Configuration Issues For Radios - Bristol Babcock Network 3000 Setup Manual

Chapter 4 - Guidelines For Configuring the BSAP Data Link

Configuration Issues For Radios

Bristol Babcock Network 3000 equipment has been used successfully with several
different brands and types of radios.
The configuration of the radio interface varies depending upon the type of radio,
particularly with respect to cabling and timing. A full discussion of radio
configuration is beyond the scope of this book, however, here are some items to be
aware of:
• Some radios have fixed speed internal modems and some synthesized. Most
radios today are configurable in several different ways including frequency,
baud rate, and pre and post data delays. As far as cabling, all radios use the full
RS-232 compliment except the Spread Spectrum type including Microwave Data
Systems (9810) and Freewave brands.
• Spread Spectrum radios only use TxD, RxD, and Signal Ground. The RTU at
each of these sites must have either an internal jumper on the connector
between RTS and CTS on the RTU end or the loopback switches on the
communications engine board enabled.
• The MDS licensed radios (2310, 4310, 4710, 9710, etc.) and DataRadio (formally
EF Johnson) use TxD, RxD, RTS, CTS, DSR, DCD, DTR, and Signal Ground and
no loopback enabled. The master radio companions of these radios also use the
full compliment. Timing parameters of these radios are different too. MDS
radios are faster as far as key speed and receive speed than DataRadio are.
• If there is a repeater in the system, some configuration parameters can change.
A tail-end-link setup in a system is another scenario which will include a modem
sharer in addition to two radios working together to send the data further down
the road similar to a repeater. The modem sharer is necessary in the data line if
there is a co-located RTU at the site.
For additional technical assistance in using radios with Bristol equipment, contact
our Communication Technologies division in Orlando, FL at the number listed on
page ii.
Network 3000 Communications Configuration Guide Page 4-37