Adapter cable to connect the ERM LCS to the WCU-4, SXU-1 UMC-4 and ALEXA Plus camera via the LCS socket. Recommended and required optional extension cables: SRH FS CAN Bus Cable, 1m/3.2ft K2.0033762 SRH FS CAN Bus Cable, 10m/32.8ft K2.0019302 SRH FS CAN Bus Cable, 25m/82ft K2.0019301 For ERM LCS only