Pedestal Installation - Motorola BLE Series Installation And Operation Manual

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P e d e s t a l I n s t a l l a t i o n
Mount the BLE*/* to the pre-drilled pedestal mounting plate. Use the 5/16-inch messenger
clamp bolts to mount the unit to the pedestal and torque to 10 to 12 in-lbs.
Pedestal installation is similar to the aerial installation with one exception—temperature. In an
aerial installation, the cable and amplifier are subject to the same temperature. In contrast,
pedestal installation provides a stable temperature environment for the buried cable while
subjecting the elevated amplifier to higher temperatures. The ADU, if installed, functions the
same as in an aerial installation, and does not require further attention.
Manual thermal compensation provided by the TDU can be inaccurate and result in signal level
changes with ambient temperature change. One approach to this problem is to select the least
amount of cable setting (low) on the TDU. This results in minimal gain change with
temperature. A preferred approach is to install a JXP-TH*T thermal attenuator while operating
the BLE*/* in the manual mode.
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