Extron electronic MC104 IP setup guide Volume control, Configuration host control port

Hardware Setup, cont’d

Volume control

C	Volume knob and LEDs — Rotate this knob to adjust the audio
	volume. Global Configurator lets you select whether this
	knob will control the projector’s audio levels or the optional
	MediaLink switcher’s audio levels.
	If the MLC is configured for use with a MediaLink Switcher
	or projectors, the MLC’s LEDs light to indicate volume ranges
	(with steadily lit LEDs) and minimum/maximum volume limits
	(with flashing LEDs).
	If the MLC is configured for increment/decrement volume
	adjustment, the LEDs scroll up/down briefly.

Configuration (host control) port

D	Front panel Config port — This 2.5 mm mini stereo jack
	provides an RS-232 connection for configuration and control.
	An optional cable for this port is the 9-pin D to 2.5 mm stereo
	mini TRS RS‑232 cable, shown below, (Extron part #70-335-01).
		6 feet
		(1.8 m)

MLC 104 MediaLink Controllers

Chapter3Three

1 6

Part #70-335-01

MLC 104 Series Software Setup

5

9

Step 1: Download Device Drivers

Tip

Ring

Sleeve (Gnd)

9-pin D	Connection	TRS Plug
Pin 2	Computer's RX line	Tip
Pin 3	Computer's TX line	Ring
Pin 5	Computer's signal ground	Sleeve

Pin out for TRS RS-232 cable wiring

This port has the following RS-232 protocol:

•38400 baud

•1 stop bit

•no parity

•8 data bits

•no flow control

Step 2: Create a New Project

Step 3: Add an MLC 104 Controller and Define its Location Step 4: Define E-mail Settings (IP model only)

Step 5: Add Serial and IR Devices

Step 6: Configure the Front Panel Buttons

Step 7: Create a Display Shutdown Schedule

Step 8: Create a Display Lamp Hour Warning E-mail (IP model only) Step 9: Create a Display Disconnection E-mail (IP model only)

Step 10: Build and Upload a Configuration

2-8 MLC 104 Series MediaLink Controllers • Hardware Setup