RS-232 and IR connector wiring
Figure 11 shows how to wire the RS-232 connector.
Tx/Rx |
|
Pins |
|
IR | Rx |
| Tx |
232 | Rx |
RS- | Tx |
Connected
and IR Device Pins
Transmit pin on connected unit
Receive pin on connected unit
Ground
Transmit pin on connected unit 
Receive pin on connected unit
Figure 11. RS-232 Connector Wiring
NOTE: The length of exposed wires is important. The ideal length is 3/16 inch (5 mm). See the NOTE on page 6 for details.
Do not tin the power supply leads before installing them in the connector.
Tinned wires are not as secure in the connector and could be pulled out.
Operation
Figure 12 shows the location of the power indicators on the front and rear panels of the transmitter and receiver and the DIP switches on the transmitter.
POWER | DDC ROUTE | |
REMOTE | ||
12V | ||
| ||
0.7 A MAX | ON | |
|
1 
1 2
SPARE 
LOCAL
Front | Rear | 2 | 3 |
(Both Units) | (Tx) |
Figure 12. Power Indicator and DIP Switches
A
B
Power (and signal) LED (front panel) —
Amber — The unit is receiving power, either locally or remotely (on the DTP cable).
Green — The unit is receiving an active DVI input, either on the DVI input if a transmitter, or transmitted on the DTP cable if a receiver.
Power LED (rear panel) —
Amber — The unit is receiving power remotely (on the DTP cable). Green — The unit is receiving power locally.
C DDC Route switch — This rear panel switch selects either the remote or local DVI display as the DDC reference (for EDID and HDCP communications).
NOTE: HDCP content can be played on either the remote or local display only,
depending on the DDC Route switch position.
After the transmitter, the receiver, and their connected devices are powered up, the system is fully operational. If any problems are encountered, ensure all cables are routed and connected properly.
NOTE: Ensure that the video source and display selected for the DDC are properly
connected to the transmitter and receiver pair, and that the transmitter, the 
receiver, and the display have power applied before power is applied to the 
video source. If the other devices are not turned on before the video source, the 
image may not appear.
DTP DVI 301 • Installation and Operation 11