Installation; Aerial Installation; Figure 5-1 Center-Conductor Pin Length - Motorola BLE100 Installation And Operation Manual

Section 5

Installation

The field installation procedures presented in the following subsections assume that the
amplifier was previously tested and bench aligned. Cable power and RF signal must be
available on the system. Although it is desirable to have a full complement of channels available
for balancing, you can adjust the BLE100 adequately with a limited number of channels.
You can install the BLE-HSG/15 on a messenger strand (aerial) or in a pedestal. The following
subsections provide details on each application.

Aerial Installation

The housing is normally mounted horizontally below the strand without the electronics chassis
to avoid possible damage during installation. Connections are made using standard pin-type
connectors with a nominal center-conductor diameter of 0.067 inches. The minimum length of
the center-conductor pin is 1.35 inches and the maximum length is 1.5 inches. Longer pins can
extend past the center-conductor seizure mechanism and degrade the match. Extremely long
pins can result in a short circuit.
Figure 5-1
Center-conductor pin length
To install the unit:
Power-down the cable before you install the housing. This avoids blown fuses, tripped circuit
1
breakers, and possible personal injury.
Mount the housing, and torque the two 5/16-inch messenger clamp bolts (illustrated in
2
Figure 2-5) to 10 to 12 ft-lbs.
Form the customary expansion loops and make all cable connections according to system
3
design.
Tighten the center-conductor seizure screw using a Phillips-head screwdriver. An alternate
4
method is to use a 3/16-inch socket and a torque wrench. The recommended torque is
12 in-lbs. maximum.
To avoid water ingress, ensure that aluminum connectors are torqued to the specifications
5
recommended by the connector manufacturer.
If previously removed, re-install the electronics chassis and fasten it to the housing with the
6
four captive bolts. Torque to 18 to 22 in-lbs.
Remove the input pad (
7
Apply power to the unit and allocate a few minutes for warm up.
8
1.50" Max.
1.35" Min.
- ) to avoid damage to the hybrids.
JXP IN
BLE100 Installation and Operation Manual