Keri Systems SB-293 - Manual (Page 58)

Technical Reference Manual – PXL-250 and SB-293 Keri Systems, Inc.
Page 58 P/N: 01836-004 Revision 5.5
9.10.1 Direct PC to Controller Serial Connection
If you are making the connection between access control network and host computer
via a direct serial connection, you must use or create one of the two following cables.
• If the host computer has a male DB-9 connector on the serial port, you must use a
Keri Systems KDP-252 cable or create a cable according to Table 15 and Figure 9-
14, both on page 59.
• If your host computer has a male DB-25 connector on the serial port, you must use
a Keri Systems KDP-251 cable or create a cable according to Table 16 and Figure
9-15, both on page 60.
For Keri Systems' cables, each connector housing will be marked with either "PC
END" or "PXL-250." If you create your own cable, use a permanent marker and mark
each connector housing with the appropriate label (PC or PXL-250). Each connector is
biased so it will fit on its corresponding socket in one direction; you cannot plug in a
connector incorrectly.
Take the completed cable and insert the connector marked PC END into the serial port
connector in the back of the host computer. Insert the connector marked PXL-250 into
the J1 serial port connector at the top of the PXL-250 controller. Each housing on the
serial cable's connectors has two small screws in the housing's case. These screws
correspond with threaded stand-offs on the serial port connector bodies. With a thin-
blade screwdriver, secure these screws to the stand-offs to ensure the cable does not
loosen itself from its serial port connections.