User's Manual

Installation, Operation and Service Manual 90DIB500R41IM_FCC02 – 99.1 183
DIB-500 R4.1 Component replacement
Replacing the ACS
11.4.2 Installing the ACS
The procedure for installing the ACS is described below.
Proceed as follows to install the ACS:
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 11.2.2 on page 173.
✓ You need the terminating resistors and fastening screws removed with the compo-
nent.
Carry out the following steps:
Risk of damage
Risk of damage due to high weight (16 kg). The ACS may fall when pushing it in/pulling
it out and damage other components.
➔ When pulling the ACS out, additionally support it from below with your other hand.
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. Cautiously slide in the component along the slide rail holder from the front until the
connecting pins on the rear of the component slide into the openings provided.
2. If available, mount the terminating resistors (variant-dependent) properly on the
front cover of the ACS again applying a tightening torque of 0.6 Nm with a size 8
dynamometric key, refer to Figure 11.2 on page 180 and Figure 11.3 on page 182.
3. Retighten the attachment screws of the component on the front of the equipment
cabinet. Use a Torx screwdriver size TX 25 for this purpose.
4. Properly reconnect all the cables to the component.
Proceed as follows:
| Connect the corresponding cables at the antenna outputs "Rx" and "RxD" with a
dynamometric key size 8 using a torque of 0.6 Nm, see (1) and (3) to (5) in Figure
11.3 on page 182.
| Connect the corresponding cables at the ports "Antenna A" and "Antenna B" as
well as at the antenna inputs "Tx" with a dynamometric key size 19 using a torque
of 1 Nm, see (2), (7) and (8) in Figure 11.3 on page 182.
| Connect the corresponding cables at the "AUX" port using a flathead screwdriver
size 0.6 x 3.5, see (6) in Figure 11.3 on page 182.
5. Verify that all the connections made are properly connected.
6. Perform the concluding tasks, refer to Table 11.10 on page 175.
✓ The installation of the ACS has been completed.