ARRI ERM-2400, User Manual, Page: 6 / 15

3 Introduction
3.1
How It Works
An ERM-2400 LCS set of radio modules basically extends an LCS , LBUS , EXT (CAN bus)
cable connection over air. As such, it can connect ARRI and cmotion hand units to cameras
and motor controllers and they behave as if they were hard-wired, but with an exceptionally
great wireless range.
3.2
Compatibility
The ERM-2400 LCS module is compatible with equipment supporting LCS , EXT and LBUS
protocols.
A pair of ERM-2400 LCS modules can replace a cabled connection between two devices,
for example:
• WCU-4 or SXU-1 and ALEXA Plus camera (LCS socket)
• WCU-4 or SXU-1 and ALEXA Mini camera (EXT socket)
• WCU-4 or SXU-1 and ALEXA Mini LF camera (EXT socket)
• WCU-4 or SXU-1 and UMC-4 (LCS socket)
• Master Grip or OCU-1 and cforce motor
• cmotion cPRO hand unit and cforce motor
• ARRI Wheels DRW-1 and Digital Encoder Head DEH-1
3.3
Handling Transmitter / Receiver
ERM-2400 LCS are supplied as an already paired set of two radio modules, including all
necessary cables. Once connected to handset and camera device, they will power up and
connect automatically.
The modules can be used both as transmitters and receivers.
Pre-configured pairs can be identified through a matching number code at the back of
each device.
ERM for LCS SUP2.3
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NOTICE
The external radio module ERM-2400 LCS has been developed exclusively
for use with the ARRI ECS products and workflows
.
Any other use is not recommended and may damage the modules.
NOTICE
Avoid mixing individual modules with other sets of paired ERMs.
Setup
NOTICE
ERM-2400 for LCS and ERM-2400 for SRH are NOT compatible with one
another.
NOTICE
The OCU-1 / Master Grips override function is not supported with ERM-2400
LCS, because override is not possible in hardwired mode neither.