24
HIGH SPEED COS-4 AND HIGH SPEED COS-8
Figure 4-1. A computer switching between four serial printers and
two modems through the High Speed COS-8.
Computer
Serial Line
Printers
Serial Laser
Printers
Modems
RS-232 cables
(ECM12C)
High Speed
COS-8
(SW283A)
4.3 Power Connection
NOTE
The input voltage and frequency requirements of the included power-
supply adapter (identified on the transformer’s label) probably match the
voltage and frequency output by your local electric utility, but check just
to make sure.
Lastly,
when you are ready for the unit to start operating
, plug the output cord of
the High Speed COS-4’s or COS-8’s power-supply adapter into the power
socket (barrel jack) on the COS, then plug the adapter into a working outlet.
The unit will power up
immediately
—it has no ON/OFF switch—and will
perform a quick self-test. Digits 0 through 9 will appear in the 7-segment
display as the COS tests its internal circuitry, and then the display will show
“1” as the unit establishes a default connection between Port 0 (the master
port) and Port 1.
Your High Speed COS-4 or COS-8 is now ready for continuous operation.
Summary of Contents for High Speed COS-4
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