SCSI and I/O 8-85
Jumpering
Setting the SCSI ID
Figure 8-49 shows the rear view of the A3542A
Figure 8-49. A3542A Rear View
There are three significant bits in the ID, giving an ID range of 0 to 7 inclusive as shown:
Table 8-24 SCSI ID
1 = shorted, 0 = open
The HP A3542A reads the SCSI ID at power up and during selftest in order to determine the
selected target ID of the tape drive on the interface bus. Data Compression Control is not used in
this system application. Terminator Power - When jumper is installed, the device will supply ter-
mination power to pin 26 of the SCSI bus. (Note, this device has no on board termination
capability.)
Default Jumper Settings = Term Power Disabled (no jumper)
SCSI ID Bit 2 Bit 1 Bit 0
0 000
1 001
2 010
3 011
4 100
5 101
6 110
7 111
To Next Page
Loading...
