Operation:
The SS1 SCSI Bus Switch allows two hosts to share peripherals or one
host to access either of two sets of peripherals. Each port may be SE,
HVD or LVD. Switching from one port to the other may be accomplished: a.
locally with the front panel switch, b. remotely with a momentary dry
contact closure, or c. remotely via the RS-232 port. A
software template for the RS-232 port
is included in the User Manual. In all cases switching does not occur
until "bus free."
In mode One, Port 1 is connected to the Common Port. In mode Two, Port
2 is connected to the Common Port. A front panel LED displays the
selected port. Each port supports a full SCSI cable length and provides
term power and termination, which may be disabled. The SS1 does not
consume a SCSI device ID, is transparent to both initiator and target,
and does not slow data throughput. Devices on the LVD ports run at SCSI
throughput up to 160 Mbytes/sec, HVD and SE ports run at up to 40
Mbytes/sec. An amber LED for each port indicates bus activity and a
green LED indicates that each port is powered. For a printer friendly version of the Rear View information, please
see the PDF version of
this data sheet.
A front panel 7-segment LED display shows the active port.
