Extron electronic 450 Plus Series manual RS-232/RS-422, RCA connector model MAV Plus 128 AV RCA

Installation, cont’d

5Connections for balanced and unbalanced audio outputs — These 3.5 mm, 5-pole captive screw connectors output the selected unamplified, line level audio. Connect audio devices, such as an audio amplifier or powered speakers. See figure 2-18 to properly wire an output connector. Use the supplied tie-wrap to strap the audio cable to the extended tail of the connector.

Tip

NO GROUND HERE.

Sleeve(s)

Tip

NO GROUND HERE.

Do not tin the wires! Unbalanced Stereo Output

Tip	L
Ring
Sleeve(s)
Tip	R
Ring

Balanced Stereo Output

Figure 2-18 — Captive screw connector wiring for audio output

CAUTION

CAUTION

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

The length of the exposed (stripped) portion of the copper wires is important. The ideal length is 3/16" (5 mm). Longer bare wires can short together. Shorter bare wires are not as secure in the direct insertion connectors and could be pulled out.

The volume level for each output can be individually set via the front panel or Ethernet or serial port control. See chapter 3, “Operation”, chapter 4, “Programmer’s Guide”, chapter 5, “Matrix Software”, and chapter 6, “HTML Operation” for details.

RCA connector model (MAV Plus 128 AV RCA)

6Connections for unbalanced audio inputs — Each input has a pair, left and right, of female RCA connectors for unbalanced stereo audio input.

7Connections for unbalanced audio outputs — Each output has a pair, left and right, of female RCA connectors for unbalanced stereo audio output.

RS-232/RS-422

8RS-232/RS-422 connector — Connect a host device, such as a computer, touch panel control, or RS-232 capable PDA to the switcher via this 9-pin D connector for serial RS-232/RS-422 control (figure 2-19).

REMOTE

						84 through 1616		2412 through 3232
				All Models		Matrix Sizes		Matrix Sizes
			Pin	RS-232	Function	RS-422	Function	RS-422	Function
1		RS232/RS422	1	—	Not used	—	Not used	TX+	Transmit data (+)
	6		2	TX	Transmit data	TX–	Transmit data (–)	TX–	Transmit data (–)
			3	RX	Receive data	RX–	Receive data (–)	RX+	Receive data (+)
5	9		4	—	Not used	—	Not used	RX–	Receive data (–)
			5	Gnd	Signal ground	Gnd	Signal ground	Gnd	Signal Ground
			6	—	Not used	—	Not used	—	Not used
			7	—	Not used	RX+	Receive data (+)	—	Not used
			8	—	Not used	TX+	Transmit data (+)	—	Not used
			9	—	Not used	—	Not used	—	Not used

Figure 2-19 — RS-232/RS-422 connector

See chapter 4, “Programmer’s Guide”, for definitions of the SIS commands (serial commands to control the switcher via this connector) and chapter 5, “Matrix Software” for details on how to install and use the control software.

2-14 CrossPoint 450 Plus and MAV Plus Switchers • Installation