List of telephone switches

From Wikipedia, the free encyclopedia

This is intended to be a list of the more common central office (telephone company operated) phone switches. This list is nowhere near complete. Many British and non-North American switches are missing.

Contents

  • GTD5

  • E10 Five
  • E10B
  • System 12 (formerly ITT 1240)
  • System 12 Remote Switching Unit (RSU)
  • OCB-283 (1000 Family)

  • 32A42
  • 32A44
  • 35E97
    • 370A
  • 370B
  • 375A
  • 375B
  • 385A
  • 385B
  • C1-EAX
  • CXP5
  • CXP5A
  • EAX1
  • EAX2
  • EAX3
  • EAX5
  • ESU 3072 Line
  • FW1
  • GRD3-EAX
  • GTD5
  • GTD5-EAX
  • XPT No. 1
  • SATT
  • TSPS
  • 101 Director

Currently Available Avaya Switches

  • Communication Manager
  • G600
  • INDeX
  • IP Office
  • MERLIN MAGIX, Integrated Communications System
  • PARTNER ACS (Advanced Communications System)
  • PARTNER Small Office Edition
  • S8700
  • S8710

Discontinued Avaya switches (Some previously Lucent and AT&T)

  • DEFINITY BCS (Business Communications System)
  • DEFINITY ECS (Enterprise Communications Server)
  • DEFINITY G3R (Rack)
  • DEFINITY Communications System Generic 2 (Formerly, System 85)
  • DEFINITY Communications System Generic 3 (Formerly System 75)
  • DIMENSION (Previously made by AT&T)
  • G3MCC (Multi-Carrier Cabinet)
  • HORIZON (Previously made by AT&T)
  • MERLIN ("Classic", Originally made from AT&T)
  • MERLIN PLUS ("Classic", Originally made from AT&T)
  • MERLIN II ("Classic", Originally made from AT&T))
  • MERLIN LEGEND
  • PARTNER II
  • PARTNER PLUS
  • SPIRIT
  • System 25 (Previously made by AT&T)
  • System 75 (Previously made by AT&T)
  • System 75 XE (Previously made by AT&T)
  • System 85 (Previously made by AT&T)


  • UAX5
  • UAX6
  • UAX7
  • UAX8
  • UAX9
  • UAX10
  • UAX11
  • UAX12
  • UAX13
  • UAX14
  • UXE7
  • UXE8

  • CSX 1100
  • CSX 2100

  • PACER (digital)
  • WIZARD (analog)
  • CARE Phone system

  • DEX 200
  • DEX 400
  • DEX 600
  • DEX 600E
  • DEX 600SC

  • AGF
  • AKE
  • AR10
  • ARB (telex)
  • ARE11
  • ARF10
  • ARF102
  • ARK
  • ARM20
  • ARM 202
  • ATE
  • ATE-NB
  • ATE-VB
  • AXE 10
    • AXE 10 Remote
    • AXE Local 7
    • AXE Transgate
  • AXE810
  • MD110
  • Rurax

  • C140
  • C460
  • FETEX 100
  • FETEX 150
    • FETEX 150 Local
    • FETEX 150 Toll

  • UT100

  • 1210 (originally North Electric DSS)
  • 1240
  • 7J
  • 7X2
  • 7X3
  • 7XB
  • A1
  • A1-SPC
  • CRX
  • CSX
  • K60 (ITT-Kellogg)
  • K7 (ITT-Kellogg)
  • K1040
  • Pentaconta
  • Metaconta
  • PC32B
  • Relaymatic (ITT-Kellogg)
  • TCS5
  • TRS4
  • AN/TTC-22 100 Line Automatic/Manual Military Tactical Switch (retired)

  • All Relay
  • CS100
  • CS200
  • CX 2
  • CX 6
  • CX 90
  • LXP-3
  • LXP-4

  • GX5000L
  • GX5000S

(these are MTSO Cellular switches)

  • EMX2500
  • EMX4
  • EMX5000

  • C410
  • C460
  • NC10
  • NC23
  • NC23SE
  • NC230
  • NCA20
  • NCX23
  • ND10A
  • ND10B
  • ND20A
  • ND20B
  • ND20S
  • NEAX-61
  • NEAX-61E
    • NEAX-61E Remote
  • NESXS (Nippon Electric sxs based on license from Western Electric)

  • DX200
    • DX220
    • DX220 Compact

  • CX (CX evolved from the "Automanual" system designed by Edward Clements "Clement eXchange")
    • CX30 30 line
    • CX60 60 line
    • CX100 100 line
    • CX200 "broadspan" up to 200 lines)
    • CX1000 large CX expandable to 10,000 lines!
  • DSS1 (North's first digital switch for local exchanges)
  • DSS2
  • ETS4 (Large #4A-ETS class toll switch based on Ericsson "code switch")
  • NTS4E 4-wire toll switch with Xbar switches an "Omni" processor(s)
  • NX1 Family NX1A, B, C & D; All based on Ericsson By-Path Crossbar license)
    • NX1D (Final production version)
    • NX1E (NX-1D with OMNI Processor for trunk and number-group translation services)
  • NX2 Family Small 90 - 1800 line CDO Xbar
    • NX2 Original design
    • NX2A (improved cabinets)
    • UN2 (United Telecom version of NX-2A)
    • Switcher (NX-2A in a trailer for portable/emergency use)
      • TSW
      • TSW2
      • TSW3
  • AN/TTC-20 568 Line Military Fixed Switch (Used by US Air Force - only one was known in existence at Sembach AB, Germany) (retired)
  • AN/TTC-30 568 Line Military Tactical Mobile Switch (Used by US Army and Air Force) (retired)

  • DMS-10 (First "production" class 5 digital switch installed in public telephone network)
    • DMS-10 RLCM (640 line remote)
    • DMS-10 RSLE (520 line remote)
    • DMS-10 RSLM (640 line remote)
    • DMS-10S (super small DMS-10 for very small exchanges <640 lines)
    • DMS-10M (prepackaged DMS-10, a CDO in a "box")
  • DMS-100 FAMILY of Digital Exchanges
    • DMS-100 (large local digital)
    • DMS-100/200 (local/toll digital)
    • DMS-200 (toll digital)
    • DMS-250 (Equal Access Carrier Switch-digital)
    • DMS-300 (International Gateway Switch-digital)
    • DMS-300/250 (combo Carrier/International Gateway)
    • DMS-500 (Local/Toll + CLEC Switch)
    • DMS-MTX (Cellular MTSO)
  • SP1 (Electronic Stored Program Control using mini-bar switches)
    • SP1 2-Wire (Local)
    • SP1 4-Wire (Toll)
    • SP1E (used NT40 processor)
  • NE-1ESS (Northern Electric version of Western Electric #1ESS {licensee})
  • NE-4A (Northern Electric version of Western Electric 4A toll {licensee})
  • NE-5XB (Northern Electric version of Western Electric #5Xbar {licensee})
  • SA1 (Small Northern designed crossbar CDO)
    • SA2 (Small Northern designed crossbar CDO)
  • SF1 (Small Northern designed crossbar CDO)

  • PRX/A
  • PRX/D
  • UR
  • UR NB
  • UR49
  • URVB
  • UV

  • TRANSip
  • SLICE
  • HDX
  • IGX-A
  • IGX-MT
  • IGX-N
  • MDX 10K
  • MDX 384 modular exchange "stackable" to 384 lines/trunks

  • No. 51 Step-by-Step
  • EDX-P
  • EMD55
  • EMD56
  • EMD57
  • ESK - CP24
  • ESK - CP44
  • ESK - CP44A
  • EWSD
    • Remote Switch Unit RSU-DE3
    • Remote Switch Unit RSU-DE4
    • Remote Switch Unit RSU-DE5
  • RCUB-800C
  • DCO-CS (Formerly Stromberg Carlson DCO)
  • HiQ8000

  • GSX9000
  • PSX6000

EMS 12000 Topcom 601 Topcom 200 Hicom 300

  • DCO 21
  • DCO 80
  • DCO 200
  • DCO 360
  • Century DCO6000
    • DCO Remote Line Switch 1000 (RLS 1000)
    • DCO Remote Line Switch 4000 (RLS 4000)
    • RLS 450
  • DCO-SE
  • DTM
  • ESC-1 "Crossreed" electronic exchange
    • ESC-3
  • MS30
  • SC#5 (#5xbar licensed from Northern Electric (Canada) for US sales/distribution )
  • XY (Stromberg version of Ericsson "flat motion" switch operated in horizontal planes)

  • P51

  • PK 201
  • PK 202

  • IMA2
  • ITS 4
  • ITS 4/5
  • ITS 5

  • No. 1
  • No. 350A
  • No. 355A CDO (Community Dial Office)
  • No. 356A
  • No. 360A

  • Local Panel
  • Panel Tandem
    • Battery cut-off (BCO)
    • Ground cut-off (GCO)

  • Crossbar Tandem
  • No. 1 Crossbar
  • No. 3 Crossbar
    • No. 3 Crossbar 2-Wire
    • No. 3 Crossbar 4-Wire
  • No. 4 Crossbar
  • No. 4A/CTS Crossbar (Card Translator System)
  • No. 4A/ETS Crossbar (Electronic Translator System)
  • No. 4M Crossbar
  • No. 4M ETS Crossbar
  • No. 5 Crossbar
    • No. 5 Crossbar 2-Wire
    • No. 5 Crossbar 4-Wire
    • No. 5 ETS Crossbar
  • No. 5A Crossbar

  • No. 101 ESS
  • No. 1 ESS (1ESS)
    • No. 1 ESS 2-Wire
    • No. 1 ESS 4-Wire
  • No. 1A ESS
  • No. 2 ESS (2ESS)
    • No. 2A ESS
    • No. 2B ESS
    • No. 2C ESS
  • No. 3 ESS (3ESS)
  • PRX/A

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