Toshiba Strata AirLink, Installation Manual

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Maintenance and Troubleshooting
Troubleshooting
Strata AirLink Installation Guide 5/00
81
Troubleshooting
System Power, Polarity, and Continuity
It is important to check all power sources, polarity, and continuity before any other troubleshooting
begins. Quickly check the LEDs. Check the polarity of the system by ensuring that all transmit and
receive pairs are consistently wired throughout the system. Sometimes switching pairs at the Base
Station solves a problem quickly.
Components
If only one system component has a problem, try replacing it with a known good one. For
example, switch Base Stations, RWIUs, BSIAs, ALMs, or handsets to see if problems persist.
Communications
To check for communication errors (for example, serial port failure), perform a software version
query of the Base Station from the software. If the system does not respond to the query, check the
cables.
RF Link Termination
The handset can lose its signal from the Base Station because of reduced power, interference, or
stepping out of range. Verify that the battery is fully charged and the handset is in range of a Base
Station.
Noisy Circuits
If users complain about noisy circuits or problems with dial tone, try switching the user to another
circuit on the office telephone system. If a circuit is not operating at all, use a installer test set to
check continuity throughout a system.
DC Resistance
The distances between the system and its Base Stations (see Table 28 ), whether using line power or
a local power supply, can be exceeded during an installation. The distances are reflected in the
resistance of the line. For specific BSIA information, see
“To measure the DC resistance” on Page
86 , and for the RWIU, see “” on Page 95 .
System Reset
As a last resort, sometimes resetting the system clears up system problems. Before resetting the
system, collect as much information as possible in the current log file. Get traffic statistics reports,
call status reports, line and Base Station status reports, and alarm reports, if available. Use the Save
As command to save the log file.
Activation Code
If the UTAM activation code has not been uploaded, the Base Stations will not operate (refer to
“Set Up Temporary Installation” on Page 13 for more information). Contact Strata AirLink
Activation Desk at (949) 598-4980 for the code between the hours of 8:00 a.m. and 5:00 p.m.
(Pacific Standard Time), Monday through Friday. Voice mail is available for messages after hours.