Gasboy TopKAT Fuel Management System Installation - Manual (Page 29)

MDE-4319E TopKAT™ Fuel Management System Installation Manual · August 2008 Page 23
Communication Requirements General Installation
Installation Requirements
• Internationally and domestically: All wiring is to be installed and used in accordance
with all applicable national, state and local building/fire/electrical codes. Additionally, in
the USA, installations must comply with the National Electrical Code (NFPA 70), NFPA
30, and the Automotive and Marine Service Station Code (NFPA 30A) codes and
regulations. Canadian installations must comply with the Canadian Electrical Code.
• Power: The AC power for the SHM must come from the same breaker that supplies the
peripheral device or the system (micro feed).
• Cable: A twisted-pair shielded cable is highly recommended for RS-422 wiring. Although
it is recommended that wires be run in a conduit away from AC wires, they can be
combined in the same conduit with AC wires, provided a UL-listed cable with the
following specifications is used:
- Conductor: 18 AWG stranded wire; two twisted-pairs
- Shield: Foil-wrapped 100% coverage and/or tinned copper braid 90% coverage
- Drain Wire: Stranded, tinned copper, 20 AWG or larger/or braided shield
- Voltage Rating: Maximum operating voltage of 600 V
- Environmental: Gas and oil-resistant; suitable for wet or dry locations
Gasboy can supply Belden 1063A (Part Number C09655) which is a UL-listed, 4-
conductor cable that meets the requirements listed above.
Note:Belden 1063A is UL-listed but not CSA-listed.
Cable with a voltage rating of less than 600 V must be installed in a separate conduit away
from all AC wires.
These modems must be connected with private lines and will not work if connected into a
telephone network.
• Conduit: When you use the recommended shielded twisted-pair cable described
previously, RS-422 wires can be run with AC wires in a metal conduit. The shield drain
wire must be connected to the system AC ground. Only AC wires for the system and
pumps can be installed in the AC conduit. Do not run the cable outdoors without the use of
metal conduit. Do not run this cable overhead when outdoors.
• The cable can be run indoors without the use of a metal conduit. The shield drain wire
must be connected to the system AC ground (at one end only).
• If you use a cable other than what was recommended previously, the RS-422 field wires
must be installed in a metal conduit away from any AC wires.
• Distance: The maximum field wiring cable length must not exceed 1500 feet (455 m).