AT&T DEFINITY 7100 series Manual de usuario Pagina 78

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PORT CIRCUIT PACKS
Analog Line
Circuit Packs
Feature
TN746
TN746B
TN479
Number of Ports 16
16 16
Neon Message
Waiting Indicators
Yes
Yes Yes
LED Terminals Yes Yes
Yes
Feed Voltage -24 V
-48 V
-24V
Hard Bridging
No Yes
No
Station Adjunct
No Yes
No
Secondary Lightning
Protection
No
Yes
No
Same Premises—
Out-of-Building
No
Yes No
Terminals
500-Type
2500-Type
7102A*
500-Type
2500-Type
7100 Series
500-Type
2500-Type
7100 Series
Range With 500-Type/
2500-Type/7102A Ter-
minals† (24-Gauge Wire)
3,100
Feet
20,000
Feet
3,000
Feet
Range With 7101A/
7103A Terminals
(24-Gauge Wire)
Not
15,200
Supported Feet
Not
Supported
Ringer Loads
3
3 3
Simultaneous Ports
Ringing
4
8
4
The TN746 circuit pack supports the 7102A terminal, but does not support the 7101A
or 7103A terminals.
The TN746B circuit pack allows ringing on four ports of each half of the circuit pack
(for a maximum of eight simultaneous ports ringing). A user attempting to ring one half
of the circuit pack when all four ports are busy receives the busy tone.
73
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