Extron electronic manual Front Panel Operation, cont’d, 10— Controller to USP 507 pinout

Front Panel Operation, cont’d

Setting Up the USP 507 to Work with an Auxiliary Audio Switcher

An auxiliary switcher, such as an Extron SW 8A, can be connected to the USP 507 for audio routing, and controlled via the rear panel 9-pin D-sub Aux Sw Follow (RS-232) port (see n on figure 2-2). When the USP 507 switches inputs by RS-232, IP, or front panel, the USP 507 sends the corresponding switch command

(SIS: X! !) via the Aux Sw Follow port to the auxiliary switcher. The port can also transmit the audio mute command (1Z) to the auxiliary switcher when the USP 507 video is muted or frozen, and when the video is unmuted or unfrozen, a command is sent to unmute the audio.

NThis port cannot directly accept SIS commands nor report the status of the connected auxiliary switcher.

The auxiliary switcher must be connected to the Aux Sw Follow port using a NULL

RS-232 cable only.

Connect the audio input sources to the auxiliary audio switcher, ensuring that the video input number matches the audio input number.

Connect the control host with the pinout as shown below.

Controller Pin		USP 507 Pin
2	(Rx)	3	(Tx)
3	(Tx)	2	(Rx)
5	(Gnd)	5	(Gnd)

Figure 3-10 — Controller to USP 507 pinout

RS-232

PC

Control

Extron
USP 507
Universal Signal
Processor			Conference
	Video		Display
		Projector	Sound System
		Audio
			Extron
			MPA 401
			Mini Power
	DVD		Ampli•er
Laptop	Video Conference	Extron
	Codec
		SW 8 A

Switcher

Figure 3-11 — Example auxiliary switcher connected to USP 507

3-16 USP 507 • Front Panel Operation