Avaya DEFINITY Server CSI Maintenance Manual page 107

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Install DS1 CPE Loopback Jack (T1 Only)
Figure Notes:
1. Span Section 1
2. Span Section 2
3. 120A2 (or later) Integrated
Channel Service Unit
(ICSU)
4. RJ-48 to Network Interface
(Up to 1000 Feet) (305 m)
Figure 13. Network Interface at "Dumb" Block with Repeater Line to Fiber
Section 2 includes the short cable from the loopback jack to the "dumb" block
demarcation point (part of the loopback jack). This is the only portion o f section 2
that is part of customer premises wiring but is not covered in the loopback jack's
loopback path.
555-233-119
5. Loopback Jack
6. "Dumb" Block (Demarcation Point)
7. Repeater
8. Fiber MUX
9. Central Office
MUX
Issue 5 October 2002
107

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