Wiring For Rs-232 Over Fiber And Alarm Communication; Wiring For Remote Contact Closure Communication - Extron electronics FOX T USW 103 User Manual

Wiring for RS-232 Over Fiber and Alarm Communication

The RS-232 Over Fiber port is for transmission of serial signals, such as projector control
signals. The alarm port is an internal relay to connect or disconnect a custom alarm circuit.
Wire the connector as shown in figure 5 below.
Tx Rx G
RS-232 Device
Figure 5.
ATTENTION:
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.
For RS-232 over fiber connection, cross the Tx and Rx lines once between the source and
the target.
The alarm pins do not produce any discrete on or off or voltage signals.
NOTES:
• The alarm port does not produce any discrete on or off voltage signals.
• If power is lost or if link 2 optical light is disconnected, lost, or broken, alarm pins 1
and 2 internally short.

Wiring for Remote Contact Closure Communication

Each port senses an external switch or contact closure. Use these ports to select an input
on the switcher. Wire the connector as shown in figure 6 below.
CONTACT
1 2 3 G
Heat
Shrink
Over
Shield
Wires
G
Figure 6.
RS-232
OVER FIBER ALARM
Tx Rx G 1 2
1 2
Alarm Device
Wiring the RS-232 Over Fiber and Alarm Connector
The length of exposed wires is critical. The ideal length is
Switch
3
2
1
Wiring the Contact Closure Connector
Ground
Wire Nut
Device 3
(Switches,
relays, or
Device 2
similar items)
Device 1
FOX T USW 103 Universal Switcher • Installation 8