User manual

IRD-2900 Series
Professional Integrated Receiver Decoders
Scopus Documents (p/n 100793) Page 2-5
The IRD supports terminal control from a standard PC through a serial RS-232,
RS-485, and GPI cable. Table 2-2 and Table 2-3 detail the pin-to-pin and signal
assignments of the RS-232 and RS-485 cables respectively.
Table 2-2: RS-232 and RS-485 Control Connector Pin-Out
Descriptions
P
IN
D
ESIGNATION
P
IN
D
ESIGNATION
1 RS-232 CD/RS-485 TX (+) 6 RS-232 DSR/RS-485 TX (-)
2 RS-232 RXD 7 RS-232 RTS
3 RS-232 TXD 8 RS-232 CTS/RS-485 RX (+)
4 RS-232 DTR 9 RS-232 Ring/RS-485 RX (-)
5 Common
Table 2-3 also details the pin designations for data output (RS-232 and GPI).
These two data flow protocols can be simultaneously enabled over the connector
interface.
Table 2-3: RS-232 Low Speed Data and GPI Output Pin-Out
Descriptions
PIN DESIGNATION PIN DESIGNATION
1 GPI1 NC 6 GPI1 Common
2 RX Data 7 GPI1 NO
3 TX Data 8 GPI2 NC
4 GPI2 Common 9 GPI2 NO
5 Common