User's Manual Part 2

Bay Level Offset Calibration – continued

6-84 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004

PRELIMINARY

Table 6-35: Procedure for All Cal/Audit and TX Calibration

Step Action

NOTE

If necessary, the correct channel number may be manually entered into the Carrier # Channels box.

7 If at least one MCC was selected in Step 3, select the appropriate transfer rate (1 = 9600, 3 = 9600 1X)

from the drop–down list in the Rate Set box.

NOTE

The rate selection of 3 is only available if 1X cards are selected for the test.

8 If Verify BLO is to be used during the calibration, leave the checkbox checked (default).

9 If Single–Sided BLO is to be used during the calibration, click on the checkbox.

10 In the Test Pattern box, select the test pattern to use for the calibration from the drop–down list (refer

to “Test Pattern Drop–down Pick List” under “TX Calibration and the LMF” in this section).

11 Click OK to display the status report window followed by a Directions pop-up window.

12 Follow cable connection directions as they are displayed.

– When the calibration process is completed, results will be displayed in the status report window.

13 Click OK to close the status report window.

Exception Handling

In the event of a failure, the calibration procedure displays a FAIL

message in the status report window and provides information in the

Description field.

Re–check the test setup and connection and re–run the calibration. If the

calibration fails again, note specifics about the failure.

Download BLO Procedure

After a successful TX path calibration, download the BLO calibration

file data to the BBXs. BLO data is extracted from the CAL file for the

BTS and downloaded to the selected BBX devices.

If a successful All Cal/Audit was completed, this

procedure does not need to be performed, as BLO is

downloaded as part of the All Cal/Audit.

NOTE

Prerequisites

Ensure the following prerequisites have been met before proceeding.

S BBXs to receive the download are OOS_RAM (yellow).

S TX calibration was successfully completed