General Installation
Component Location and Installation Specifications
Page 8
MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
Component Location and Installation Specifications
Careful planning for the layout of the site will help eliminate possible problems with the start-
up of your system and will ensure continued, reliable system operation.
System
Regardless of your installation option, the TopKAT must be located on the fuel island. The
unit has been designed to withstand an environment of -22
o
F to 122
o
F (-30
o
C to 50
o
C), 95%
relative humidity, non-condensing. When mounting the unit, a minimum clearance of 18
inches must be maintained between the post and any of the pumps or dispensers. This
clearance meets the NFPA 30A and NFPA 70 requirements and allows room for wiring and
maintenance of the system. Adequate clearance around the head of the unit is important to
provide room for maintenance of the system. A minimum of 14 inches of clearance from the
rear of the unit must be provided to allow the rear door to open.
Data Terminal
When a data terminal is used with the system it must be UL-Listed and should be located in a
clean, office-type environment. Do not install over a hazardous location. Data terminals
supplied by Gasboy have an operative temperature range of 32
o
F to 104
o
F (0
o
C to 40
o
C).
Locating the terminal in a dirty environment may cause premature failure. See
Communication Wiring” on page 30
for your installation type for connection of a data
terminal.
Extermal Modem
When an external modem is used with the system it must be UL-Listed and should be located
in an office type environment. However, if this is not possible, it should be housed in a
protective enclosure. Do not install over a hazardous location. External modems supplied by
Gasboy have an operative temperature range of 32
o
F to 104
o
F (0
o
C to 40
o
C). The type of
phone line required for communication via an external modem is contingent upon the type of
modem used and the method of communication desired. Consult the manual that comes with
the modem for specific requirements. See
“Port Communication Wiring” on page 30
for your
installation type for connection of an external modem.
Internal Modem
When the TopKAT is equipped with the optional internal modem, port 3 communication is
routed through the modem in place of being wired at the DC junction box. Jumper K2 should
be removed. See
“Terminal Block ID” on page 22
for location of jumpers K1 & K2. The
phone line for the internal modem can be installed in the DC conduit. If installing in DC
conduit, cable must be two twisted-pair shielded cable as specified in
and the shield drain wire must be connected to the system AC
ground. Check with your local phone company for proper installation of the phone line.
If you order your TopKAT with an optional internal modem, the modem is mounted within the
TopKAT at the factory and power for the modem is supplied by the TopKAT. The 2400 baud
modem is designed for 300, 1200, or 2400 baud, full duplex, asynchronous communication.
The 33600 baud modem is designed for 1200, 2400, or 9600 baud, full duplex, asynchronous
