Contact Closure Communication; Rs-232 And Ir Communication - Extron electronics XTP T USW 103 User Manual

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
1 2 3 G
Shrink
Shield
Figure 6.

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. To pass bidirectional serial command
signals between XTP-compatible devices, connect a control device to the three leftmost
poles (Tx, Rx, and G) of the 5-pole captive screw connector. To transmit and receive IR
signals, connect a control device to the three rightmost poles (G, Tx, and Rx). The
ground (G) pole is shared.
NOTE: RS-232 and IR data can be transmitted or received simultaneously
(see figure 7 below for wiring considerations).
Tx/Rx
Pins
Figure 7.
ATTENTION:
• 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.
Heat
Over
Wires
G
Switch
3
2
1
Wiring the Contact Closure Connector
Custom
IR Device
Rx Tx G
Tx Rx G
RS-232 Device
Wiring the RS-232 and IR Over XTP Connector
The length of exposed wires is critical.
Ground
Wire Nut
Device 3
(Switches,
relays, or
Device 2
similar items)
Device 1
XTP T USW 103 Switcher • Installation 7