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Diagram and user-selectable options
Below is a diagram of the main board of SCSI disk drives and also a summary of the user-selectable options including guidelines for
installation of the drives.
This setting applies only for MP model drives and does not apply for MC model drives.
CN2
Pin1 (Disk enclosure) side
MAN series (MP models)
Pin #
1-2
3-4
5-6
7-8
9-10
11-12
13-14
15-16
17
18, 19
20
21-22
23-24
Pin 1-2
Open
Short
Open
Short
Open
Short
Open
Short
All manuals and user guides at all-guides.com
CN2 Terminal Setting (on MP models only)
Setting Item
SCSI ID 0
See "SCSI ID Setting on CN2 (on MP models only)" Table
SCSI ID 1
SCSI ID 2
SCSI ID 3
......
Write protect
Open
Write operation is enabled.
......
Short
Write operation is disabled.
......
Motor start mode
Open
Starting of motor is controlled with START/STOP
......
Short
Motor is started immediately after power supply is
......
Force Narrow
Open
16-bit bus mode
......
Short
Pull upper 8bits and parity internally when drive is
......
Force Single Ended
Open
Follows DIFFSNS signal level on SCSI bus.
......
Short
Single-Ended mode
GND
N.C
IDD Reset
Input signal
Remote LED
Output signal
......
Terminal power supply
Open
Drive does not supply terminator power to SCSI bus.
......
Short
Drive supplies terminator power to SCSI bus.
SCSI ID Setting on CN2 (on MP models only)
Pin 3-4
Pin 5-6
Pin 7-8
ID
Open
Open
Open
0
Open
Open
Open
1
Short
Open
Open
2
Short
Open
Open
3
Open
Short
Open
4
Open
Short
Open
5
Short
Short
Open
6
Short
Short
Open
7
CN2
Pin1 (Disk enclosure side)
MAM series (MP models)
Function
UNIT command.
turned on or microcode is downloaded.
connected to Narrow SCSI bus.
Pin 1-2
Pin 3-4
Pin 5-6
Pin 7-8
Open
Open
Open
Short
Short
Open
Open
Short
Open
Short
Open
Short
Short
Short
Open
Short
Open
Open
Short
Short
Short
Open
Short
Short
Open
Short
Short
Short
Short
Short
Short
Short
(default)
(default)
(default)
(default)
(default)
ID
8
9
10
11
12
13
14
15
(default)
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