24
6 x 4 ELECTRONIC SCSI SWITCH
5.3 Selecting Internal Terminator Power
Onboard SCSI Switch terminators can be powered by internal 5-volt power or
externally from SCSI-bus “termination power” (TERMPWR).
Figure 5-1. Internal terminator-power jumpers.
Table 5-1. Jumper settings for internal termination.
E1 - Port A E3 - Port C E5 - Port 1 E7 - Port 3 E29 - Port 5
E2 - Port B E4 - Port D E6 - Port 2 E8 - Port 4 E30 - Port 6
NOTE
The standard factory default connects internal terminators to internal
5-volt power.
5.4 Selecting External Terminator Power
The SCSI Switch can supply external terminator power via an internal resettable
fuse. This fuse supplies 1 amp at 5 volts to the TERMPWR signal. The SCSI Switch
contains internal protection and will not be affected if other SCSI devices provide
terminator power.
Figure 5-2. External terminator-power jumpers.
Table 5-2. Jumper settings for external termination.
E19 - Port A E23 - Port C E20 - Port 1 E24 - Port 3 E27 - Port 5
E21 - Port B E25 - Port D E22 - Port 2 E26 - Port 4 E28 - Port 6
NOTE
The standard factory default connects internal terminators to internal 5-volt
power.
E19-E28
