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General Installation
Figure 3-1: RS-232 1:1 Cable (P/N C04549: 8-foot M/M)
Figure 3-2: DTE Cross Cable (P/N C05039: 8-foot M/M, PN C05928: 8-foot M/F)
RS-232 - Termination Box
A termination box can be purchased from Gasboy and provides the installer with an easy-to-
wire terminal block connected to the proper pins on an RS-232D female connector. The
terminal block will accept up to 18 AWG wire.
RS-422 - Short Haul Modems
A Gasboy short haul modem and the appropriate interconnect cable must be used when the
RS-422 communication mode is being used to communicate to the ports of the TopKAT. It
must be used for distances between 100 and 1500 feet (31 and 455 meters). It can be used for
distances under 100 feet in place of RS-232 wiring. One SHM is required at the remote end of
the communication wiring. See
diagrams.
Installation Requirements
Internationally and domestically: All wiring is to be installed and used in accordance with all
1
applicable national, state, and local building/fire/electrical codes. Additionally, in the USA,
Page 20
"Port Communication Wiring" on page 30
MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
Communication Requirements
for wiring
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