Instruction manual

UPGRADES AND ADDITIONS
Circuit Pack Additions and Replacements
The following circuit packs, although not required for the basic upgrade, may need to be added or
replaced for additional features:
TN722—Provides connection capability to DS1, alternate/voice data (AVD), and Digital
Multiplexed Interface (DMI) facilities.
TN767 DS1 Interface—Provides connection capability to ISDN feature in addition to the
features supported by the TN722.
TN725 Speech Synthesizer—Provides speech synthesis application for Leave Word Cal-
ling feature and supports the Automatic Wakeup feature.
TN726 Data Line—Provides direct connection capability to asynchronous equipment with
EIA-232C interfaces.
TN760 Tie Trunk—Provides the release-link trunks required for Centralized Attendant
Service (CAS). The release-link trunks can also be provided by the DS1 Tie Trunk circuit
pack.
TN746 Analog Line (16 ports)—Used to provide a 16 ports per circuit pack for on-
premises (in building) analog terminals.
TN750 Announcement—Provides an integrated means for recording announcements that
can then be played back on demand from call processing as part of a calling feature.
Messages can be recorded by customers from their voice terminals, on- or off-premises,
and have flexible message lengths. Up to 16 different messages can be played back
simultaneously. The TN750 cannot be used for the Automatic Wakeup feature.
TN755 Power Unit—Converts -48 volt DC to neon lamp voltage required by the circuit
packs.
TN747 CO Trunk—Supports the Abandoned Call Search feature for ACD applications.
TN763 Auxiliary Trunk—Supports Audichron announcement equipment.
Attendant Console Replacement
To support the Emergency Access to the Attendant feature, the attendant console must be a
301A1-A, 302A1-A, or 301B1-A.
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