Installation Guide

Installing the iRM4451
iRM4451 RRH Product Description and Installation Guide 6-11
NOTE
It is recommended that the –48 V dc power connection be waterproofed
using a self-fusing tape made for that purpose. The application of the
tape will vary by Operator, so local practice will determine how the tape
is applied.
3. Waterproof the connection by wrapping the connector with self-fusing tape (refer
to
Required tools on page 4-1) according to Operator local practice.
6.2 Checking power
This section provides the procedure for verifying power to the iRM4451 is connected
correctly and operating normally.
NOTE
After applying –48 V dc power and verifying that the iRM4451 is
functioning properly, leave power to the unit ON.
To check power to the iRRU:
1. Switch ON the breaker (or insert the appropriate size and type of fuse) to provide
power to the iRM4451 .
2. Verify that the iRM4451 powers up as indicated by the LEDs on the side of the
iRM4451 lighting in the boot sequence provided in
Table 3-5.
3. Leave power to the iRM4451 ON.
6.3 Installing the solar shield
This section provides the procedure for installing the solar shield on the iRM4451 .
DANGER
When installing the solar shield on the iRM4451 , be sure that you do
not crimp or crush the RF coaxial cables.
To install the solar shield:
1. Place the solar shield over the iRM4451 .
2. Align the solar shield over the four (4) screw holes in the iRM4451 .
3. Secure the solar shield with four (4) M5-8 x 10 mm screws.
4. Tighten the screws 62 in-lb (7 Nm) using a torque screwdriver.