Syn-Tech Systems FuelMaster FMU-2500 Classic Installation Manual page 188

FuelMaster Installation Manual
®
Other applications (tank monitor, satellite FMUs) may be incorporated on the board as well as the
Electronic Dispenser Interface. If an existing FMU has an I/O Silver Board for another application, and an
Electronic Dispenser Interface is needed, specify the other application in the order. An I/O Silver Board to
support the other applications as well as the
Electronic Dispenser Interface.
CAUTION
Remove FMU power before installing or
removing the Quad UART board. Failure to
remove FMU power may result in damage
to the Quad UART Board.
Quad UART Board. A Quad UART Board
is supplied with the Electronic Dispenser
Interface Kit. Preparation of the board is
dependent upon its revision level. Figures
H-6 and H-7 illustrate the Revision B and
Revision E Quad UART Boards. The only
prep necessary on the Revision B board is
the two jumpers that must be installed in
the upper RS232 positions of J9 and J10 of
SER PORT D. Serial port D is the only
serial port that may be used with the
Electronic Dispenser Interface Kit.
If you are working with a Revision E Quad
UART Board (see Figure H-7), there is
more preparation. There are three jumpers
to be installed over the RS232 positions of
J9, J10, and J21 of SER PORT D. Serial
port D is the only serial port that may be
used with the Electronic Dispenser
Interface Kit.
In the middle of the Revision E board is a
MASTER MODEM JUMPER. This is for
another application, and the jumper should
be removed. Above and to the left of the
MASTER MODEM JUMPER are two
QUART2/QUART3 jumpers. These jumpers
should be in the QUART2 position.
NOTE
The 941B0244 cable is an RS-232 cable. RS-232 is normally limited to 50 feet. The 50 foot limitation has
been exceeded in other cases by increasing the size of the conductors, and the quality of the cable. If the
signal carrying capability of the cable is in doubt, test the connection above ground before pulling the
cable through conduit.
941B0244 Cable. The 941B0244 cable for connection from the FMU I/O Silver Board to the PIE
Controller is only 40 inches long, but is open ended and may be extended by splicing cable to the open
end. The 941B0244 cable is made from Belden 8771. Belden 8771 is not wet-rated for use in
underground conduit. If the extended cable must be pulled through underground conduit, a different cable
type must be used that is wet-rated. A shielded cable with 3 or more 22 AWG (or larger) stranded,
insulated conductors is recommended. This cable should not be pulled in the same conduit with AC
power wires.
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