ADTRAN Total Access 3000 System Manual page 121

1.1 QFO-Only System Application
References to common, but differing, parameters between the Total Access
3000 and the Total Access 3010, such as number of slots, will be conveyed
by the convention a/b. The "a" represents the Total Access 3000 parameter
and the "b" represents the Total Access 3010 parameter. For example, the
differing number of access slots in the two platforms, 28 for the Total Access
3000 and 22 for the Total Access 3010, would be displayed "28/22."
1.1.1 Usage
The QFO-only configuration will be used when the QFO-C is the only card in the shelf
and the shelf is to be DSX-1-Fed.
For QFO-only applications, all four DSX-1 connections are used. The connections are
pairs 5 through 8 and are connected via four 64-pin/50-pin Amphenol connectors.
Table 1 is the pinout for pairs 5 and 7, and Table 2 is the pinout for pairs 6 and 8.
If 1:1 protection is desired, 2 QFO-C modules are required for each protected circuit,
with the odd-numbered slot serving as the working and the adjacent, even-numbered
slot (to the immediate right) serving as auxiliary. If 1:1 protection is not desired, then
only 1 QFO-C is required with the even-numbered slot vacant to the right. A Total
Access 3000/3010 access module blank (P/N 1181953L1) can be used for the vacant
slot.
For each QFO-C, there will be two fibers going to the FDF (see Table 3 for shelf
wiring). Each fiber is unidirectional. Therefore, the non-protected mode will have 28/
22 fiber optic cables going to the FDF and the protected mode will have 56/44 fiber
optic cables.
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Total Access 3000/3010 System Manual
TOTAL ACCESS 3000/3010
NOTE
6TAAPP306-1E
APP-306
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© 2002, ADTRAN, Inc.