Instruction manual

HARDWARE DESCRIPTION
Table 4-D.
Summary of Voice Terminals
TERMINAL
CIRCUIT PACK
TYPE *
MODEL
DESCRIPTION
INTERFACE
420
Memory Set with Built-in Speakerphone
500MM
Rotary Desk Set
ZTN78
Single-Line
500SM
Rotary Desk Set Compatible or
Tip Ring
with 4A Speakerphone
TN742
(Analog)
554BMPA
Rotary Wall Set
†
2500MMGB
Basic Touch-Tone Desk Set
2500MMGT Basic Desk Set with Recall Button
2500DMGC
Basic Desk Set with Message Waiting
2500SM
Basic Desk Set Compatible
with 4A Speakerphone
2514BMW
Basic Desk Set with Headset Jack
2526BMWG
Weatherproof Wall Set
2554BM
Basic Wall Set
7101A
Desk or Wall Set (MD)
7302H01D
5-Button
ZTN79
MERLIN Sys.
7303H01D
10-Button
Multiline
7305H01D
34-Button (MD)
7300H Series
7305H02D
34-Button Deluxe
(Hybrid)
7305H03B
BIS Set (Built-in Speakerphone)
7305H04C
BIS Set with Display
7309H01B
HFAI Set (Hands-Free-Answer
on Intercom)
7313H01A
BIS-10 (10-Button)
7314H01A
BIS-22 (22-Button)
7316H01A BIS-34 (34-Button)
7317H01A
BIS-34D (34-Button with Display)
MET ‡
2991C05
10-Button (Desk)
TN735
Multiline
2991D05
10-Button (Wall)
(Hybrid)
2993C04
10-Button with BIS
7302M
12-Button (Desk)
Multiline
ATL 5-Button Cordless Telephone
ZTN79
Cordless
Telephone
* System 25 supports several voice terminals that are no longer orderable.
These include MET sets and the 34-button (basic) MERLIN System set.
† The system supports equivalent industry standard touch-tone single-line
sets. Voice terminals connected via the ZTN78 Tip Ring Line CP must have
a REN less than or equal to 1.15 A/B.
‡ The 2991C04 set [with Busy Lamp Field (BLF)] will not operate with
System 25 unless specially modified. The BLF itself will always be inoperable.
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