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Contact Closure Communication
Each port senses an external switch or contact closure. Use these ports to select an input
on the switcher from a contact closure device. Wire the connector as shown in figure 6.
CONTACT
123G
Ground
Wire Nut
Device 3
Device 2
Device 1
(Switches,
relays, or
similar items)
Switch
1
2
3
G
Heat
Shrink
Over
Shield
Wires
Figure 6. Wiring the Contact Closure Connector
RS-232 and IR Communication
The RS-232 and IR Over XTP connector is for pass-through transmission of serial signals,
such as projector control signals, and Infrared data (see figure 7 for an example of how to
wire the connector).
Tx/Rx
Pins
RxTx
RS-232
RxTx
TxRx
RxTx
Custom
IR Device
RS-232 Device
G
G
G
IR
Figure 7. Wiring the RS-232 and IR Over XTP Connector
ATTENTION: The length of exposed wires is critical.
• The ideal length is 3/16 inch (5 mm).
• Longer bare wires can short together.
• Shorter wires are not as secure in the connectors and could be pulled out.
XTP T USW 103 • Installation 7