74LED DescriptionACT • Off: No data is being transmitted or received;• Flashing: Data is being received or/and transmitted.Interface cables and the connection methodsFor more information about E3 interface cables and the connection methods, see "E3/T3 interface."MIM-1CT3IntroductionThe 1-port channelized T3 interface module (MIM-1CT3) serves to:• Transmit/Receive and handle one channel of T3 fast traffic, as well as provide the accessing ofT3 traffic when working in T3 mode.• Provide the low-speed accessing service at the speed of n No 64 kbps or 56 kbps, where n issmaller than or equal to 128, when working in CT3 mode.NOTE:T3 represents the tertiary group rate of T system in the TDM system, that is, 44.736 Mbps. A T3channel can be channelized into 28 T1 lines through the demultiplexing processes of T23 and T12,each T1 line also supporting the operating modes of CT1. T23 is used to indicate either T2-to-T3multiplex or T3-to-T2 demultiplex, and T12 to indicate T1-to-T2 multiplex or T2-to-T1 demultiplex."T23" and "T12" discussed here represent the demultiplex process.Interface specificationsTable 101 Interface specificationsItem DescriptionConnector SMBNumber of connectors 2Interface standard• G.703• G.704• G.752• AT & T TR 54014• AT & T TR 62415• ANSI T1.107Interface rate 44.736 MbpsInterface cable type T3 cable (75-ohm coaxial cable)Operating mode T3CT3Supported service T3 leased line
