Install DS1/T1 CPE loopback jack
Issue 10 June 2005 333
Figure 103: Network interface at extended demarcation point (smart jack inaccessible) for
a 120A2 (or later) ICSU
Figure notes:
1. Span section 1
2. Span section 2
3. Span section 3
4. 120A2 (or later) ICSU
5. RJ-48 to network interface
(up to 1000 ft. [305 m])
6. Loopback jack
7. Dumb block (extended demarcation)
8. Network interface smart jack
9. Interface termination or fiber multiplexer (MUX)
10. Central office