Fujitsu MAP3147NP Installation Manual page 2

Diagram and user-selectable options (on NP models only)
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 NP model drives.
Pin 1
Pin 23
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
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Pin 2
CN2
Pin 24
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
......
Short
......
Motor start mode Open
......
Short
......
Force Narrow Open
......
Short
......
Force Single Ended Open
......
Short
GND
N.C
IDD Reset Input signal
Remote LED Output signal
......
Terminal power supply Open
......
Short
Table 3. SCSI ID Setting on CN2 (on NP 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
Function
Write operation is enabled.
Write operation is disabled.
Starting of motor is controlled with START/STOP
UNIT command.
Motor is started immediately after power supply is
turned on or microcode is downloaded.
16-bit bus mode
Pull upper 8bits and parity internally when drive is
connected to Narrow SCSI bus.
Follows DIFFSNS signal level on SCSI bus.
Single-Ended mode
Drive does not supply terminator power to SCSI bus.
Drive supplies terminator power to 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)