Figure 4-1. Two-Way Ringdown Device Connection - Syn-Tech Systems FuelMaster FMU-2500 Classic Installation Manual

Connecting a Two-Way Ring-Down Device
If a Two-Way Ring-Down Device is to be used, see Figure 4-1 and position the Two-Way Ringdown
Device where the necessary connections may be made. A two conductor communications cable from the
FMU must be routed to the Two-Way Ringdown Device, then an RJ-11 jack must be installed on the end
of the communications cable for connection into the Device. The two conductors in the cable must be
installed in the two middle positions of the RJ-11 jack. Either conductor may be positioned in either of the
two middle positions. Plug the RJ-11 jack into either receptacle on the face of the Device. The two RJ-11
jacks labeled 1 and 2 on the face of the device are not polarity sensitive. Either cable may be plugged into
either jack. Software setup is the same as for a telephone line connection except the phone number
entered in the software is any two digit (minimum) number.
If at least one data-grade analog USA telephone line is available (possibly to a fax machine), the Two-
Way Ringdown Device should be positioned where a cable may be connected between a jack for the
telephone line and the Two-Way Ringdown Device. This will permit Syn-Tech's Product Support to
modem connect with either the FMU or Central Controller, if necessary. The Two-Way Ringdown Device
uses an AC power adapter much the same as the one used by external modems.

Figure 4-1. Two-Way Ringdown Device Connection

FMU Installation
Mounting the FMU Pedestal
•
Very Important! Leave adequate clearance for parts replacement when selecting a mounting
location. The upper cabinet and pedestal doors must open fully, and any attach screws (Pedestal I/O
Board, Relay Assembly) which enter from outside the FMU must remain accessible.
•
When installing an FMU to comply with Americans with Disabilities Act (ADA) requirements,
consideration must be given to not only the height of FMU controls, but also the overall height on a
fuel island, and the distance from the edge of the fuel island. See ADA Standards for
Transportation Facilities, Chapter 3, paragraphs 306, 308, and 309.
Figure 4-2 illustrates the FMU footprint. The FMU must be mounted on a rigid surface. Asphalt is not a
satisfactory mounting surface. The FMU upper cabinet should not be installed until the pedestal mount is
complete. If desired for a particular application such as an installation in a kiosk, the FMU upper cabinet
may be rotated 180 degrees to permit the pedestal door to open to the inside of the kiosk while the upper
cabinet door faces outside. When using this mount method, leave sufficient work space between the back
FuelMaster
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Installation Manual
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