ADTRAN 200410L1 User Manual
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Contents
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Chapter 5. Configuration Menu5-4 ESU LT User Manual 61200410L1-1Other option settings that have no effect in unframed modeinclude: CRC4, NFAS WORD, RFA GEN, AUTO DTE TXCLK, MAPPING, DATA INVERT, INBAND.Choices: CCS; CAS/TS16; UNFRAMEDLINE CODESelects either AMI or HDB3 line coding.Choices: HDB3; AMICRC-4When enabled, the CRC-4 checksum bits are transmitted inthe outgoing E1 data stream. Also the received signal ischecked for errors. CRC-4 can be enabled in both CCS andCAS modes. A CRC-4 checksum cannot be sent in unframedmode.Choices: Enable; DisableNFAS WORDIf enabled, the network interface receiver requires the NFASword (time slot 0 in odd frames) and the FAS word(time slot 0 in even frames) for frame sync. When disabled,only the FAS word is needed for frame sync.Choices: Enable; DisableRFA GENWhen enabled, remote frame alarm is transmitted toward thenetwork during alarm.Choices: Enable; DisableTIMING MODESelects the clock source for transmission toward the networkfrom the NI.Choices: Network, Internal; DTEThe clocking option selected always designates the clock source fortransmission. Clocking necessary for receiving data is always re-covered from incoming data. |
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