-3- Appearanceq Operate Indicator [OPERATE]Lights in green while the power is supplied to theunit. Lights in orange when a thermal error is detect-ed inside the unit.w HDD Access Lamps [HDD 1] [HDD 2] [HDD 3][HDD 4]Lights while the HDD is accessed. Do not turn offthe POWER switch while any of the access lamps islit.e Front LidsFour HDD openings are prepared inside the exten-sion unit. Remove the lid to install the HDD. Replacethe lid after installation.r SCSI In connector [EXT IN]Connect the WJ-HD500 or other Extension Unit witha SCSI cable.t SCSI Out connector [EXT OUT]Connect another Extension Unit with a SCSI cable.y SCSI ID Switch [SCSI ID –/+]Press the upper or lower selector with a small head-ed screw driver to select the desired SCSI ID in thechain.q ewHDD 1HDD 2HDD 3HDD 4Extension Unit WJ-HDEOPERATEOPERATE LED WILL CHANGE TO ORANGEIF THE INSEDE TEMPERATURE EXCEEDS OR FALLS BELOW THE LIMIT. Front Viewu Termination Switch [TERMINATE ON/OFF]Set this switch to ON when the extension unit islocated at the end of SCSI chain. Set this to OFFunless the unit is located at the chain end.i Terminal Board [THERMAL ERROR OUT] [G]A thermal error signal is supplied and OPERATELED lights in orange when the inside temperatureexceeds or falls below the limit. Connect these ter-minals with the WJ-HD500.[NC]: No connectiono Cooling Fan!0 AC Inlet [AC IN]Connect the supplied power cord.!1 Power Switch [POWER]Turn on this switch (peripherals) first, then the powerof the WJ-HD500.Confirm all HDD access lamps go out before turningoff this switch. Switch off the power of the WJ-HD500 first, then turn off this switch (peripherals).!2 Signal GND Terminal [SIGNAL GND]Connect this terminal with other equipment’s SIG-NAL GND to avoid possible grounding loop andnoise if required. Rear ViewSIGNAL GNDPOWERAC INSCSI IDEXT OUTEXT INTERMINATORGTHERMAL ERROR OUTNC+–OFFONONOFFr t y u i o !0 !2!1
