12
13
IR In Mode:
Use the Control Rotary to select IR Sensor or Serial IR input mode. Refer to the Extending
IR and RS-232 Control section for more information
➔
IR Sensor Mode:
»
IR Sensors can be connected directly into the Tx or Rx unit’s IR In port to collect
line-of-sight signals from device remotes
»
No external IR distribution block or power supply is needed
»
3-wire connection: IR Signal, Ground, and 5V for powering sensor
➔
Serial IR Mode:
»
Typically fed from a control processor or IR connection block
»
2-wire connection: IR Signal, and Ground
RS-232 Mode:
Set the desired RS-232 mode using the Control Rotary on the Tx and Rx unit. Refer to
the Extending IR and RS-232 Control section for wiring information
RS-232 Pass-through Mode
➔
Send and receive (bi-directional) RS-232 communication for controlling peripheral
equipment.
➔
Bi-directional RS-232 is achieved utilizing the 3-pin phoenix on the Tx and Rx unit
➔
Supports baud rate up to 115,200bps.
➔
RS-232 may be used at the same time as IR.
Firmware Upgrade Mode
➔
Firmware upgrades should only be initiated if instructed by Key Digital Technical
Support
C
4Kx2K@60, 18G, HDR, HD AUDIO
IMPORTANT: Please
apply light pressure to
the EDID rotary when
making your selection.
D
1280x720p@60 DVI (no audio)
E
1920x1080p@60 DVI (no audio)
F
4Kx2K@30, 10.2G, HDR, 2CH AUDIO
Control Rotary:
Choose the desired setting for hot plug detection control, IR
input, and RS-232 type.
Power cycle unit after changing
settings.
NOTE:
The Tx and Rx unit each have a Control rotary. Some
settings may require that the rotaries match on the Tx and Rx
unit, others are only set on the Tx or Rx unit in order to work
properly. Please read below information fully and refer to the Control Rotary settings
table for more information.
Forced HPD On/Bypass
➔
In cases of many layers of connectivity or non-standard devices in-line, hot plug
detection (HPD) may be lost or drop below standard levels, leading to the video source
not detecting a display/sync device and not outputting a signal. A display device may
also not detect a connected source in cases of failed hot plug detection.
➔
If set to On, Hot Plug Detection (HPD) voltage is forced at the HDMI connection of the
Tx/Rx unit. The connected source/display device will be fed a constant voltage to
inform the device that a partner is always connected and active.
➔
If set to Bypass, Hot Plug Detection (HPD) voltage is bypassed from connected output/
display to the input/source.
KD-X444S_Manual.indd 12-13
6/5/18 12:20 PM