud Rx B Sql Flat Rx B 9.5V Rx B 9.5V Mon Rx B Iso COR
A
Rx B Iso COR K 5W Rx Audio IMC 3 J6
Pin 1 Pin 16 Wire Sizes: 22 AWG Min, 16 AWG Max
Spare 1
Spare 2
Spare 3
Spare 4
Spare 5
Spare 6
Spare 7
Spare 8
Spare 9
Spare 10
Spare 11
Spare 12
Spare 13
Spare 14
Spare 15
Spare 16
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