Hall Research HR-731-S User Manual

© Copyright 2014. Hall Research, Inc. All rights reserved.

UMA1208 Rev 2

User’s Manual

Model HR-731-S

Fiber optic Video Sender

Extend HDMI™or DVI

and RS-232 over a Single Fiber Optic Cable

1163 Warner Ave Tustin, CA 92780, Ph: [phone], Fax [phone]

1

HDMI and Serial over Single Fiber

TRADEMARKS USED IN THIS MANUAL

Hall Research and its logo are trademarks of Hall Research.

Any other trademarks mentioned in this manual are acknowledged as the property of the trademark
owners.

FCC RADIO FREQUENCY INTERFERENCE STATEMENT

This equipment generates, uses, and can radiate radio frequency energy and if not installed and used
properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to
radio communication. It has been designed to comply with the limits for a Class A computing
device in accordance with the specifications in Subpart B of Part 15 of FCC rules, which are
intended to provide reasonable protection against such interference when the equipment is operated
in a commercial environment. Operation of this equipment in a residential area is likely to cause
interference, in which case the user at their own expense will be required to take whatever measures
may be necessary to correct the interference. Changes or modifications not expressly approved by
the party responsible for compliance could void the user’s authority to operate the equipment.

Table of Contents

1.0 General ................................................................................................ 2

2.0 Features .............................................................................................. 3

3.0 Precautions ......................................................................................... 3

4.0 Theory of Operation .......................................................................... 4

5.0 Installation .......................................................................................... 4

5.1 Required Cables ............................................................................... 5

5.2 Fiber Optic Cable Requirements ...................................................... 5

5.3 Status of LED Indicators .................................................................. 5

6.0 Operation ............................................................................................ 6

6.1 More on RS-232 ............................................................................... 7

6.2 Using the HR-731-S in Command Mode ......................................... 7

6.3 RS-232 Control Commands ............................................................. 8

7.0 Troubleshooting ................................................................................. 9

8.0 Specifications ...................................................................................... 9

2

Model HR-731-S

1.0 General

Thank you for purchasing the Hall Research HR-731-S fiber-optic video Sender
(transmitter). The Sender is normally sold as a kit together with a compatible
receiver under Model # HR-733. The HR-731 extends HD video along with bi­directional RS-232 (for control).

The HR-731-S extends the HDMI video with no compression on one multi-mode
fiber to a remote receiver up to 1,000 meters away. It supports embedded audio
on the HDMI, and all single-link DVI and HDMI resolutions to including 1080p
and beyond. Deep color and 3D formats are also supported.

Higher resolution and video with non-standard resolution can also be extended,
however for resolutions above 1080p@60 the maximum cable length is reduced.
For example 4K@30 (UHD) video can be extended to 300 meters on OM3 (50
micron) fiber, and 2560x1600 @ 60 can be extended to 400 meters on OM3 (50
micron) fiber, 200 meters on OM2 (50 micron), or 100 meters on OM1 (62.5
micron) fiber.

The HR-731 also extends a bi-directional data channel for device control. This
data channel is user selectable to be either CEC (Consumer Electronics Control)
or RS-232 (mutually exclusive). As shipped the device is configured to extend
RS-232, however the user can set the mode for CEC. An LED on the Sender
indicates the operating mode.

The RS-232 port on the Sender operates at a fixed 9600 baud. The sender's baud
rate cannot be changed. As shipped the Receiver's baud rate is set at 19200,
however the receiver side's baud rate is user settable and can be set to any
standard rate in the range of 1200 to 115,200. Both sides incorporate data FIFOs
to accommodate the differing data rates at each end.

The RS-232 port on the sender can also be
used to make configuration changes (e.g.
select data channel mode or change the
Receiver's baud rate). Since normally all
control data that is received by the RS-232
port of the sender is automatically extended
and transmitted to the remote Receiver, a
special sequence of characters is used to
identify the sequence is a configuration
command (which will not be extended).
When using the configuration commands,
both ends need to be connected and linked.

Figure 1 – Model HR-731-S
Sender Front and Rear