User's Manual

INSTALLATION

©©

234839, Revision 2.2

Press ‘Esc’ (escape) twice.

Press ‘Y’ to exit

Menu.

This will establish a communications link. The N

ETWORK

INK

, C

ARRIER

ETECT

and O

NLINE

LEDs

will be activated and the T

RANSMIT

and R

ECEIVE

LEDs will flash as information is passed.

RFI-9256 Location

Placement of your RFI-9256 unit is likely to have a significant impact on its performance. A general

rule-of-thumb is that the higher the placement of the antenna the better the communication link.

Antennas in close proximity are potential sources of mutual interference. Use the Radio Statistics to

help identify potential problems. It is possible that slight adjustments in antenna placement (as little as 1

meter) may solve interference problems.

The radio modem should be placed away from computers, telephones, answering machines and other

similar equipment. It is also advisable to keep units away from each other unless you synchronise their

transmissions (see (1) Special Controls Menu, page 20).

Long RS-232 cable runs should be avoided in areas with frequent lightning activity or static electricity

build-up. Nearby lightning strikes or elevated levels of static electricity may lead to voltage spikes on the

RS-232 circuits with potential failure of the interface. RF Innovations supplies a range of external data

interface converters for applications requiring long cable runs.

Using the External Antenna

The RFI-9256 has been designed to operate with the supplied antenna. The antenna should not be

located within 20cm of where people may come in contact.

WARNING:

Any antennas placed outdoors must be properly grounded. Use extreme caution when installing antennas

and follow all instructions included with the antennas. The use of external antennas subjects the

transceiver to greater exposure to direct lightning strikes.

The Hayes

commands will NOT work in Point-to-Point Mode by default.