Syn-Tech Systems FuelMaster FMU-2500 Classic Installation Manual page 107

422/232 converter will be needed. Follow the manufacturer's recommendations for attaching
the converter. Product Bulletin 69 describes the connection of a Patton Electronics 222N.
f. Check the communications parameters set in the tank monitor: data bits, stop bits, parity, and
baud rate. The same parameters must be set in the FMU for an effective communications
interface. The parameters may be set with a laptop connection and command 5a, or by a dial-in
from the Syn-Tech Customer Satisfaction Center.
10. Satellite Connections (see Figure 4-31). Both master and satellite FMUs must be equipped with a
Satellite Option (STS part number 200034A) to accept the wire terminations and provide the
necessary internal interface cables. This option is standard equipment in each satellite FMU, but an
extra price option in master FMUs. This option is not required with an EIU. EIUs have other
provisions for connection to a master FMU. See Figure 4-34 to make an EIU connection.
Master-satellite connections are hardwired with RS-422, or wireless connected. The use of B&B
Electronics Zlinx Radio Modems for a wireless connection is described in Product Bulletin 133. A kit
including a pair of Zlinx Radio Modems is available from Syn-Tech under part number 249912.
Perform the following to make a hardwire master-satellite connection:
a. Jumpers must be installed on S1, SATELLITES INSTALLED JUMPERS, in the upper right
corner of the Satellite I/O Control Board. Jumper positions are numbered 1 through 8. The
master FMU must have a jumper installed in each position which corresponds to the satellite
connectors in use on the I/O Silver Board. Example: if satellites are connected to positions 1, 2,
and 3 of the master FMU I/O Silver Board, jumpers must be installed in positions 1, 2, and 3 of
S1. The satellite must have one jumper installed in the position corresponding to the position in
use on the I/O Silver Board. In most cases, this will be position 1.
b. An I/O Silver Board must be installed in each FMU, and contain the appropriate number of
connectors JP1 through JP8, and 5-pin terminal plugs, to make the required master-satellite RS-
422 cable connections.
c. Ribbon cable part number 209023 is connected between SATELLITE CONNECTORS J5 and/or
J6 on the Satellite I/O Control Board, and JP9 and/or JP10 of the I/O Silver Board. On the
Satellite I/O Control Board, use J6 for satellites 1 through 4, and J5 for satellites 5 through 8. On
the I/O Silver Board use JP9 for satellites 1 through 4, and JP10 for satellites 5 through 8.
d. Pull an RS-422 cable from the master to each satellite to be connected. Cables cannot be daisy-
chained from one satellite to the next. Each satellite must have an RS-422 cable routed to the
master FMU.
e. Note the RS-422 COMMUNICATIONS WIRING chart at the bottom of Figure 4-31, and make the
cable connections in both FMUs leaving the cable drain disconnected at one end.
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Installation Manual
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