Справочник Пользователя для Q-Logic QLA12160
Termination (Jumpers) for the QLA12160
B – SCSI Termination
B-2
DC8151101-00 C
The QLA12160 board jumper block is illustrated in
.
.
Figure B-1. QLA12160 Jumper Termination
The following paragraphs give manual termination instructions.
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Termination disabled. Removing the jumpers from J5 and J6 disables
termination for port one. Use this configuration for wide devices daisy
chained to J1 and J3 with a single cable, or when J1 or J3 is not at the end
of the cable. Removing the jumpers from J7 and J8 disables termination for
port two. Use this configuration for wide devices daisy chained to J2 with a
single cable, and J2 is not at the end of the cable.
termination for port one. Use this configuration for wide devices daisy
chained to J1 and J3 with a single cable, or when J1 or J3 is not at the end
of the cable. Removing the jumpers from J7 and J8 disables termination for
port two. Use this configuration for wide devices daisy chained to J2 with a
single cable, and J2 is not at the end of the cable.
■
Termination enabled. Putting jumpers on pins 2–3 of J5 and J6 enables
termination for port one. Use this setting when a wide device is connected
to J1 or J3. Putting jumpers on pins 2–3 of J7 and J8 enables termination
for port two. Use this setting for a wide device connected to J2.
termination for port one. Use this setting when a wide device is connected
to J1 or J3. Putting jumpers on pins 2–3 of J7 and J8 enables termination
for port two. Use this setting for a wide device connected to J2.
■
High only. Putting a jumper on pins 2–3 of J5 and removing the jumper from
J6 enables high termination for port one. Use this setting for a wide device
connected to one connector and a narrow device connected to the other.
J6 enables high termination for port one. Use this setting for a wide device
connected to one connector and a narrow device connected to the other.
ISP CHIP
J9
1
J6 J7J8
4
J5
3 3 3 3
SCSI LED
DC8110402
QLA12160 (DC8110402)