User manual

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RS-232 Setup
Advanced Operation
Connecting RS-232 Devices
The 4K Ultra HD ELR-POL Extender w/ RS-232, Ethernet, and 2-way IR supports RS-232
pass-through, allowing the control of RS-232 devices using an automation system.
The RS-232 interface is also used to upgrade the rmware and provides a small set
of RS-232 commands. See Updating the Firmware (page 28) for details.
1. Connect the included 3-pin Phoenix-to-DB-9 (M-F) adapter cable from the Sender unit
to the automation device.
2. Connect the included 3-pin Phoenix-to-DB-9 (M-M) adapter cable from the Receiver
unit to the device to be controlled.
The following diagram shows the pin-out of the RS-232 port on the Sender unit.
Note that only TXD (Transmit Data), RXD (Receive Data), and GND (Signal Ground)
pins are used.
Link Ethernet IR In/Ext
IR Out
EXT-UHD-CAT5-ELRPOLS
Power
Link
24V DC
HDMI In
RS-232
ELR-POL Extender S
4K Ultra HD
w/ RS-232, Ethernet, and 2-way IR
®
4K Ultra HD S
ELR-POL Extender
w/RS-232 and 2-way IR
IR Out RS-232
Link
24V DC Power HDMI IR In
GND TXD RXD
Advanced Operation
Important
When sending RS-232 commands, a CR (0x0D) must be included.