Installation manual

FuelMaster
®
Installation Manual
47
If a device is mounted in the FMU which requires connection to an electrical outlet, an outlet box must be
installed. Installation of an outlet box is covered in Section 4, Installation.
•
Through a network cable: download through a network cable will require a Cat 5 (or
equivalent) network cable routed from the nearest network connection to the master FMU. For
maximum reliability, it is not recommended that any single run of network cable be greater than 200
feet. If more than one run of network cable must be used, a network switch should be placed at the
juncture of the cables.
•
Through a fiber optic cable: additional range may be achieved through the use of fiber optic
cable. Two strands of fiber optic are needed (preferably more as spares), one for transmit and one for
receive. A transceiver must be installed in the FMU to convert fiber to cable to interface with the FMU
network interface card. The converter installed at the originating end of the fiber optic needs to be
compatible with 100 base network communications.
•
Through a wireless network: communications through a wireless network is a very practical
communications option where the FMU and Central Controller are located within range of the wireless
equipment. The wireless equipment may be tied into an existing network, or added as a point-to-point
network.
The FMU and Central Controller should not contain any secure information. A point-to-point wireless
application connects the FMU to the Central Controller without interfacing your network. Use of such
an interface prevents access by hackers to secure information contained within your network. When
tied into an existing network, consideration must be given to effective wireless network security to
prevent outside access to any secure information contained on your network.
Direct Connect
Direct connect is an RS-232 connection between a PC (normally a laptop) and the FMU. This is a
practical option for communications to the FMU where communications conduit are not available, or
wireless communications are not practical. See Appendix D for instructions in making a direct connection
to an FMU with a laptop. Connection with a desktop may be made following the same guidance. The PC
used to direct connect to the FMU to download transaction data or upload authorization data must use the
FuelMaster® software instead of Hyperterminal or Procomm Plus.
Direct connections between a laptop and an FMU is not possible with DoD software. Direct connections
using Hyperterminal or Procomm is possible between a laptop and FMU. DoD customers desiring direct
connect capability must use a two-way ringdown device between a laptop and FMU, and configure the
software to assume an analog phone line connection.
Though effective communications between the Central Controller and FMU are an option with a direct
connection, FMU communications to a credit card network is not possible by extending an RS-232
connection to a building where it is converted to an analog phone line.
Credit Card Authorization
Credit card authorization for retail operations is through a wired or wireless phone line connection to the
FMU. Reference Through analog phone lines or Through a phone line extender, above, for a
description of the communication methods used for credit card authorization.
Dispenser Compatibility
Dispensers are of two basic types: mechanical and electronic. Mechanical dispensers may be controlled
directly by FuelMaster
®
through a hardwire or cable interface. Sometimes a pulse output option or pulser
must be added to acquire quantity pulses from the dispenser. The dispenser must have a pulse output
accessible by FuelMaster
®
.
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