Cross-Connect Hardware Selection - AT&T System 75 Wiring Diagram

Cross-Connect Hardware Selection

For new wiring installations, the following cross-connect hardware is
available for use in the system. Each item lists certain considerations
that should help to select the appropriate hardware.
1. 110P Hardware
Patch cord design allows customer to administer
cross-connections
Requires some technical skill to administer cross-connections
2. 110A Hardware
Design does not permit customer participation in
cross-connect administration—requires technically skilled
personnel to administer cross-connections
Hardware is less expensive than the patch cord systems, but
installation and administrative costs are greater
3. 66-type Hardware
Design does not permit customer participation in
cross-connect administration—requires technically skilled
personnel to administer cross-connections
Hardware is less expensive than the patch cord systems, but
installation and administrative costs are greater
Obviously, the customer's interest and preference for administering
cross-connections (because of likely lower total annual costs, as well as
the capability to administer the cross-connections at the most convenient
time) should be given primary consideration in recommending
cross-connect hardware.
Figure 1-4 shows a block diagram of the equipment required to install a
System 75 or 75 XE switch. The sites shown in Figure 1-4 are physical
locations (closets) for pass-through connections where adjunct power
may be applied. The satellite is a physical location (closet) where
cross-connect administration can take place and adjunct power may be
applied.
Cross-Connect Hardware Selection
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