Syn-Tech Systems FuelMaster FMU-2500 Classic Installation Manual page 143

FuelMaster
Laptop Direct Connect to FMU
Hyperterminal is not an accessory provided on PCs/laptops with the newest operating systems.
Procomm Plus has to be purchased. PuTTY is a free program which may be downloaded and used to
make a PC/laptop connection to FuelMaster
found under Using PuTTY.
The information herein may also be found in Product Bulletin 111. If any information changes, a revision
to the product bulletin will reflect the change.
Several programming and troubleshooting options are possible by direct connecting a laptop to the FMU
through a serial connection to the FMU mainboard. Once the connection is made, select the
communications software to be used and set it up according to the direction provided under Using
Hyperterminal or Using Procomm Plus or Using PuTTY.
A direct connect cable may be purchased from Syn-Tech by ordering part number 941C0105, or you can
make your own. To fabricate a cable, use approximately 20 feet (length needed to get your laptop in a
vehicle out of direct sunlight for easier viewing) of small gauge shielded three conductor cable. A good
example is Belden 8771 with 22 AWG conductors. The cable will need a female DB9 serial port connector
on the laptop end, and a Tyco Electronics part number 102241-3 five-pin connector on the FMU end.
Three each 1-87309-4 contacts are needed to plug the three wires into the 102241-3 connector. The DB9
connector may be of any manufacture.
The pinout for cable wiring is as follows:
If your laptop has a USB port and no DB9 serial port, you will need a USB/serial adapter. An adapter we
have found to work satisfactorily for this application is a USB/serial adapter made by IOGear having part
number GUC232A. They may be purchased through CDW. CDW's part number is 261218. Ensure the
drivers are installed from the accompanying CD or the adapter will not function properly.
Setup Hyperterminal
Hyperterminal may not be provided on some PCs. A free copy for personal use may be downloaded from
the internet, or another similar program (i.e., Procomm Plus) may be used.
Hyperterminal must be run in the laptop to access the FMU. To set up Hyperterminal, perform the
following:
1. Connect the direct connect cable to the laptop DB9 serial connector (or USB/serial adapter) and FMU
SERIAL PORT in the upper left corner of the mainboard.
2. Open the Hyperterminal program on your laptop.
Installation Manual
®
Appendix D
NOTE
. A description of PuTTY and how to get and use it may be
®
DB9
2
3
5
Note
141
102241-3
3
4
1