Avaya MCC1 Installation And Upgrades page 825

Figure 318: Network interface at "dumb" block for a 120A2 (or later) ICSU
Figure notes
1 Span section 1
2 Span section 2
3 120A2 (or later) ICSU
4 RJ-48 to network interface (up
to 1000 ft. [305 m])
SI Installation and Upgrades
June 2004
5 Loopback jack
6 Dumb block (demarcation point)
7 Interface termination or fiber multiplexer (MUX)
8 Central office
Adjuncts and Peripherals
DS1/T1 CPE loopback jack
825