User's Manual

INSTALLATION AND MAINTENANCE MANUAL
Tsunami FAMILY
SPREAD SPECTRUM RADIOS
SEPTEMBER 1999
SECTION 4: TROUBLESHOOTING PAGE 4-21
4.10 LINK Testing
Link testing is the preferred way to evaluate a radio link’s performance. It can be performed from
end-to-end or in link test mode (which tests both directions of the radio path). Figure 4-2 illustrates
a typical test configuration (which may include the radio’s path instead of in-line attenuators).
Figure 4-2 illustrates a typical test configuration for end-to-end testing.
When performing testing, make sure of the following:
- Disconnect all 10BaseT inputs and outputs to both radios.
- Verify all DIP switch settings.
Link testing may be performed on the bench, with two terminals back to back, or over the radio
path. Also, it may be performed from end-to-end (which requires two 10BaseT test sets over a
link, the far-end unit slaved to the near-end unit’s clock) or in loopback mode, as described in
Section 4.9.
If link testing indicates an unacceptable level of errors, follow the instructions in Section 4.6.1. or
perform a back-to-back test as described in Section 4.9.
Figure 4-2: End-to-End Test Configuration
Tsunami Tsunami
10baseT
Tester
10baseT
Tester