Fujitsu MAW3147NC/NP Option select terminal, CN2 Terminal Setting on NP models only, Pin Pin

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 supply	Open ……Drive does not supply terminator power to SCSI 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)