AT&T 75 Wiring Manual page 499

66-TYPE HARDWARE
If cables are to be connected to site locations or adapters, A25B cables (double-ended or
single-ended) connect to the connecting blocks at the equipment room. The A25B cables are
run to the site locations or adapters. If multiple 25-pair staggered fingered station cables
(double-ended or single-ended) are run to the site locations or adapters, B25A cables connect
to the multiple staggered-finger station cables (see Figure 4-45). The staggered-finger
station cables are run to the site locations or adapters.
Figure 4-45. Multiple 25-Pair Station Cable With Factory-Installed Staggered
Fingers Connected to a 66-Type Connecting Block
4-73