Fujitsu MBA3300NC Installation Manual page 2

Diagram and user-selectable options (on NP models only)
Below is a diagram of the main board of SCSI HDD and also a summary of the user-selectable options including guidelines for installation
of the HDD.
This setting applies only for NP models.
Pin 1
Pin 2
CN2
Pin 23
Pin 24
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 Pin 3-4
Open
Short
Open
Short
Open
Short
Open
Short
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Figure 1. Option select terminal
Table 2. CN2 Terminal Setting (on NP models only)
Setting Item
SCSI ID 0 See Table 3.
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
UNIT command.
......
Short Motor is started immediately after power supply is
turned on or microcode is downloaded.
......
Force Narrow Open 16-bit bus mode
......
Short Pull upper 8bits and parity internally when HDD is
connected to Narrow SCSI bus.
......
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 HDD does not supply terminator power to SCSI bus.
......
Short HDD supplies terminator power to SCSI bus.
Table 3. SCSI ID Setting on CN2 (on NP models only)
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
Function
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)