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 2

CN2

Pin 24

Figure 1. Option select terminal

Table 2. CN2 Terminal Setting (on NP models only)

Pin #

Setting Item

Function

 

 

 

 

 

 

 

 

 

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 ……Write operation is enabled.

(default)

 

 

 

 

 

 

Short ……Write operation is disabled.

 

 

 

 

 

11-12

Motor start mode

Open ……Starting of motor is controlled with START/STOP

 

 

 

UNIT command.

 

 

 

 

 

 

 

Short ……Motor is started immediately after power supply is

(default)

 

 

turned on or microcode is downloaded.

 

 

 

 

 

13-14

Force Narrow

Open ……16-bit bus mode

(default)

 

 

 

 

 

 

Short ……Pull upper 8bits and parity internally when drive is

 

 

 

connected to Narrow SCSI bus.

 

 

 

 

 

15-16

Force Single Ended

Open ……Follows DIFFSNS signal level on SCSI bus.

(default)

 

 

 

 

 

 

Short ……Single-Ended mode

 

 

 

 

 

17

GND

 

 

 

 

 

 

18, 19

N.C

 

 

 

 

 

 

20

IDD Reset

Input signal

 

 

 

 

 

21-22

Remote LED

Output signal

 

 

 

 

 

23-24

Terminal power

Open ……Drive does not supply terminator power to SCSI

 

 

supply

bus.

 

 

 

 

 

 

 

Short ……Drive supplies terminator power to SCSI bus.

(default)

 

 

 

 

Table 3. SCSI ID Setting on CN2 (on NP models only)

 

Pin 1-2

Pin 3-4

Pin 5-6

Pin 7-8

ID

Pin 1-2

Pin 3-4

Pin 5-6

Pin 7-8

ID

 

 

Open

Open

Open

Open

0

Open

Open

Open

Short

8

 

 

Short

Open

Open

Open

1

Short

Open

Open

Short

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Open

Short

Open

Open

2

Open

Short

Open

Short

10

 

 

Short

Short

Open

Open

3

Short

Short

Open

Short

11

 

 

Open

Open

Short

Open

4

Open

Open

Short

Short

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short

Open

Short

Open

5

Short

Open

Short

Short

13

 

 

Open

Short

Short

Open

6

Open

Short

Short

Short

14

 

 

Short

Short

Short

Open

7

Short

Short

Short

Short

15

(default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Fujitsu MAU3036NC/NP Diagram and user-selectable options on NP models only, Scsi ID Setting on CN2 on NP models only

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