AT&T System 75, Схема подключения

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Associated Hardware
WP-90929, List 4, Cable Assembly (For 66-type Hardware Only)
The WP-90929, List 4, cable assembly (Figure 2-21 and Table 2-C)
provides a way to connect tie-trunk circuits to the switch. The 2-fingered
end of the cable assembly is equipped with male-type ribbon connectors.
The other end of the cable assembly is equipped with a female-type
ribbon connector. Each cable assembly can match eight 3-pair tie-trunk
circuits with two groups of four 3-pair tie-trunk circuits.
TRUNK CONCENTRATOR CABLE ORDERING INFORMATION
Description Comcode
WP-90929, List 1, Cable Assembly 405 064 999
WP-90929, List 2, Cable Assembly 405 065 012
WP-90929, List 3, Cable Assembly 405 075 482
WP-90929, List 4, Cable Assembly 405 075 540
16-Port Analog Line Circuit Pack Adapter Cable (For
110-Type Hardware Only)
The 16-port analog line circuit pack (TN746) contains sixteen 1-pair
circuits that appear on a 25-pair connector at the switch. The 16-port
analog line adapter cable (Figure 2-21) separates the 1-pair circuits
(from the switch) into 3-pair circuits that appear on two 25-pair
connectors at the other end of the cable.
2-45