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8410 Voice Terminal
Distance Limitations
The following circuit packs can be used with all of the 8400-Series sets.
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
SN 270B - 4-port 4-wire System 85 R2V2 - R2V4
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 8410 voice terminal receives power from the system and does not require any external
power supply. Additional external power IS required when the 8410 voice terminal is equipped
with any adjuncts, such as an external speakerphone. In this instance, an MSP-1 Power Supply
is recommended. Refer to the Adjunct Power section of this manual for information on the
MSP-1 Power Supply.
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