Extron electronics DTP2 T/R 211, User Manual

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DTP2 T/R 211 • Installation and Operation 14
RS‑232 and IR Connector Wiring
See figure 8 to wire the 5‑pole RS‑232 and IR communication connector.
Tx Rx
Rx Tx
Gnd
Gnd
IR Device
RS-232 Device
Rx
Tx
Rx
Tx
G
RS-232
IR
OVER DTP
Figure 8. RS-232 Connector Wiring
Use a female 9‑pin D connector to bare wire RS‑232 cable or a universal control cable
(UC50’ or UC100’) to connect your computer or control system to the Over DTP2 port.
1. Wire the unterminated end of the RS‑232 cable to the first three pins on the connector,
starting at the left of the 5‑pole captive screw plug as described below:
a. Connect the transmit wire from the RS‑232 device into the Rx pin of the DTP2 211.
b. Connect the receive wire from the RS‑232 device into the Tx pin of the DTP2 211.
c. Connect the ground wire from the RS‑232 device into the G pin of the DTP2 211.
2. Wire the unterminated end of the IR cable to the third, fourth, and fifth pins of the 5‑pole
captive screw plug as shown in figure 7.
a. Connect the transmit wire from the IR device into the Rx pin of the DTP2 211.
b. Connect the receive wire from the IR device into the Tx pin of the DTP2 211.
c. Connect the ground wire from the IR device into the G pin of the DTP2 211.
3. Plug the 5‑pole connector into the Over DTP2 port on the rear panel of the transmitter
or receiver.
4. Connect the other end of the cable to the appropriate computer or control system port.
NOTES:
•
The RS‑232 and IR connectors share the ground pole and the data from both can
be transmitted simultaneously.
• The IR Tx and Rx line pair and the RS‑232 Tx and Rx line pair must each cross
once between this connector and the source or destination.
• The length and preparation of exposed wires is important (see the ATTENTION
notifications on the previous page for details).
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