AT&T DEFINITY 7100 series Bedienungsanleitung PDF herunterladen (Seite 86)

PORT CIRCUIT PACKS

DS1 Interface Universal TN464

The TN464 acts as a DS1 interface and an ISDN-PRI interface. It

can be installed in any port slot in the system.

Hybrid Line TN762 or TN762B

Has eight ports that can be connected only to AT&T 7300 series,

multiappearance hybrid analog and digital voice terminals. A

TN762B has the following leads:

●

VT and VR, which are used for analog voice

CT, CR, P-, and P+, which are used for digital signals

that control terminals

ISDN Line TN556

Has 12 ports that can be connected to ISDN-BRI terminals. Each

port operates at 192 kbps and has two B-channels and one

D-channel. It allows eight ports to provide interface links for

ASAI/CVS applications with the Incoming Call Management feature

and requires a Packet Control circuit pack (TN778).

Multi-button Electronic Telephone (MET)

Line TN735

The TN735 has four ports that connect to MET sets. Each port has

the following signal leads:

●

T and R, which handle analog voice

BT, BR, LT and LR, which handle digital signals that

control terminals

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AT&T DEFINITY 7100 series Bedienungsanleitung Seite 86