ATT System 25 Reference Manual

HARDWARE DESCRIPTION
Figure 4-21. 12-Button
MET Set (7203M)
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HARDWARE DESCRIPTION
ATL Cordless Telephone (5-Button) (PEC 3168MLC)
The ATL Cordless Telephone (Figure 4-22) consists of a handset plus a base. The telephone
with the handset placed in the cradle measures 5 inches wide, 2 1/2 inches high, and 8 1/4
inches deep, and weighs about 2 pounds and 9 ounces. The antenna on the base extends
about 2 feet. The base has the option to accept a 7-inch flexible antenna or a 9-inch rigid
antenna.The base can be desk or wall mounted and requires access to standard...

HARDWARE DESCRIPTION
l Tone ringer and volume control
l Security controls, antenna, handset battery charger.
Adjuncts: None
LINEAPPEARANCE
WITH I-USE
AND STATUS
LEDs
TOUCHDIALPAD
HANDSET
TELEPHONEMODE
SWITCH
VOLUMECONTROL
BASE
MESSAGE
WAITING
LED
Figure 4-22.ATL Cordless Telephone
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HARDWARE DESCRIPTION
Multiline Voice Terminal Connection Information
Detailed connection information is provided under the “Connectivity” heading later in this
Section. Maximum cabling distances from the system cabinets to multiline voice terminals is
provided in Section 5,“Technical Specifications.”
Multiline Voice Terminal Feature Operations
Refer to Multiline Terminal User Guide (555-530-703) for information about feature operation.
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HARDWARE DESCRIPTION
Voice Terminal Adjuncts
The following adjuncts and associated power supplies are supported on corded multiline sets
only:
l MET Headset Adapter (for 10-Button MET sets); refer to “Headset Adapter Adjunct”
in Section 2.
l 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...

HARDWARE DESCRIPTION
Voice Terminal Adjunct Power Supplies
Table 4-F provides a summary of the supplemental power supplies and their applications.
Table 4-F.Supplemental Voice Terminal Power Supplies
POWER SUPPLYOUTPUT
2012D Transformer18 V ac
KS-22911, L1 Power-48 V dc
Supply
85B1 Power Unit18 V ac
FOR USE WITH
ADUs (except Z3A5).
MET sets that require local power
500A Headset Adapter.
S101A Speakerphone.
Selector Console.
Z3A5 ADU.
7300 H-Series sets that require local
power.
502B Headset Adapter (see...

HARDWARE DESCRIPTION
Asynchronous Data Units (ADUs)
Asynchronous Data Units and Multiple Asynchronous Data Units (MADUs) provide an
interface between ports on the TN726 Data Line CP and RS-232 Data Terminal Equipment
(DTE) or Data Communications Equipment (DCE). The DTE is equipment that provides a
data source, termination, or both—a host computer, printer, or a data terminal are examples
of DTE. The DCE is equipment that provides the functions required to establish, maintain,
and terminate data...

HARDWARE DESCRIPTION
lAn analog single-line voice terminal (2500 or 7100 series) or a 7300H series multiline
voice terminal (Z3A5 ADU required) can be connected to the ADU, allowing the voice
terminal and DTE to share a common wall jack and 4-pair cable run back to the SIP.
Note:Neither off-premises nor out-of-building service can be provided with ADUs.
For additional information on ADUs, see Z3A Asynchronous Data Unit User Manual (555-401-
701).
ADU Connection Information
Detailed connection information...

HARDWARE DESCRIPTION
Table 4-G.Asynchronous Data Units
UNITPEC
FEATURE
Z3A12169-001
3-foot plug-ended EIA connector and mod jack
for single-line set.
Z3A22169-002
EIA plug and mod jack for single-line set.
Z3A42169-004
3-foot receptacle-ended EIA cord and mod
jack for single-line set.
Z3A5
625063-foot plug-ended EIA connector and mod jack
for hybrid set. (PEC includes KS-22911 L1
power supply and D8W-87 cord.)
MADU
2169-005
Self-powered. Used for host or protocol
converter connections where voice...

HARDWARE DESCRIPTION
Peripheral Equipment
Peripheral Equipment includes the following devices that connect to the call processing
portion of the CPU/MEM (ZTN130) CP:
l System Administration Terminal (SAT); refer to “System Administration” in Section 2.
l Digital Tape Unit (DTU); refer to “Digital Tape Unit” in Section 2.
l Station Message Detail Recording (SMDR) printer or Call Accounting System (CAS);
refer to “Station Message Detail Recording” or “Call Accounting System” in Section
2.
Auxiliary...