Extron electronic MLS 304SA, MLS 304MA, MLS 406 Control connection, IR Link IR signal repeater

Control connection

F RS-232/MLC/IR control port —You can control the MLS switcher via an RS­232 connection directly from a host computer, a control system, or a MediaLink Controller (MLC). Alternatively, you can use IR remote control via an Extron IR Link connected to this port.

	Tx Rx IR	12V
Connect a cable between this port and an optional	RS-232/MLC/IR
Extron MLC MediaLink Controller or an optional
	A B C
IR Link IR signal repeater.

• The MLC provides remote control of input switching and volume.

• The IR Link accepts modulated IR signals	Transmit (Tx)
from a remote control so the remote control	Receive (Rx)
can be used for selecting the switcher’s	Sleeve(s)
	Ground ( )
inputs.	+12 V, 0.4 A power output

Extron Comm-Link cable is recommended for this connection. If you use Comm-Link

cable, the switcher and controller (MLC) can be up to 250 feet (76.2 m) apart. Wire the captive screw connector for connection to an IR Link, an MLC, or a computer or control system as shown in the following four diagrams.

RS-232
MLC/IR
Tx Rx IR +12V	MediaLink
	Switcher
A B C	rear panel
	RS-232/MLC/IR port
		+12 VDC
	C	Ground ( )	D
		IR (IR Link)
	150 feet (45.7 m) maximum

A B C D E		RS-232
		MLC/IR
		Tx Rx IR 12V
IR Link		A B C
	MediaLink Switcher Rear Panel
port
IR
	MLA-Remote	SIGNAL

MediaLink Switcher to an IR Link IR Link

RS-232
MLC/IR	MediaLink			RS-232
Tx Rx IR +12V	Switcher			A B C
				MLC/IR
				Tx Rx IR 12V
	rear panel		MediaLink Switcher Rear Panel
A B C	RS-232/MLC/IR port
	NOTE The switcher provides up to 12 VDC, 0.40 A power to an MLC 206.
		Other MLC models may draw more current than the MLS can provide.
		Extron recommends using a separate power supply for the MLC.
	+12 VDC	+12 VDC
	Ground ( )	Ground (	)
	B Receive (Rx)	Transmit (Tx) B
	A Transmit (Tx)	Receive (Rx) A		MediaLink
	250 feet (76.2 m) maximum			Controller
			MLC	(MLC)
			MLS/Power
NOTE If you use cable that has a			port
			A B
	drain wire, tie the drain wire
			MLS / Power
	to ground at both ends.

MediaLink Switcher to an MLC

PRELIMINARY

MLS 304 Series, MLS 406 Series • Installation 2-