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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
The 8100 Series Telephones
16-22The 8110 and 8110M Telephones
16
Power Requirements
It is recommended that the 8110 and 8110M telephones have auxiliary power
(9V DC, 100 mA) to improve the performance of the speakerphone under the
following conditions: (See the table below.)
NOTE:
Use with the TN746 circuit pack requires auxiliary power (in the form of a
power adapter) at all loop lengths. On System 85 and DEFINITY G2, the line
must be administered as Data Restricted to allow for the automatic
disconnect feature.
Table 16-4. Power Requirements for the 8110 and 8110M Telephones
Circuit Pack Loop Information
If you are using:
Circuit Pack TN742
Circuit Pack TN769
■ When loop length exceeds:
— 16,000 feet (22 gauge)
— 10,000 feet (24 gauge)
— 6,300 feet (26 gauge)
or
■ When loop resistance exceeds 256 ohms
or
■ When loop current is less than 26 mA
If you are using:
Circuit Pack SN229
■ When loop length exceeds:
— 11,000 feet (22 gauge)
— 7,000 feet (24 gauge)
— 4,400 feet (26 gauge)
or
■ When loop resistance exceeds 180 ohms
or
When loop current is less than 26 mA
Any installation When loop current is less than 26 mA
Any installation When another analog telephone is bridged with
the 8110 or 8110M telephone