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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Routine Maintenance Procedures
Page 5-76Install DS1 CPE Loopback Jack (T1 Only)
5
Figure 5-11. Network Interface at Smart Jack
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)
6. Loopback Jack
7. Network Interface Smart Jack
8. Interface Termination or Fiber MUX
9. Central Office