Avaya 03-300686 User Manual

Page of 156
Off-premises connections
Issue 3 January 2008
93
 
Figure 45: Connections to 24 out-of-building telephones
Off-premises protection requirements 
Both building entrances require carbon block or equivalent protection and sneak current 
protection. Protection can be provided by:
a 4-type protector, which is equipped with a heat coil
a 3-type protector plus a separate sneak current protector
Figure notes:
1. Locally Engineered Cables and 
Equipment
2. 25-Pair Connector
3. Multi-Pair Protector Units (Primary 
Protectors with Heat Coils or 
Equivalent with Sneak Current 
Protection)
4. B25A Cable (Male to Female)
5. Concentrator Cable (WP90929 List 1)
6. 356A Adapter
7. Out-of-Building Wiring
8. Out-Of-Building Analog 
Telephones
9. Part of Main Distribution Frame
(MDF)
10. Station Side
11. Media Gateway Side
12. White Field
13. Purple Field
14. Cross-Connect Jumpers
15. Tip and Ring Wires
crdf24o CJL 101396
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