Owner`s manual

If you are installing a PS-4A, please proceed to
Section 4.6
.
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PS-4C AND PS-4E: SERIAL INTERFACE
SELECTION
Serial ports on the PS-4C and PS-4E may use either EIA-232 or EIA-422
serial interface. The serial interface is configured via hardware jumper
settings. Most serial printers and plotters support EIA-232 serial interface
(default). This generally limits the serial speed and maximum cable
distance. EIA-422 serial interface allows you to run at high speeds (up to
460,800 bps) over long cable distances (up to 1000 feet). Some printers
may be equipped with an EIA-422 port. BayTech supplies a high speed
EIA-422 serial to parallel converter (Tran-x SP-01) which would allow
your printer to operate in parallel up to 1000 feet at 460,800 bps.
NOTE:
If you will be connecting a Tran-x high speed converter, you must
reconfigure the serial interface of the port(s) to EIA-422. If you will be
connecting any EIA-232 serial printers, plotters, or modems, you must
use EIA-232 serial interface (default).
Serial interface selection should be done before any other hardware
installation such as connecting cables or applying power. Once you have
made any necessary changes for serial interface, you may review the
user-programmable features (see
Section 4.6
).
If you must reconfigure the serial interface for any of the peripheral ports
on the PS-4C or PS-4E, you will need a phillips-head screwdriver. Please
use the following instructions:
1.
IMPORTANT:
Remove power from the unit by first unplugging
the AC converter from the AC socket and then removing the DC
jack from the
POWER
receptacle.
2. Remove the cover of the unit by first unscrewing the 2 screws
located on the front panel with the phillips-head screwdriver.
Next, remove the front panel and then slide the top panel off.