Adjuncts and Peripherals
DS1/T1 CPE loopback jack
SI Installation and Upgrades
823
June 2004
Figure 316: 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