Product Info
Table Of Contents
- Field Upgrade
- 1 Overview of field upgrade
- 2 Preparing for upgrade
- 3 Replacing the power supply unit
- 4 Replacing the cooling fan
- 5 Replacing or installing new TRX units
- 6 Chaining Nokia MetroSite EDGE BTSs
- 7 Commissioning for upgrade
- 8 Completing the upgrade
Replacing or installing new TRX units
DN00187365 © Nokia Corporation Draft 33 (50)
Issue 2-0 en Nokia Proprietary and Confidential
2. Block the TRX using Nokia BTS Manager (if the sector is not already
locked from the BSC). In the Supervision - Equipment View window, right
click on the TRX image and select the BLOCK button in the Object
Properties dialogue window (see Figure 10).
Figure 10. Example of blocking a TRX in Nokia BTS Manager
3. Make a note of the TRX cabling.
4. Disconnect the antenna and diversity cables from the TRX units to be
removed.
5. Loosen the units’ two retaining screws using a T10 Torx screwdriver.
6. Slide each TRX unit outwards to disengage it from the backplane
connector and then pull the unit upwards to remove it (see Figure 4). Use
the handle on the front of the TRX for pulling the unit.