XTP II CrossPoint Series • Installation
22
RS-232 and IR Over XTP Communication
RS-232 and IR Over XTP connectors pass serial signals (such as projector control signals)
and infrared data. To pass bidirectional serial command signals between XTP-compatible
devices, connect a control device or device to control to the three poles (Tx, Rx, and G)
under “RS-232” of the 5-pole captive screw connector. To transmit and receive IR signals,
connect a control device or device to control to the three poles (G, Tx, and Rx) under “IR.”
The ground (G) pole is shared.
NOTE:
RS-232 and IR data can be transmitted or received simultaneously (see
figure 17 for wiring considerations).
Tx/Rx
Pins
Rx
Tx
RS-232
IR
Rx
Tx
Tx
Rx
Rx
Tx
IR Device
RS-232 Device
G
G
G
Figure 17.
RS-232 and IR Over XTP Connector Wiring Configuration
ATTENTION:
The length of the exposed wires in the stripping process is critical.
ATTENTION :
La longueur des câbles exposés est primordiale lorsque l’on entreprend
de les dénuder.
•
The ideal length is 3/16 inch (5 mm).
•
La longueur idéale est de 5 mm (3/16 inches).
•
If they are too long, the wires may touch, causing a short circuit between them.
•
S’ils sont trop longs, les câbles exposés pourraient se toucher et provoquer un
court circuit.
•
If they are too short, they can be easily pulled out, even if tightly fastened by the
captive screws.
•
S’ils sont trop courts, ils peuvent être tirés facilement, même s’ils sont
correctement serrés par les borniers à vis.
•
Do not tin the wires. Tinned wire does not hold its shape and can become loose
over time.
•
Ne pas étamer les câbles. Les câbles étamés ne sont pas aussi bien fixés dans les
borniers à vis captives et pourraient s’arracher.
