Diagram And User-Selectable Options (On Np Models Only); Cn2 Terminal Setting (On Np Models Only); Scsi Id Setting On Cn2 (On Np Models Only) - Fujitsu MBA3300NC Installation Manual

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
Open
Short
Open
Short
Open
Short
Open
Short
Figure 1. Option select terminal
Table 2. CN2 Terminal Setting (on NP models only)
Setting Item
Pin #
1-2 SCSI ID 0 See Table 3.
3-4 SCSI ID 1
5-6 SCSI ID 2
7-8 SCSI ID 3
9-10 Write protect Open
Short
11-12 Motor start mode Open
Short
13-14 Force Narrow Open
Short
15-16 Force Single Ended Open
Short
17 GND
18, 19 N.C
20 IDD Reset Input signal
21-22 Remote LED Output signal
23-24 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
Open Open Open
Open Open Open
Short Open Open
Short Open Open
Open Short Open
Open Short Open
Short Short Open
Short Short Open
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 HDD is
connected to Narrow SCSI bus.
......
Follows DIFFSNS signal level on SCSI bus.
......
Single-Ended mode
......
HDD does not supply terminator power to SCSI bus.
......
HDD supplies terminator power to SCSI bus.
ID Pin 1-2 Pin 3-4 Pin 5-6
0 Open Open Open
1 Short Open Open
2 Open Short Open
3 Short Short Open
4 Open Open Short
5 Short Open Short
6 Open Short Short
7 Short Short Short
(default)
(default)
(default)
(default)
(default)
Pin 7-8 ID
Short 8
Short 9
Short 10
Short 11
Short 12
Short 13
Short 14
Short 15 (default)