ATT System 25 Reference Manual

HARDWARE DESCRIPTION
420 Speakerphone Voice Terminal (Not Orderable)
The 420 Speakerphone voice terminal (Figure 4-7) is a single-line analog set that can be desk
or wall mounted. The 420 Speakerphone set can no longer be ordered. It has the following
components and features:
l
l
l
l
l
l
lHandset
Touch-Tone Dial
Built-In Speakerphone
Twelve Memory Buttons (where emergency numbers and frequently called numbers
can be stored for quick calling)
Six Fixed Feature Buttons
— Program - For entering the memory...

HARDWARE DESCRIPTION
MEMORY
BUTTONS
PROGRAM BUTTON
FLASH BUTTON
HOLD BUTTON AND LAMP
SPEAKERPHONE BUTTONAND LAMP
MUTE BUTTON
RINGER
VOLUMESPEAKER
CONTROLVOLUME
CONTROLRECEIVER
VOLUME
CONTROL
Figure 4-7.420 Speakerphone Voice Terminal
Single-Line Voice Terminal Connection Information
Single-line voice terminal connection information is provided under the “Connectivity”
heading later in this Section. Maximum cabling distances from the system cabinets to
single-line voice terminals is provided in Section 5,...

HARDWARE DESCRIPTION
Multiline Voice Terminals
The recommended multiline terminals for System 25 is the ATL cordless telephone and the
7300H Series hybrid sets that are also used with the MERLIN Communications System.
Multibutton Electronic Telephone (MET) sets already available to the customer can be reused
in a System 25 installation but are not orderable.
Multiline voice terminals have programmable buttons that can be assigned for handling calls
and for controlling features.Many of these buttons are...

HARDWARE DESCRIPTION
7302H01D Voice Terminal (5-Button) (PEC 3160-111)
The 7302H01D voice terminal (Figure 4-8) can be desk or wall mounted and is about 5-3/4
inches wide, 5-1/4 inches high, and 8-1/2 inches deep.The set comes equipped with the
following:
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l
l
l
l
lHandset
Touch Dial Pad (not DTMF)
I-Use and Status LEDs
Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for
programming feature buttons)
Built-in Speaker
Speaker/Ringer Volume Control
Six Fixed Feature...

HARDWARE DESCRIPTION
HANDSET
PROGRAMMABLE
TEST/PROGRAMBUTTONS (5)
SWITCHWITH I-USE AND
(ON SIDE)STATUS LEDs
SPEAKER/RING
VOLUME CONTROL
(ON SIDE)
Figure 4-8.
7302H01D Voice Terminal (5-Button)
4-25 

HARDWARE DESCRIPTION
7303H01D Voice Terminal (10-Button) PEC 3161-172
The 7303H01D voice terminal (Figure 4-9) can be desk or wall mounted and is about 7 inches
wide, 5-1/4 inches high, and 8-1/2 inches deep. The set comes equipped with the following:
l
l
l
l
l
l
l
lHandset
Touch Dial Pad (not DTMF)
I-Use and Status LEDs
Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for
programming feature buttons)
Built-in Speaker
Speaker/Ringer Volume Control
Seven Fixed Feature...

HARDWARE DESCRIPTION
PROGRAMMABLE
BUTTONS (10)
TEST/PROGRAM
SWITCHWITH I-USE
STATUS LEDs
(ON SIDE)
HANDSET
TOUCH DIAL PAD
SPEAKER/RING
VOLUME CONTROL
(ON SIDE)
MESSAGE
AND
Figure 4-9.
7303H01D Voice Terminal (10-Button)
4-27 

HARDWARE DESCRIPTION
7305H01D Voice Terminal (34-Button) (MD) (PEC 3162-412)
The 7305H01D voice terminal (Figure 4-10) can be desk or wall mounted and is about 10-1/4
inches wide, 5-1/2 inches high, and 8-1/2 inches deep. This set is available only on a reuse
basis and is not orderable via the Delivery Operation Support System (DOSS) Configurator.
The set comes equipped with the following:
l Handset
l Touch Dial Pad (not DTMF)
l I-Use and Status LEDs
l Test/Program Switch (two positions: T for testing...

HARDWARE DESCRIPTION
I-USE/STATUS LEDs
PROGRAMMABLE
HANDSET
BUTTONS (34)
Figure 4-10.
7305H01D Voice Terminal (34-Button) (MD)
4-29 

HARDWARE DESCRIPTION
7305H02D Voice Terminal (34-Button Deluxe) (PEC 3162-417)
The 7305H02D voice terminal (Figure 4-11) is available for general use and as a Direct Trunk
Attendant Console. The voice terminal is about 10-1/4 inches wide, 5-1/2 inches high, and
8-1/2 inches deep. It comes equipped with the following:
l Handset
l Touch Dial Pad (not DTMF)
l I-Use and Status LEDs
l Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for
programming feature buttons)
l Built-in...