12
ESS
Series Installation & Start-Up
MAN.ESS-INS, Rev. E
SIMREX CORPORATION
c.
When the network is operating properly based on observation
of the unit’s LEDs, connect a computer to the transceiver’s
data port that will be used by the local terminal equipment.
Send the
PING
command to verify the communications link
integrity with the Access Point.
d. After the
PING
command is successful, connect the terminal
equipment to the radio’s data port and verify normal opera-
tion.
If all checks are OK, you are finished with the installation at this site.
Resetting to Factory Defaults (Use with Care)
This procedure may be useful when several parameters have been
modified, and there is no track of changes. It causes the transceiver to
return to a known-operational state.
To reset all transceiver parameters back to the factory defaults,
including the password (default =
admin
), you must enter a special
code (authorization key) provided by the factory in place of the user
name at the time of login. Contact the factory for more information.
Performance Optimization
After the basic operation of the network has been verified, you may
wish to optimize its performance using the suggestions given below.
The effectiveness of these techniques will vary with the amount of data
being handled.
Optimize Received Signal Strength
Check the received signal strength indicator (RSSI) for an adequate
signal level from the radio network’s Access Point. (RSSI is available
through the
Menu System.) In the absence of interference, signal
levels that are sufficient to provide reliable operation (with a 15 dB
fade margin) are:
≥
–84 dBm @ 256 kbps,
≥
–75 dBm @ 512 kbps
≥
–65 dBm @ 1 Mbps.
If the signal levels are lower, it may be necessary to reposition the sta-
tion’s antenna for better reception/signal strength.
Minimize Packet Retries
If the Wireless Packet Statistics’ retry packet counter is unacceptably
high, several techniques can be used to improve it.
Summary of Contents for DataMover ESS Series
Page 24: ...Installation Guide...
