User's Manual
Table Of Contents
- Preface
- Contents
- 1 Introduction
- 2 Safety requirements
- 3 Installation prerequisites
- 4 iRU4438 iRRH installation overview
- 5 Installing the iRU4438 iRRH
- 5.1 Assembling cables
- 5.2 Routing pre-assembled power/fronthaul Ethernet/grounding cables
- 5.3 Installing RF antennas on upper/lower omni-antenna brackets
- 5.4 Installing RF antenna cables
- 5.5 Installing the iRU4438 iRRH mounting bracket
- 5.6 Hoisting the iRU4438 iRRH on elevated structures
- 5.7 Installing the iRU4438 iRRH on the mounting bracket
- 5.8 Connecting the grounding cable
- 5.9 Connecting the fronthaul Ethernet cables
- 5.10 Connecting the 110/220 V ac power cable
- 5.11 Checking power
- 5.12 Installing the solar shield
- 6.13 Terms, Acronyms and Abbreviations
Installing the iRU4438 iRRH
5-12 iRU4438 iRRH Product Descripton and Installation Guide
To install iRRH on the mounting bracket:
1. Hang the iRU4438 iRRH chassis on the mounting bracket by aligning the mounting
pl
ate tabs on the rear of the chassis to the mounting bracket slots (see Figure 5-
12).
Figure 5-12 Aligning mounting plate tabs to mounting bracket
2. Lower iRU4438 iRRH onto the mounting bracket and align the tapped screw hole
on top of the mounting plate with the tapped screw hole on the mounting bracket.
3. Insert two (2) M6 × 20 mm SEMS screws i
nto the screw hole on the top of the
mounting plate. See Figure 5-12.
4. Start threading the M6 screws into the mounti
ng bracket screws. Do NOT fully
tighten.
5. Insert two (2) M4 × 20 mm SEMS screws into the screw holes on ei
ther side of the
mounting plate.
6. Tighten the M4 screws on the side 13.3 in
-lb (1.5 Nm) using a torque wrench.
7. Tighten the M6 screws to 9 in-lb
(1 Nm) using a torque wrench.
5.8 Connecting the grounding cable
This section provides the procedure for properly grounding the iRU4438 iRRH to an
earth grounding point. Verify that grounding cable/lug assembly is terminated at the
other end to a tested earth grounding point according to Operator local practice.