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 the power supply unit
DN00187365 © Nokia Corporation Draft 23 (50)
Issue 2-0 en Nokia Proprietary and Confidential
Figure 4. Removing the units
3.2 PSU installation
Installing the new PSU
1. Slide the PSU into the appropriate slot. See Figure 4.
2. Place the PSU into the bottom runner then push the top of the unit forward
into the clearance slots provided in the top runners.
3. Press the unit carefully into the connector on the backplane. Do not use
excessive force!
4. Tighten the two PSU mounting screws on the upper and lower mounting
brackets using a T10 Torx torque driver. Tighten to 1.5 Nm (1.1 lb ft).
5. Loosen the two T10 Torx retaining screws on the connector cover and open
the cover. See Figure 3.
Power supply unit
Interface unit
Transmission unit
Transceiver units