Avaya MCC1 Maintenance Procedures page 363

Figure 109: Network Interface at Extended Demarcation Point (Smart Jack accessible)
Figure notes
1 Span Section 1
2 Span Section 2
3 Span Section 3
4 120A2 (or later) Integrated
Channel Service Unit (ICSU)
5 RJ-48 to Network Interface (up
to 1000 Feet) (305 m)
Configurations without a Smart Jack
When the loopback jack is added to a span that does not contain a smart jack, the span is divided into two
sections. See Figure 110, Network Interface at "Dumb" Block, on page 364
Interface at "Dumb" Block with repeater line to Fiber MUX, on page
Table 86, DS1 span section descriptions (without a Smart Jack),
Table 86: DS1 span section descriptions (without a Smart Jack)
Span section
Span Section
1:
Span Section
2:
Maintenance Procedures
December 2003
6 "Dumb" Block (Extended Demarcation)
7 Loopback Jack
8 Network Interface Smart Jack
9 Interface Termination or Fiber MUX
10 Central Office
11 "Dumb" Block to Smart Jack RJ-48
Smart Jack location
ICSU to the loopback jack
Loopback jack to the CO)
Additional maintenance procedures
DS1 CPE loopback jack (T1 only)
and Figure 111, Network
365. These sections are described in
on page 363.
363