THE HUB

The Hub/KRAMER/Switchers/VS-44H2A

KRAMER, Switchers

VS-44H2A

Control
IP, RS-232 (default TCP)
Encoding
ASCII
IP
TCP port 5000
RS-232
115200 baud, 8N1
Line ending
CR
Roles
Switcher, DSP
More from this makerVS-88H2A

Commands

18 commands
VOLUME3
VOLUME UP #AUD-LVL 1,%o,++
Ending: cr
VOLUME DOWN #AUD-LVL 1,%o,--
Ending: cr
VOLUME SET #AUD-LVL 1,%o,%v
Ending: cr
MUTE4
MUTE ON #MUTE %o,1
Ending: cr
MUTE OFF #MUTE %o,0
Ending: cr
VIDEO MUTE ON #VMUTE %o,1
Ending: cr
VIDEO MUTE OFF #VMUTE %o,0
Ending: cr
INPUT4
INPUT 1 #VID 1>%o
Ending: cr
INPUT 2 #VID 2>%o
Ending: cr
INPUT 3 #VID 3>%o
Ending: cr
INPUT 4 #VID 4>%o
Ending: cr
ROUTING7
SEND IN TO OUT #VID %n>%o
Ending: cr
OUT1 IN1 #VID 1>1
Ending: cr
OUT1 IN2 #VID 2>1
Ending: cr
OUT1 IN3 #VID 3>1
Ending: cr
OUT1 IN4 #VID 4>1
Ending: cr
AV SWITCH #VID %n>%o
Ending: cr
VIDEO SWITCH #VID %n>%o
Ending: cr

Cheat sheet

driver.cheatSheet()

What it is

The Kramer VS-44H2A is a high-performance 4x4 matrix switcher for 18G 4K@60Hz (4:4:4) HDR HDMI signals. It reclocks and equalizes the signals and can route any one of four HDMI, HDCP-compliant sources (selectable) to any or all outputs simultaneously.

Specs

Resolution: 4K@60Hz 4:4:4

Frame Rate

Signal Type: HDMI 2.0 with HDCP 2.2/1.4; HDR10, xvYCC, Dolby TrueHD/DTS-HD MA, 3D

Inputs: 4 HDMI

Outputs: 4 HDMI, 4 S/PDIF, 4 Balanced Stereo Audio

Setup

First Use: Unpack, review manual, check for firmware upgrades.

Video Optimization: Use quality cables, avoid tight bundles, electrical interference, moisture, direct sunlight, and dust.

Control: Front panel, RS-232, IR remote, web interface.

Support

Tech Support Email: info@KramerAV.com

Power Cycle: Disconnect the power and unplug the unit from the wall before installing.

Factory Reset: Protocol 3000: "#factory" command. Web Pages: Device Settings page, Soft Factory Reset resets all parameters to factory default except for network parameters.

About this driver

driver.source()

Confirm each command on your device before you rely on it. Provided as is, with no warranty. To correct something or ask for it to come down, write to info@ctrlbot.io. Licensed CC BY 4.0: credit CTRLbot and link back when you share it. Product page. Manufacturer site.

Revision
1
Updated
2026-11-05
Catalog date
2026-11-12
License
CC-BY-4.0