Off-premises protection requirements – Avaya 03-300686 User Manual

Page 93

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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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