Gasboy 1000 Series FMS Startup Manual - Manual (Page 38)

03/07/03 9-1
Section 9
COMMUNICATIONS TESTS
1. Verify that the external communication devices are located in the proper environments as
described below.
Data
Terminal
When a data terminal is used with the system, it should be located in a clean, office-type
environment. It should not be installed over a hazardous location. Data terminals supplied
by GASBOY have an operative temperature range of 0
o C to 40 o C. Locating the terminal in
a dirty environment may cause premature failures.
External Modems
When an external modem is used with the system, the modem should be located in an office-
type environment. If this is not possible, it should be housed in a protective enclosure. It
should not be installed over a hazardous location. External modems supplied by GASBOY
have an operative temperature range of 0
o C to 40 o C.
2. Verify that the wiring for the communication ports meets the following installation
requirements.
•
All wiring is to be installed and used in accordance with the National Electrical Code
(NFPA 70) and the Automotive and Marine Service Station Code (NFPA 30A). Wiring is
also to conform to local codes.
•
All peripheral equipment connected to the RS-232 ports should be UL-Listed, have an
Electronics Industry Association (EIA) standard RS-232 communications protocol, and
not be installed over a hazardous location.
•
The AC power for the peripheral equipment must be on a separate breaker (which can
be the same as the system’s breaker).
•
RS-232 distance is limited to 100 feet; RS-422 is limited to 1500 feet.
NOTE: For distances over 1500 feet, see the Series 1000 Installation Manual for use of
ME800 Short Haul Modems.
•
Wire
RS-232
22 gauge for use with RS-232D connectors; 18 or 22 gauge for use with
the GASBOY RS-232 termination box
RS-422
Two twisted-pair cable (metal conduit separate from any AC wires)
Two twisted-pair cable, shielded, Belden 8102 or equivalent (metal
conduit not separate from AC wires or indoors with no metal conduit)
3.
Test the communication ports. The required tests will vary according to the type of devices
connected to the ports and the ports used. When testing the ports, the equipment and
communication lines that will be used at the site should be used in the test whenever
possible. It is recommended that a data terminal always be connected to Port 1 (direct
printout port) so that transactions can be logged as they occur.