AT&T 75 Wiring Manual page 230

110-TYPE HARDWARE
The 110PC1-900CT Terminal Block—a factory-assembled 900-pair connectorized
terminal block that provides termination for 288 three-pair circuits. Thirty-six 25-
pair female miniature ribbon connectors are located at the top of the terminal block.
The connectors are factory-terminated on the wiring blocks in continuous numerical
order.
110PB1-900FT Terminal Block—A set of parts to permit field termination of cables
on a 900-pair terminal block that provides termination for 216 four-pair circuits.
110PC1-900FT Terminal Block—A set of parts to permit field termination of cables
on a 900-pair terminal block that provides termination for 288 three-pair circuits.
110PE1-900CT/FT Terminal Block—A partially factory-assembled 900-pair terminal
block that provides termination for 96 three-pair and 144 four-pair circuits. Twelve
25-pair female miniature ribbon connectors are located at the top of the terminal
block to provide connectorized termination to the 3-pair circuits. The connectors are
terminated on the 3-pair wiring blocks in a continuous numerical order. The 4-pair
wiring blocks are provided as a set of parts to permit field termination of the 4-pair
circuits.
110PE1-900FT Terminal Block—A set of parts to permit field termination of cables
on a 900-pair terminal block that provides termination for 96 three-pair and 144
four-pair circuits.
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