General Dynamics CG-1220, Operation And Maintenance Manual

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Appendix C– DTR Remote M&C Protocol CG-6073 (Rev R, Jun, 2012)
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PORT 2
Path:
/ CONFIGS COMM-PARAM PORT-2
Type:
Sub Menu
Syntax:
PORT-2
Notes:
PORT 2 is used for M&C operation and allows RS-232 and RS-422 connections. .
The data parameters are set in factory to: 8 Data bits, 1 Stop bit, No Parity. PORT
2 is available on the back panel as a 9 pin D subminiature socket connector. The
RS-232 electrical pinout is: pin 2=RX (from DCE); pin 3=TX (from DTE); pin
5=Signal Ground; pin 7=RTS (from DTE); pin 8=CTS (from DCE); The RS-422
electrical pinout is: pin 1=TX+; pin 4=RX+; pin 6=TX-; pin 9=RX-. Notice that
these two pinouts coexist on the same 9 pin connector without conflict.
PORT 3 (v 1.19.06 or later)
Path:
/ CONFIGS COMM-PARAM PORT-3
Type:
Sub Menu
Syntax:
PORT-3
Notes:
PORT 3 is used for M&C communications on a multi-drop half-duplex 485 bus. This
menu controls the BPS, SHELL, and bus addressing parameters of this PORT.
Notice that the data parameters are set in factory to: 8 Data bits, 1 Stop bit, No
Parity. PORT 3 is available on the back panel as a 9 pin D subminiature socket
connector.
The RS-485 electrical pinout is:
Pin 7 = Cable Shield
Pin 1 = Data+(RxD/TxD +)
Pin 6 = Data- (RxD/TxD -)
POWER LEVEL CALIBRATION
Path:
/ CONFIGS MEMORY CALIBRATION CALIBRATION
Type:
Data Editor
Syntax:
CALIBRATION [= n] | [D]
Range:
Real: -99.99 .. 99.99
Notes:
POWER LEVEL CALIBRATION adjusts the calibration value used to calculate the
signal power measurement reported by the DTR (shown on the front display in
dBm). This parameter should NOT be modified under normal circumstances.