ProSoft Technology ILX34-AENWG - Manual (Page 94)

Diagnostics and Troubleshooting ILX34-AENWG ♦ Point I/O Platform
User Manual Wireless POINT I/O Adapter
Page 94 of 177 ProSoft Technology, Inc.
August 16, 2013
There are many man-made and natural sources of electromagnetic interference
(lightning, power lines, switching power supplies, fluorescent lighting, microwave
ovens, cordless phones, and so on). To decrease the effects of interference on
network function:
 Use a directional (high gain) antenna at the Remote radio locations, if
possible
 Verify that each network operating in close proximity to each other has BEEN
ASSIGNED TO A DIFFERENT CHANNEL
 Install networks in rural areas (if at all possible) where they will likely
encounter less man-made noise than in urban or suburban areas
 Enable encryption
Improving Signal Quality
I f you need to improve a radio’s signal quality, try the following steps:
 Adjust the direction of the high-gain antennas.

Increase the height of the antenna’s placement.
 Use higher-gain antennas or external preamplifiers.
 Select a new location for the radio and/or its antenna.
 Decrease the length of the antenna cable.
 Determine and resolve sources of interfering electrical noise.
 Add a repeater between radios that are not communicating.
4.3 Establish I/O Connections
When you apply power to a POINT I/O system and establish I/O connections, the
outputs transition to the Idle state, applying Idle state data before going to RUN
mode. This occurs even when the controller making the connection is already in
RUN mode.
4.4 Recover From an Overloaded Adapter
Each POINT I/O connection established with the ILX34-AENWG adapter
consumes a portion of the microprocessor's bandwidth. The amount of bandwidth
used by a connection depends on a number of variables, including the requested
packet interval (RPI), the number of POINT I/O modules involved in the
connection, and the rate of change of the I/O.
The ILX34-AENWG adapter continuously monitors this bandwidth and rejects
requests for new connections when there is insufficient bandwidth available to
support the new connection.