DO
GUIDE
HD-MD-300-C-E
HD Scaling Auto-Switcher and Extender 300
DO
Install the Devices
The Crestron
®
HD-MD-300-C-E is a high-definition AV switcher, scaler, and extender that consists of a
transmitter and a receiver.
Installing the Transmitter
Install the transmitter into a 2-gang electrical box (not included) in a wall, floor, or ceiling. A minimum
mounting depth of 2 inches (51 mm) is required.
To install the transmitter into an electrical box, do the following:
1. Connect the TO RX and Ethernet ports on the rear of the transmitter.
NOTE:
The 24 Vdc 1.25 A power connector on the transmitter is not used. The transmitter receives
power from the included power pack that connects to the receiver only.
2. Using a Phillips screwdriver, attach the transmitter to the electrical box using the four included
#6-32 x 3/4-inch truss combo head screws.
3. Attach a decorator-style faceplate (not included) to the front panel of the transmitter using four
screws (not included).
DO
Check the Box
QUANTITY
PRODUCT
PART NUMBER
Items for the Transmitter Only
4
Screw, 6-32 x 3/4", Truss Head, Combo
2009211
Items for the Receiver Only
1
Connector, 2-Pin
2003574
2
Connector, 5-Pin
2003577
1
Power Pack, 24 Vdc 1.25 A, 100-240 Vac
2045870
Installing the Receiver
Mount the receiver onto a flat surface or onto a rack rail.
Mounting onto a Flat Surface
Using four mounting screws (not included), mount the receiver onto a flat surface such as a wall.
Mounting onto a Rack Rail
Mount the receiver onto the front or rear rail of a rack. Position either the left or right mounting flange of
the device so that the holes align with the holes in the rack. Then, secure the device to the rack using
two mounting screws (not included).
DO
Connect the Devices
Make connections to the transmitter and receiver as required for the application.
Connecting the Transmitter
Make connections to the front panel of the transmitter.
The SERVICE port on the right side of the transmitter is for factory use only.
TO RX:
To FROM TX
link input of
receiver
Passive
pass-through
to front panel
Ethernet port
:
24 V
1.25 A:
Not used
24 G
Passive
pass-through
to rear panel
Ethernet port
HDMI IN:
From HDMI
®
audio/video
source
:
VGA IN:
From RGB (VGA)
or component
video output
AUDIO IN:
From unbalanced
stereo line level
audio output
SERVICE:
For factory
use only
