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Circuit Pack and Auxiliary Equipment Classifications

Circuit packs are listed by these classifications:

Equipment Classifications
Circuit Packs
Analog Line (8)

TN467
TN432
TN431
TN411B
TN742
TN769

2-Wire Digital & Analog Line (16) and (24)

TN2149
TN2135
TN468B
TN448
TN746
TN746B
TN2181
TN2183
TN793
TN2793

Data Line & Digital Line 4-Wire

TN726B
TN754B
TN564B
TN413

2-Wire Digital & Analog Line 24 Ports

TN2224
TN2214
TN793
TN2793
TN2214B
TN2224B
TN793B
TN2793B

Hybrid Line

TN762
TN762B

Multibutton Electronic Telephone (MET) Line

TN735

AUX Trunk

TN417
TN763
TN763D

Central Office Trunk

TN429
TN493
TN422
TN421
TN438B
TN447
TN465C
TN747B
TN2138
TN2147C
TN2148

Central Office Trunk 3-Wire

TN2199

Direct Inward Dialing/Direct Inward Outward Dialing (DID/DIOD) Trunk

TN429
TN2139
TN459B
TN436B
TN753
TN2146
TN414

Tie Trunk

TN478
TN458
TN449
TN760D
TN760C
TN434
TN415

DS1 Tie Trunk

TN483
TN722
TN767
TN722B
TN464F

ISDN BRI Line 4-Wire

TN556B

ISDN BRI Line 2-Wire

TN2198

Packet Data Line

TN553

Four-Port DIOD

TN2184


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