Extron electronic SW12 VGA ARS, SW8/12 VGA Audio output connections, Remote control connection

Audio output connections

The switcher have two 3.5mm 5-pole captive screw audio output ports.

The Fixed port delivers a fixed volume, stereo balanced/unbalanced audio output.

The Variable port delivers a variable volume, stereo balanced/unbalanced audio output. The volume range is 0 (-84 dB) through 100 (0 dB). The default volume setting is 100 (0 dB). Volume is controllable only via the RS-232 port.

O	1			SW12 VGA Ars
U
T		FIXED	VARIABLE
P
		L R	L R	RS-232
U	2

T

S

Audio output ports

Figure 2-10 — Audio output ports

Wire the captive screw connectors as shown below.

CConnect the sleeve to ground (_). Connecting the sleeve to a negative (-) terminal will damage the audio output circuits.

Tip

NO GROUND HERE.

Sleeve(s)

Tip

NO GROUND HERE.

	Unbalanced
Do not tin the wires!	Stereo Output

Tip

Ring

Tip

Ring

Balanced

Stereo Output

Figure 2-11 — Captive screw connectors

NA balanced audio output provides a +6 dB gain. An unbalanced audio output provides a 0 dB gain.

Remote control connection

An RS-232 serial control port at the right edge of the rear panel is used for computer or infrared (IR) remote control of the device. The switcher’s firmware can be upgraded through the RS-232 port. See chapter 3, “Operation and Control”.

The RS-232 port communications protocols are: 9600 baud, 8 data bits, 1 stop bit, no parity, and no flow control.

IR remote control requires use of the IR 102 Remote Control Kit (part #70-224-01)

For computer or infrared remote control, only pins 2 (transmit data), 3 (receive data), and 5 (ground) are required. Disconnect all other conductors in the attachment cable for proper operation.

O					5	1
	1			SW12 VGA Ars
U
T		FIXED	VARIABLE
P
		L R	L R	RS-232	9	6
U	2

T	DB9 Pin Locations
S
	Female

RS-232 control port

Figure 2-12 — RS-232 control port

SW8/12 VGA Ars • Installation and Operation 2-9