PRELIMINARY
Customer Support (202) 333-7031
1-3
manager to not only obtain the latest information on link performance, but also allows link performance to
be observed over time. The
ioLink 4
management information base (MIB) enables the user to monitor
link performance through the network management system (NMS) as well as from the front panel.
Statistics for errored seconds, severely errored seconds, unavailable seconds, and degraded minutes are
automatically tracked. The modem keeps track of these statistics internally for 24 hours at 15 minute
intervals. This can help the system manager see if there is anything affecting the link as well as the ability
to detect times of day which have more errors in the communication link.
1.2.2
Forward Error Correction Alert
As various alarms alert the user of errors in communication or of link failure, the system also provides an
alert via forward error correction (FEC). The FEC corrects bit errors, which provides the user with error
free performance even when bit errors are occurring during transmission. The system monitors the
transmission errors and alerts the user when the rate reaches a preset limit. The user can set this alert to
be triggered at a desired level to provide advance warning of potential errors and interference in the link.
If the link transmission has a Bit Error Rate (BER) worse than the preset threshold, the system will give a
warning. This warning can alert the user to changes in the environment that may not have been present
during installation such as new interference, growth of trees, or obstructions that may impact the
transmission path so the user can take corrective action.
1.2.3
How to Contact Us
If a problem persists after troubleshooting, or the specific problem does not appear in any of our charts,
contact our technical support personnel at
ioWave
.
Any problems due to component failure are addressed in the warranty and service agreement. Any
product that must be returned to
ioWave
must have the proper authorization number obtained prior to
shipping. See warranty and service guidelines provided at the end of this guide and in the Installation and
User Guide Technical Reference which comes with the equipment for more information.
ioWave, Inc.
Tech Support:
1010 Wisconsin Avenue, NW
phone: (202) 333-7031
Suite 250
fax: (202) 333-0984
Washington, DC 20007
email: [email protected]
phone: (202) 333-9283
fax: (202) 333-0984
http://www.iowave.com
