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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
The 8400 Series Voice Terminals
12-8The 8403 Voice Terminal
12
Distance Limitations
The following circuit packs can be used with all of the 8400-Series sets.
In 4-wire operation, the voice terminal must be within 5,000 feet of the PBX using
22-gauge or 24-gauge wire, and within 4,000 feet of the PBX using 26-gauge wire.
In 2-wire operation, the voice terminal must be within 5,500 feet of the PBX using
22-gauge wire, within 3,500 feet of the PBX using 24-gauge wire, and within 2,200
feet of the PBX using 26-gauge wire.
Power Requirements
The 8403 voice terminal receives power from the system and does not require any
external power supply. Additional external power IS required when the 8403 voice
terminal is equipped with any adjuncts, such as an external speakerphone. In this
instance, an 1151A1 local power supply or an 1151A2 power supply with Battery
Holdover is recommended. Refer to the Adjunct Power section earlier in this
manual for more information about these power supplies.
Table 12-2. Distance Limitations for the 8403 Voice Terminal
Circuit Pack 2/4-Wire Will support these switches
TN2181 - 16-port 2-wire G3V3, G3V2
TN754b - 8-port 4-wire All switches except System 85
TN754 - 8-port 4-wire All switches except System 85
TN413 - 8-port 4-wire International System 75
SN 270 and
SN270B - 4-port
4-wire System 85 R2V2 - R2V4