TANDBERG Codec C90 D14128.02 System Integration Manual page 36

Codec C90
Contents Introduction
Connecting to the codec,
Hardware & Cabling (RS-232)
The pin outs for the RS-232 are defined in the tables to the right.
Observe that the DTE (Data Terminal Equipment), could be a PC or
any other device capable of serial communication.
Cable. A straight-through cable should be used between the
TANDBERG RS-232 port and the DTE. The lower table shows the
recommended cable-wiring scheme when connecting the TANDBERG
Codec C90 to a PC through RS-232.
DTR and RTS are ignored. DSR, CD, and CTS are always asserted,
while RI is not used.
Troubleshooting (RS-232)
If communication cannot be established between the PC/terminal and
the TANDBERG Codec data port, the following should be checked:
1. Verify that the serial cable is a straight-through 9-pin to 9-pin
cable.
2. Confirm that the configuration of the PC/terminal's serial RS-232
port is identical to the configuration of the TANDBERG RS-232
port.
3. Verify that the PC/terminal's serial RS-232 port is working properly
by connecting it back-to-back to another PC/terminal and send
characters in both directions.
D14128.02—NOVEMBER 2008
About the API
Getting Started Interfaces About the API
cont...
Pin
xConfiguration xCommand
COM port (RS-232)
Direction
Signal name
From DCE
1 Carrier detect, CD
From DCE
2 Receive data, RXD
To DCE
3 Transmit data, TXD
From DCE
4 Data terminal ready, DTR
5 Signal GND
From DCE
6 Data set ready, DSR
To DCE
7 Ready to send, RTS
From DCE
8 Clear to send, CTS
From DCE
9 Ring indicator, RI
System Integrator Guide
xStatus Cameras Appendices
Cable wiring (RS-232) TANDBERG DCE <-> PC
TANDBERG DCE 9 pin Direction
—>
1 CD
—>
2 RD
3 TD
<—
4 DTR <—
5 GND <—>
6 DSR —>
7 RTS <—
8 CTS —>
9 RI —>
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PC DTE, 9 pin
1 CD
2 RD
3 TD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
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