Справочник Пользователя для AT&T System 85

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The following circuit packs can be used with all of the 8400-Series sets.

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TN2181 - 16-port

2-wire

G3V3, G3V2

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TN754b - 8-port

4-wire

All switches except System 85

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TN754 - 8-port

4-wire

All switches except System 85

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TN413 - 8-port

4-wire

International System 75

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SN 270 and

SN 270B - 4-port

4-wire

System 85 R2V2 - R2V4

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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.

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.