Hall Research HR-731-S - Manual (Page 4)

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