ATT DEFINITY Communications System Generic 3 Pocket Reference Instructions Manual

CONTROL CIRCUIT PACKS
Switch Node Interface TN573 (G3rV2)
Terminates a fiber-optic link from a Switch Node Interface (SNI) in a
switch node to:
l
l
lSNI in another switch node carrier
El in a PPN
EI in an EPN
System Access and Maintenance TN1648
(G3rV2)
The TN1648 is an SPE component used for system maintenance.
A processor on the TN1648 runs control routines that connect to
maintenance software running on the RISC processor.
The TN1648 has two EIA-232 interfaces: one for the administration
terminal and,...

CONTROL CIRCUIT PACKS
Tape Drive TN1656
The TN1656 stores the software information for the system. It con-
tains a tape drive that provides 120 Mb of storage space and pro-
vides an LED that monitors the activity of the tape drive.
Tone-Clock (TN419B) — non-US Installations
The TN419B supplies call progress tones, touch tones, answer-
back tones, and trunk transmission test tones. The TN419B pro-
vides 2 MHz and 160 kHz clocks, and the 8 kHz frame clock. This
circuit pack can transmit the system clock...

CONTROL CIRCUIT PACKS
Tone Detector (TN420C) —
non-US Installations
The TN420C can be administered to detect and analyze tones on
the TDM bus. The TN420C has two network processing elements
(NPEs) with eight channels that provide the following: four dual tone
multifrequency receiver (DTMF) ports, two general purpose tone
detector (GPTD) ports, and two digital loop-around ports.
Tone Detector TN748C
The TN748C has four touch-tone receivers and two general-
purpose tone receivers that detect the following:...

PORT CIRCUIT PACKS
PORT CIRCUIT PACKS
Analog Line (8-port)
Analog Line (8-port)
Analog Line (8-port)
Analog Line (8-port)
Analog Line (16 port)
Analog Line (16-port)
Analog Line (16 port)
Analog Line (16 port)
Analog Line (16 port)
Announcement
Auxiliary Trunk
Auxiliary Trunk
CO Trunk
CO Trunk
CO Trunk
CO Trunk
CO Trunk
CO Trunk
Data Line (EIA)
DID Trunk
DID Trunk
DID Trunk
DID Trunk
DID Trunk
DIOD Trunk
Digital Line
Digital Line
DS1 Interface
DS1 Interface
DS1 Converter
DS1 Tie Trunk
Hybrid Line
ISDN...

PORT CIRCUIT PACKS
MET Line
Pooled Modem
Speech Synthesizer
Speech Synthesizer
Speech Synthesizer
Tie Trunk
Tie Trunk
Tie Trunk
Tie Trunk
Tie Trunk
Tie TrunkTN735
TN758
TN433
TN457
TN725 or TN725B
TN437
TN439
TN458
TN497
TN760D
TN2140
70 

PORT CIRCUIT PACKS
Analog Line (TN467) — non-US Installations
The TN467 provides eight ports for an interface between analog
voice terminals and the TDM bus. The TN467 has administrable
A-law companding, µ-law companding and complex input
impedance. This circuit pack provides secondary lightning
protection.
Analog Line (TN468B) — non-US Installations
The TN468B provides 16 analog line ports. Each port has tip and
ring signal leads. The TN468B is defaulted to A-law companding
and allows a down-link...

PORT CIRCUIT PACKS
Analog Line
Circuit Packs
FeatureTN742TN769
Number of Ports
88
Neon Message Waiting IndicatorsYes No
LED Terminals Yes  Yes
Feed Voltage-48 V
-48 V
Hard Bridging
 Yes  Yes
Station Adjunct YesYes
Secondary Lightning Protection YesYes
Same Premises—Out-of-Building
Yes  Yes
Terminals500-Type500-Type
2500-Type2500-Type
7100 Series7100 Series
Range With 500-Type/20,000
20,000
2500-Type/7102A Terminals†Feet
Feet
(24-Gauge Wire)
Range With 7101A/7103A15,200
15,200
TerminalsFeetFeet
(24-Gauge...

PORT CIRCUIT PACKS
Analog Line
Circuit Packs
FeatureTN746
TN746B
TN479
Number of Ports16
1616
Neon Message
Waiting IndicatorsYes
YesYes
LED TerminalsYes Yes
Yes
Feed Voltage-24 V
-48 V
-24V
Hard Bridging
No  Yes
No
Station Adjunct
No  YesNo
Secondary Lightning
ProtectionNoYesNo
Same Premises—
Out-of-BuildingNoYesNo
Terminals
500-Type
2500-Type
7102A*500-Type
2500-Type
7100 Series500-Type
2500-Type
7100 Series
Range With 500-Type/
2500-Type/7102A Ter-
minals† (24-Gauge Wire)3,100
Feet20,000
Feet3,000...

PORT CIRCUIT PACKS
Analog Line (TN2135) — non-US Installations
The TN2135 provides 16 analog line ports and ground key
detection. Each port has tip and ring signal leads. The TN2135 is
defaulted to A-law companding and allows a down-link message to
override the default and choose µ-law companding. The TN2135
has administrable ring patterns and secondary lightning protection.
Analog Line (TN2144) — non-US Installations
The TN2144 provides 16 analog line ports and ground key
detection. Each port has tip...

PORT CIRCUIT PACKS
Auxiliary Trunk (TN417) —
non-US Installations
The TN417 provides four ports for on-premises trunk applications
such as Music-on-Hold, Loudspeaker Paging, Code Calling, and
Recorded Telephone Dictation Access. The TN417 supports Audi-
chron® announcement equipment. TN417 hardware and firmware
are identical to that in the TN763C, except that the TN417 has A-
law companding on the pulse code modulation (PCM) signal and the
TN763C has µ-law companding on the PCM signal.
Each port has the...