User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 177
DIB-500 R4.1 Component replacement
Replacing the TIB
11.3.1 Removing the TIB
The procedure for removing the TIB is described below.
Proceed as follows to remove the TIB:
Preparation:
The preparatory measures must be completed, refer to Table 11.10 on page 175.
The tools and aids must be available, refer to section 11.2.1 on page 172.
Carry out the following steps:
Risk of damage
Installed components may be damaged. All the HF connections within the network ele-
ment may only be established/disconnected when the network element is disconnected
from the mains.
Ensure that the voltage supply of the component to be replaced is switched off
before you perform any work on the component.
Risk of injury
The equipment rack features sharp edges on the inside. Risk of injury if you do not wear
protective gloves.
Always wear protective gloves for the following process steps.
1. Disconnect all the cables connected to the component.
Proceed as follows:
| Remove the power supply cable, see (1) in Figure 11.1 on page 176.
| Remove all Ethernet cables, see (9) to (11) in Figure 11.1 on page 176.
| Remove all cables at the Rx receiver inputs and at the GPS antenna connection
using a wrench size 8, see (4) to (7) and (12) in Figure 11.1 on page 176.
| Remove all cables at the Tx transmitter outputs using a wrench size 19, see (3)
and (8) in Figure 11.1 on page 176.
| Remove the cable at the port for the "AUX" antenna connection using a flathead
screwdriver size 0.6 x 3.5, see (2) in Figure 11.1 on page 176.
2. Loosen the mounting screws of the component on the front of the equipment rack
using a Torx screwdriver size TX25.