2
quickstart guide
HD-TX and HD-RX Series
www.crestron.com
888.273.7876 201.767.3400
Specifications subject to
change without notice.
HD-TX and HD-RX Series
For Regulatory Compliance information, refer to
the latest version of Doc. 6860.
QUICKSTART DOC. 6861D (2025032) 08.16
HDMI Fiber-Optic Transmitters and Receivers
HD-TX3-F Front Panel Connections
Connecting the AUDIO Input Port: Using an unbalanced
3.5 mm TRS mini phone jack cable (not supplied), connect the
AUDIO input port to an unbalanced audio source.
Connecting the USB HID Port: Using a USB cable (not
supplied), connect the USB HID port to a computer.
Connecting the HDMI IN Port: Using an HDMI cable (not
supplied), connect the HDMI IN port to the HDMI output port of
the audio/video source.
Connecting the LAN Port: Using an Ethernet cable (not
supplied), connect the 10BASE-T/100BASE-TX LAN port to the
LAN. Pin designations are listed below.
LAN Port Pin Designations
HD-TX3-F Front Panel Connections
4HD-TX3-F and HD-RX3-F Connections
The specific patents that cover Crestron products are listed at
patents.crestron.com.
Certain Crestron products contain open source software. For specific information,
please visit www.crestron.com/opensource.
Crestron, the Crestron logo, and CresFiber are either trademarks or registered
trademarks of Crestron Electronics, Inc. in the United States and/or other
countries. HDMI is either a trademark or registered trademark of HDMI Licensing
LLC in the United States and/or other countries. Other trademarks, registered
trademarks, and trade names may be used in this document to refer to either the
entities claiming the marks and names or their products. Crestron disclaims any
proprietary interest in the marks and names of others. Crestron is not responsible
for errors in typography or photography.
This document was written by the Technical Publications department at Crestron.
©2016 Crestron Electronics, Inc.
AUDIO
USB HID
HDMI IN
LAN
Audio
source
LAN
Pin 1Pin 8
AV
source
LAN
HD-RX3-F Front Panel Connections
Connecting the AUDIO Output Port: Using an unbalanced
3.5 mm TRS mini phone jack cable (not supplied), connect the
AUDIO output port to an unbalanced audio output device.
NOTE: When the HDMI IN (HD-TX3-F) or HDMI OUT
(HD-RX3-F) port is connected or disconnected or if the HDMI
input resolution changes, the analog audio output is muted for a
few seconds.
Connecting the USB HID Port: Using a USB cable (not
supplied), connect the USB HID port to a mouse or keyboard.
(A keyboard with a built-in touchpad or trackball is supported.
Built-in and external USB hubs are not supported.)
Connecting the HDMI OUT Port: Using an HDMI cable (not
supplied), connect the HDMI OUT port to the HDMI input port of
the receiving device.
Connecting the LAN Port: Using an Ethernet cable (not
supplied), connect the 10BASE-T/100BASE-TX LAN port to the
LAN. (LAN port pin designations are listed in the table in the
left-hand column.)
HD-RX3-F Front Panel Connections
HD-TX3-F and HD-RX3-F Rear Panel Connections
Connecting the Control Ports: Connect the IR or COM
control port or both as follows:
• IR IN (HD-TX3-F): Using an IR cable (not supplied),
connect the 2-pin terminal block of the IR IN port to the IR
output port of the control system.
• IR OUT (HD-RX3-F): Using the Crestron IRP2 emitter (not
supplied), connect the 2-pin terminal block of the IR OUT
port to the IR input port of the device to be controlled
• COM (RS-232): Using a data communications cable (not
supplied), connect the 3-pin terminal block as follows:
- For the HD-TX3-F, connect the COM port to the COM
port of the control system.
- For the HD-RX3-F, connect the COM port to the COM
port of the device to be controlled.
HDMI OUT
AUDIO
USB HID LAN
Display
LAN
Powered
speakers
Mouse or
keyboard
LAN
Pin 1Pin 8
HD-TX3-F Rear
Panel Connections
HD-RX3-F Rear
Panel Connections
IR IN
S G
COM
TX
RX
GND
MM OPTICAL 12VDC
1.5A IR OUT
S G
COM
TX
RX
GND
MM OPTICAL 12VDC
1.5A
Ground
Ground
USB port
(for factory
use only)
USB port
(for factory
use only)
Power
supply
Fiber-optic cable
Power
supply
Control
system Display
CLASS 1
LASER
PRODUCT
CLASS 1
LASER
PRODUCT
Connecting the MM OPTICAL Fiber Port: Using a CresFiber or other
quality 50/125 μm or 62.5/125 μm simplex multimode fiber-optic cable with
SC connectors, connect one end of the cable to the MM OPTICAL
connector on the HD-TX3-F and the other end of the cable to the MM
OPTICAL connector on the HD-RX3-F.
NOTE: For maximum distance, the fiber-optic cable should be rated for at
least 500 MHz*km effective modal bandwidth (EMB) at both 850 nm and
1300 nm. Refer to the cable manufacturer’s datasheet for EMB information.
Connecting the Ground: Connect the chassis ground lug to earth ground
(building steel).
Connecting the 12 Vdc Power Jack: Connect the 12 Vdc power jack to
the PW-1215WU external power supply included with the HD-TX3-F and
HD-RX3-F.
PIN SIGNAL PIN SIGNAL
1 TX+ 5 N/C
2 TX– 6 RX–
3 RX+ 7 N/C
4 N/C 8 N/C
