Extron electronics FOXBOX Tx HDMI User Manual page 19

3.
Place the LockIt lacing bracket on the screw and against the HDMI connector, then
tighten the screw to secure the bracket (
ATTENTION: Do not overtighten the HDMI connector mounting screw. The shield
to which it fastens is very thin and can easily be stripped.
4. Loosely place the included tie wrap around the HDMI connector and the LockIt lacing
bracket as shown ( d ).
5.
While holding the connector securely against the lacing bracket, use pliers or similar
tools to tighten the tie wrap, then remove any excess length (
RS-232 connections
The Remote RS-232 port on the receiver only is for remote control of the receiver. The
RS-232 Over Fiber port on both units is for transmission of serial signals, such as projector
control signals, between the transmitter and receiver. See figure 10 to properly wire the
connectors.
REMOTE RS-232
RS-232 OVER FIBER ALARM
Tx Rx Tx Rx 1 2
Ground (
Receive (Rx)
Transmit (Tx)
NOTE: Cross the Tx and Rx lines once between the source and the target.
Figure 10. RS-232 Over Fiber Connector
NOTE: 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.
Alarm outputs connection
RS-232
Pin 1 and pin 2 are
OVER FIBER ALARM
shorted together when
no light is detected.
Tx Rx 1 2
Do not tin the wires!
Figure 11. Alarm Connector
NOTES: The length of exposed wires is critical (see the RS-232 connector
c ).
Pin Function
TX Transmit data
RX Receive data
Gnd Signal ground
Do not tin the wires!
Bidirectional
)
FOXBOX Tx/Rx HDMI • Installation and Operation
e ).
Controlling
Device
Ground ( )
Receive (Rx)
Transmit (Tx)
NOTE above.)
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