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Connection with the Extension Units
SCSI Connection
The Digital Disk Recorder WJ-HD500A controls
the extension units through the SCSI chain.
1. Connect the supplied SCSI cable between
the EXT STORAGE port on the WJ-HD500A
and the EXT IN port on the 1st extension
unit.
2. Connect the supplied SCSI cable between
the EXT OUT port on the 1st extension unit
and the EXT IN port on the 2nd extension
unit.
Repeat connections in the same manner for
all additional extension units.
3. The 3rd extension unit must be a WJ-
HDE505 if a further extension unit is con-
nected. Use WJ-HDE500 if the 3rd unit is
located at the end of the SCSI chain.
Up to 6 extension units can be added.
Switch Setting
Data termination and SCSI number settings are required, as
shown below.
1. Set the MODE switch #2 on the rear of the WJ-HD500A
to ON when connecting with an extension unit.
2. Set the SCSI ID number for each unit by pressing the
[–] or [+] button on the rear of the Extension Unit.
0 to 5 are applicable to the extension units.
Note: SCSI ID 6 and 7 are reserved for WJ-HD500A
Disk Recorder.
3. Set the termination switches on the rear of the Extension
Units to ON or OFF.
ON: Is applied to the extension unit located at the end
of the SCSI chain.
OFF: Is used for units other than the end unit.
Digital Disk Recorder
IN
EXT STORAGE
EXT STORAGE
SPOT
OUT
OUT
CONTROL
ALARM
MULTI SCREEN OUT AUDIO
16
15
14
13
12
11
10
IN
OUT
16
15
14
13
12
11
10
Extesion Unit #1
WJ-HDE500
SCSI ID = 5
EXT IN
EXT IN
EXT OUT
EXT OUT
AC IN
C IN
PO
POWER
WER
SCSI ID
SCSI ID
TERMINATOR OR
TERMINA
ON ON
OFF
OFF
SIGNAL GND
SIGNAL GND
Extesion Unit #2
WJ-HDE500
SCSI ID = 4
EXT IN
EXT IN
EXT OUT
EXT OUT
AC IN
C IN
POWER
PO
WER
SCSI ID
SCSI ID
TERMINA
TERMINATOR OR
ON ON
OFF
OFF
SIGNAL GND
SIGNAL GND
Extesion Unit #3
WJ-HDE500 or
WJ-HDE 505*
SCSI ID = 3
EXT IN
EXT IN
EXT OUT
EXT OUT
AC IN
C IN
PO
POWER
WER
SCSI ID
SCSI ID
TERMINATOR OR
TERMINA
ON ON
OFF
OFF
SIGNAL GND
SIGNAL GND
* Use a WJ-HDE505 for the 3rd unit position if additional units are installed.
Use a WJ-HDE500 if the 3rd position is the end of the SCSI chain.
WJ-HD500A
SCSI ID = 6 and 7
COPY
GEN-LOCK OUT
SIGNAL GND
REMOTE(WV-CU50)
DATA
10/100
BASE-T
AC
SERIAL
IN
MODE
9
8
7
6
5
4
3
2
1
ON
OFF
9
8
7
6
5
4
3
2
1
POWER
VIDEO
Extesion Unit #4
WJ-HDE500
SCSI ID = 2
EXT IN
EXT IN
EXT OUT
EXT OUT
SCSI ID
SCSI ID
ON
ON
TERMINA
TERMINATOR OR
OFF
OFF
ON ON
OFF
OFF
Extesion Unit #5
EXT IN
EXT IN
EXT OUT
EXT OUT
SCSI ID
SCSI ID
ON
ON
TERMINATOR OR
TERMINA
OFF
OFF
ON ON
OFF
OFF
Extesion Unit #6
EXT IN
EXT IN
EXT OUT
EXT OUT
SCSI ID
SCSI ID
ON
ON
TERMINATOR OR
TERMINA
OFF
OFF
ON ON
OFF
OFF
1 2 3 4
ON
MODE
SCSI ID
–
1
+
TERMINATOR
ON
OFF
AC IN
C IN
POWER
PO
WER
ON
ON
OFF
OFF
SIGNAL GND
SIGNAL GND
WJ-HDE500
SCSI ID = 1
AC IN
C IN
POWER
PO
WER
ON
ON
OFF
OFF
SIGNAL GND
SIGNAL GND
WJ-HDE500
SCSI ID = 0
AC IN
C IN
PO
POWER
WER
ON
ON
OFF
OFF
SIGNAL GND
SIGNAL GND
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