Extron electronic FOX T USW 103 manual Wiring for RS-232 Over Fiber and Alarm Communication

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.

RS-232

OVER FIBER ALARM

Tx Rx G 1 2

	Tx Rx G		1 2
RS-232 Device		Alarm Device

Figure 5. Wiring the RS-232 Over Fiber and Alarm 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.

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	Switch
3

2

1

Ground

Wire Nut

Device 3

(Switches,

Device 2 relays, or similar items)

Device 1

Figure 6. Wiring the Contact Closure Connector

FOX T USW 103 Universal Switcher • Installation 8