Routine Maintenance Procedures
555-233-123
5-68
Issue 4 May 2002
Figure 5-15.
Network Interface at “Dumb” Block with Repeater Line to Fiber
MUX
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.
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)
5. Loopback Jack
6. “Dumb” Block (Demarcation Point)
7. Repeater
8. Fiber MUX
9. Central Office
Summary of Contents for Definity SI
Page 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Page 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...