Specifications

Elastic Networks 1 BitStorm 1900 Access Multiplexer
08-01101-01, Rev. 1.50 BitStorm 1900™ Installation and Maintenance Guide 1-45
Low-Pass Filter Specifications
Filter Shelf
Low-Pass filters are used with the BitStorm 1900 in EtherLoop applica-
tions where voice service is required. The low-pass filter cards separate
out-of-voiceband signals from the voiceband traffic between the Bit-
Storm modems and the external voice facility equipment. The Low-
Pass Filter Shelf contains one filter card for each modem card.
The filter shelf connects to the distribution frame, designed to minimize
signal interference and facilitate broadband connectivity by isolating
Digital Service Units (DSUs) from the Private Branch Exchange
(PBX). Refer to Figure 1-19 on page 46 for Filter Shelf Specifications.
Filter 66-Block
The Filter 66-Block provides the same function as the filter shelf, how-
ever, it is a space saving and economical alternative to the filter shelf
for large enterprise installations. Refer to Figure 1-19 on page 46 for
Filter 66-Block Specifications.