33Connection of an extension unitUp to 3 extension units (optional) can be connected to a single recorder. Use the dedicated cable (provided with the extensionunit) to connect between the extension unit and the recorder.When connecting multiple extension units (WJ-HDE400/G) or when newly adding extension units, connect as follows. Refer alsoto the operating instructions of the extension unit.Important:• Make sure to use the dedicated cable provided with the extension unit to connect.• Fix the cable provided with the extension unit firmly using the cable between the recorder and extension unit. When the cableis not connected firmly or when it is disconnected, the system may become unstable or recording may fail.• Do not loop and bundle the cable in a circle.• When installing the recorder or the extension unit in the rack, make a space of 1U (44 mm) above and below each of themfor ventilation.EXT INPOWER ONOFFEXT INPOWER ONOFFEXT INPOWER ONOFFEXT STORAGE MODE DATAALARMVIDEOOUT-CASCADE- INALARM/CONTROL CASCADE INMONITOROUTOUT MONITOR OUT(HD) AUDIO IN AUDIOOUT3 2 1 1 2 3 4 5 6 7 812344 23 1125678910111213141516INOUT2134567712128910111213141516POWERAC IN SIGNALGNDONOFFOUTINOUTCASCADE12123Extension unit (Unit number: 3)Extension unit (Unit number: 2)Extension unit (Unit number: 1)Connection cable (provided with the extension unit)RecorderAttach the cable clamp to each connection cable.Refer to the operating instructions of the extensionunit for how to attach the cable clamp.Fix the connection cableFix the connectioncable
