ADCP-80-325 • Issue 4 • January 2001
Page 7
© 2001, ADC Telecommunications, Inc.
If assignments are made completely at random in a three-lineup system, it is possible that
about two-thirds of the cross-connect wires will leave a lineup. If assignments are completely
contained in a lineup, no cross-connect wires will leave that lineup. Most offices will be
somewhere between these two extremes. It is recommended that a minimum ratio of 25%
cross-aisle tie circuits to DSX termination be provided. It may be prudent to leave room for
another cross-aisle panel to be installed at a later date as the lineups mature.
4 INSTALLATION
Installation of Cross-Aisle Panels involves mounting of the panels on the various bays and
interconnecting them between the lineups.
Warning: To prevent electrical shock, never install Cross-Aisle Panels in a wet location or
during a lightning storm. When installing or modifying telephone lines, disconnect lines at the
network interface before working with uninsulated lines or terminals.
4.1 Panel Mounting
Install all Cross-Aisle Panels in the assigned bay locations using 12 – 24 × 1/2 inch mounting
screws.
Note: The 12 – 24 × 1/2 inch mounting screws must be ordered separately.
4.2 Installation Drawing
Each panel is shipped with an installation drawing. This drawing defines the specific input and
output terminations on the Cross-Aisle Panel.
Figure 4 shows a typical installation drawing. The Cross-Aisle Panel shown in Figure 4 has
100 DSX circuits.
In a front cross-connect DSX system the front of the Cross-Aisle Panel is used to connect
cross-connect jumpers. The back is used to connect tie cables from a Cross-Aisle Panel in one
lineup to a Cross-Aisle Panel in another lineup.
In a rear cross-connect system, the back of the Cross-Aisle Panel is used to connect cross-
connect jumpers. The front is used to connect tie cables from a Cross-Aisle Panel in one
lineup to a Cross-Aisle Panel in another lineup.
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