Northern Telecom BCS35 Replacement Manual page 151

Table 14–1
SCSI crossover circuit pack (A15 and B15) options – part number: NT6M93AA; 380–Mbyte
disk drives with 56K polling; 760–Mbyte, 1.7 GB disk drives, all instances
Device type
(number)
Jumper 1 – 2
(J5) 2 – 3
Strap None used
DIP None used
Switch
Rotary None used
Switch
Switch None used
Notes:
Note 1: See Figure 14–1.
Note 2: There are no customer–definable options on this circuit pack. Information is shown for reference only. Use this data
for verification during initial DPP system installation and/or circuit pack replacement to make sure the replacement pack is
set–up the same as the pack being replaced.
Note 3: For the SCSI Crossover circuit pack at position A15, make sure jumper J5 is set for selecting the disk drive in the A
chassis.
Note 4: For the SCSI Crossover circuit pack at position B15, make sure jumper J5 is set for selecting the disk drive in the B
chassis.
Position/setting
disk A
disk B
SCSI Crossover circuit pack 135
Function
Disk A select
Disk B select
DPP Card Replacement Guide BCS35 and up
Setting
Factory On–site
A/B
(refer to
notes 3
and 4)