16■ Rear viewt y u i o !0q w e r qq Handle for maintenancePull this handle after removing the 5 screws (indicated bythe triangles) to open the rear panel for maintenance suchas replacement of the fan, etc.w Alarm/Control connector (ALARM/CONTROL, D-sub25-pin, female)Connect a control switch with this D-sub 25-pin connectorto control the recorder using an external device, or to con-trol an alarm device such as a buzzer or a lamp.e Alarm connector (ALARM, D-sub 25-pin, female)Connect an external device such as a sensor or a doorswitch with this D-sub 25-pin connector.r Cable clamp fixing holesAttach the cable clamp provided with the extension unitWJ-HDE400 to be used to fix the cables.Refer to the operating instructions of the extension unitWJ-HDE400 for further information.t External storage connector (EXT STORAGE)Use this connector to connect to the extension unit(WJ-HDE400).y Client PC portUse this port to connect the recorder to a network com-patible with 10BASE-T, 100BASE-TX or 1000BASE-T toconnect with a PC via a network.u Camera portUse this port to connect the recorder to a network com-patible with 10BASE-T, 100BASE-TX or 1000BASE-T toconnect with a camera via a network.i Signal ground terminal (SIGNAL GND)Connect this terminal with the SIGNAL GND terminals ofthe devices in the system for signal ground. When operat-ing the recorder and the devices in the system without sig-nal ground, oscillation or noise may be produced.o Power cord inlet (AC IN)Connect the provided power cord to this inlet.!0 [POWER] switchTurns the power of the recorder on and off.● Power cord plug braceBrace the power cord plug.1 Fix the power cord plug firmly with the power cordplug brace.Brace