User's Manual

MC-Series ©2008 RadioFrame Networks, Inc. E-7
Proprietary and Confidential Information
MC-Series Standard Capacity system
998-1019-01 Rev X1
4. To lock a RadioBlade transceiver, select its open lock icon, and, when
prompted, select
Accept. Or you can use the lock all hot link to
administratively lock all blades with one command.
E.7.1 RadioBlade Transceiver BER Test
This section covers the method to use to measure receiver BER and determine
whether each RadioBlade transceiver passes. Testing is organized by sector to
minimize the need to move the Sig Gen leads. Because you are testing an MCSC
system that is not in service, you can simply leave the leads connected to the
sector Rx port at TOR for the duration of the tests on that sector. The testing
method follows a nested loop (summarized in E.4 (Testing Strategy) ) until all
blades either pass or fail. Once testing on a given RadioBlade transceiver has
been completed (step 7 ) you repeat the test steps for the next transceiver. Once
a given sector is completely tested, you move the leads to the next sector input
port and repeat the test for each blade in the next sector.
1. Set the Motorola R2660 to generate an in-bound 1 x 6 test signal at the
desired frequency and signal level into the Rx port that corresponds to the
RadioBlade transceiver to be tested.
2. Determine the receive sensitivity threshold. Start at –120 dBm, and then
increase in 2 dB increments until the BER drops below 2%. The receive
sensitivity value should be less than –106 dBm at 2% BER.
3. Determine the max. level threshold. Start at –48 dBm and increase in 2 dB
increments until the BER goes above 2%. The maximum input power should
be greater than –40 dBm at 2% BER.
4. If either of the values called for in steps 2 and 3 is not attained, the
RadioBlade transceiver has failed specifications and should be replaced.
5. Display the RadioBlade Control page ((Figure E-3)), and make sure the
RadioBlade transceiver that is to be tested is not locked. If it is locked, unlock
it.
6. If you are unlocking the blade, refresh the page every 30 seconds until the
State of the RadioBlade transceiver has changed to ‘UEA’, approximately 3
minutes.
7. Select the Diagnostics tab ((Figure E-4)), and then select
Bit Error Rate
Test
.