Extron electronic MVX 128 manual Installation, cont’d, RS-232/RS-422 connection

Installation, cont’d

d Connections 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 2-4 to properly wire an output connector.

Tip See caution Sleeve Tip

See caution

Tip

Ring

Sleeve (s)

Tip

Ring

Unbalanced Output Balanced Output

Figure 2-4 — Captive screw connector wiring for audio output

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

The volume level for each output can be individually set via the front panel or RS-232/RS-422 control. See chapter 3, Operation; chapter 4, Programmer’s Guide; and chapter 5, Matrix Software for details.

RS-232/RS-422 connection

e RS-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 2-5).

REMOTE

			Pin RS-232 Function			RS-422 Function
			1	—	Not used	—	Not used
		RS232/RS422	2	TX	Transmit data	TX–	Transmit data (–)
1	6		3	RX	Receive data	RX–	Receive data (–)
			4	—	Not used	—	Not used
5	9		5	Gnd	Signal ground	Gnd	Signal ground
			6	—	Not used	—	Not used
			7	—	Not used	RX+	Receive data (+)
			8	—	Not used	TX+	Transmit data (+)
			9	—	Not used	—	Not used

Figure 2-5 — 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.

NThe switcher can support either the RS-232 or RS-422 serial communication protocol, and operate at 9600, 19200, 38400, or 115200 baud rates.

See Selecting the RS-232/RS-422 protocol and baud rate on page 3-33, to configure the RS-232/RS-422 port from the front panel.

If desired, connect an MKP 2000 or MKP 3000 remote control panel to the switcher’s RS-232/RS-422 connector. Refer to the MKP 2000 Remote Control Panel User’s Manual and the MKP 3000 User’s Manual for details.

2-4 MVX 128 A VGA Matrix Switchers • Installation