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AAL Analog Access Line AAL ' Analog Access Line using digital loss pads

Packet Facilities (IXC/ILF, ATO, MPG, DEO). Enterprise Network (PBX, VG). IDLC. WAN (VG only). Gateway. DAL. DAL. AAL(A)/FXO. AAL(D)/FXD. PAL. DAL. PAL. AAL. Packet Connection. PAL. TDM Connection. Analog Connection. AAL Analog Access Line AAL ' Analog Access Line using

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AAL Analog Access Line AAL ' Analog Access Line using digital loss pads

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  1. Packet Facilities(IXC/ILF, ATO, MPG, DEO) EnterpriseNetwork(PBX, VG) IDLC WAN (VG only) Gateway DAL DAL AAL(A)/FXO AAL(D)/FXD PAL DAL PAL AAL Packet Connection PAL TDM Connection Analog Connection AAL Analog Access Line AAL' Analog Access Line using digital loss pads AAL(A) Analog Access Line with Analog interface at PBX AAL(D) Analog Access Line with Digital interface at PBX ATO Access Tandem Office CB Channel Bank DAL Digital Access Line DEO Digital End Office DT Digital Trunk FXD Foreign Exchange Digital with Digital interface at VG FXO Foreign Exchange Office with Analog interface at VG IAD Integrated Access Device (DSL modem) IDLC Integrated Digital Loop Carrier ILF Inter-LATA Facilities IXC Inter-Exchange Carrier MPG Mobile Packet Gateway MSC Mobile Switching Center MTA Multimedia Terminal Adaptor (cable modem) ONU Optical Network Unit PAL Packet Access Line RDT Remote Digital Terminal RSU Remote Switching Unit VG Voice Gateway WAN Wide Area Network port WAN Packet Network Ports WAN Tandem Switched NetworkDigitalTrunks DAL Digital End Office Complex (including ONU, RDT & RSU) Enterprise NetworkAccess Ports TDM Offices(IXC/ILF, ATO, MSC, DEO) DT DT AAL CB AAL Carrier ProvidedAccess Lines DAL AAL' PAL DAL MTA/IAD(VG) Figure 1 – DEO Loss Plan Ports and Interconnections Revised T1.508 Loss Plan Roger Britt

  2. PAL WAN PAL PAL DAL DAL DAL DAL DT DAL CB DGS DGS ONS OPS Packet Connection TDM Connection Analog Connection AAL Analog Access Line AAL(A) Analog Access Line with Analog interface at PBX ATT Analog Tie Trunk CB Channel Bank DAL Digital Access Line DEO Digital End Office DT Digital Trunk FXD Foreign Exchange Digital with Digital interface at VG FXO Foreign Exchange Office with Analog interface at VG IAD Integrated Access Device (DSL modem) IDLC Integrated Digital Loop Carrier MTA Multimedia Terminal Adaptor (cable modem) ONS On Premise Station OPS Off Premise Station PAL Packet Access Line VG Voice Gateway WAN Wide Area Network port Packet Facilities(DEO, IDLC, VG) PAL WAN Voice Gateway Packet Network Ports DEO WAN WAN VoiceGateway(Enterprise,MTA & IAD) PublicSwitched NetworkPorts Private NetworkPorts FXO AAL PBX DAL DAL FXD AAL TelephoneAccess Lines AAL(A) ONS ATT ATT OPS Figure 2 – Voice Gateway Loss Plan Ports and Interconnections Revised T1.508 Loss Plan Roger Britt

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