DEFINITY Made Easy Tools
Issue 3, December 2001

Install and Wire Telephones

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Off-Premises Connections

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Connections for 1 to 8 Out-of-Building Analog Telephones shows the connections for 1 to 8 off-premises analog telephones.

Connections to 24 Out-of-Building Telephones shows the connections for up to 24 off-premises analog telephones. Concentrations of analog line pairs are used at both buildings to minimize the off-premises wiring required. At the MDF, jumpers must be connected between 1 row/connecting block in the white field and up to 3 rows/connecting blocks in the purple field. At the station location, a WP-90929, List 1 Concentrator Cable is used. There are 8 station appearances on each of the 3 fingers of the concentrator cable.

The maximum distance from the system cabinet to the out-of-building voice terminal is 6000 feet (1828.8 meters) using 24 AWG (#5) (0.5 mm 2) wire.

The maximum range of out-of-building analog telephones (500-, 2500-, or 7100-types) connected to an analog line circuit pack should be such that the maximum loop resistance does not exceed 1300 ohms.

Connections for 1 to 8 Out-of-Building Analog Telephones

Figure Notes:

1. Locally Engineered Cables and Equipment


2. Out-of-Building Wiring


3. 25-Pair Connector


4. Multi-Pair Protector Units (Primary Protectors with Heat Coils or Equivalent with Sneak Current Protection)


5. 356A Adapter


6. B25A Cable (Male to Female)


7. Out-Of-Building Analog Telephones


8. Part of Main Distribution Frame (MDF)


9. Station Side


10. System Side


11. White Field


12. Purple Field


13. Cross-Connect Jumpers


14. Tip and Ring Wires


15. To Analog Line Circuit Pack

Connections to 24 Out-of-Building Telephones

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. System Side


12. White Field


13. Purple Field


14. Cross-Connect Jumpers


15. Tip and Ring Wires

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Copyright� 2001 Avaya Inc.

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