Instruction manual

HARDWARE DESCRIPTION
Voice Terminal Adjuncts
The following adjuncts and associated power supplies are supported on corded multiline sets
only:
● MET Headset Adapter (for 10-Button MET sets); refer to “Headset Adapter Adjunct”
in Section 2.
● 500A/502B Headset Adapter (for 12-Button MET sets and MERLIN System voice
terminals): refer to
“Headset Adapter Adjunct” in section 2. The 502B must be used
if Hands-Free Answer on Intercom (HFAI) operation on the headset is desired (for
example, typical Call Management System application).
● 4A Speakerphone System (for 2500SM single-line sets and 10-Button MET sets);
refer to “Speakerphone Adjunct” in Section 2.
● S101A/S102A Speakerphone (for 12-Button MET sets and MERLIN System voice
terminals, respectively); refer to “Speakerphone Adjunct” in Section 2.
● KS 23566,L1 Ke (Ground Start Button)
A KS 23566,L1 Ground Start Button is required for each Power Failure Transfer
(PFT) station that is connected to a ground start trunk during power failures.
● Acoustic Coupler
An Acoustic Coupler (349A Adapter) can be used with the 7300H series voice
terminals and MET sets.
The coupler provides acoustic coupling between the
handset and acoustic modems.
● Answering/Announcement Machine
A suitable answering/announcement machine can be used as an adjunct to single-
line voice terminals. Note that when such a machine is bridged on to a ZTN78 Tip
Ring Line CP port, the combined adjunct/terminal REN must not exceed 1.15 A/B.
● Z3A Message Waiting Indicator (MD)
The Z3A Message Waiting Indicator provides a message waiting light at 2500 Series
single-line voice terminals that do not have a built-in lamp. Existing sets with this
adjunct can be reused.
Voice Terminal Adjunct Connection Information
Detailed adjunct connection information is provided in Section 2 with the detailed feature
descriptions of the headset adapter and speakerphone adjuncts.
Descriptions of the Station Interconnect Panel (SIP), Trunk Access Equipment (TAE), and
associated cables and adapters,
as shown on the figures, are provided under the
“Connectivity” heading later in this Section.
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