110-TYPE HARDWARE
The connecting blocks come in 3-, 4-, and 5-pair blocks. When 3- or 4-pair connecting blocks
are used, the last connecting block on each index strip must be one pair larger to complete
the 25-pairs. The ordering codes determine the type of connecting blocks received with a
terminal block. The 110-type terminal blocks allow for individual 3- and 4-pair circuits to be
disconnected for testing without disturbing adjacent circuits.
The 110-type hardware consists of 110A-type and 110P-type hardware. The 110P-type
hardware is designed to be used with patch cords. This allows for customer participation in
the cross-connect administration. The 110A-type hardware is designed to be used with
jumper wires. For this reason, the 110A-type hardware is not intended for customer
participation in the cross-connect administration because it requires technically skilled
personnel to do the cross-connection. The 110A- and 110P-type hardware should not be
mixed in the same room.
Figure 3-3. 110-Type Index Strip With Connecting Blocks
3-3
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