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DT Etherlink IV User Manual- 69 -WARNINGFOR LOW BASERATES YOU SHOULD USE THE LOWEST POSSIBLENUMBER OF CODE LEVELS. FOR A STANARD BASED DEVICE USEPAM16 AND NOT PAM32.On the Slave device, the command adapts the rate of the Slave device to therate of the Master device. In this case, PAM and Annex are automatically detected (opposite Annexin the configuration AB appears, opposite PAM is Auto). The command does not changethe Annex and PAM modes in the configuration. In the Slave mode, the command automatically detects all configurations.4.6.5.7 or CommandThis command sets the number of levels in the line code. The following options are possible –4,8,16, 32, 64 & 128 for EXT mode ON. For modems with just one SHDSL channel, the command isentered without typing the number NCO_CM>PAM 164.6.5.8 CommandThis command sets the list of streams transmitted over the SHDSL channel. N is the number of theSHDSL channel. The parameter list displays the list of E1, V.35 (Nx64) and WAN interfaces(Ethernet), separated by comma. The E1 interface may be denoted both by a short-form (forexample E1-1, E11), and by numbers (for example 1). Spaces in the list are not allowed. Theparameter NONE deactivates transmission of E1 and WAN over this SHDSL interface. For modemswith just one SHDSL channel, the command is entered without typing the number NCO_CM>PAYLOAD V35,WANCO_CM>PAYLOAD E11,WANCO_CM>PAYLOAD NONE4.6.5.9 CommandThis command enables the transmission standard G.991.2 ANNEX A or ANNEX B, where N is thenumber of the SHDSL interface. The ANNEX AB automatically selects the transmission standard.Note: If devices use different transmission standards, synchronization will not be establishedbetween them.4.6.5.10 CommandThis command sets the priority list of clock sources for the SHDSL channel, where N is the numberof the SHDSL channel. The parameter N can be absent for single-channel modems. The possibleclock sources are: External sync source: EXT, EXTERNAL first E1 channel: 1, E11, E1-1, E1_1 second E1 channel: 2, E12, E1-2, E1_2 third and fourth E1 channel Nx64 interface: V35 internal sync source: INT, INTERNALThe external clock source should be either the first one in the priority list or be not used at all. Thenext clock sources in the list should be E1 channels and/or Nx64 interface. The internal clock sourceshould be the last one in the priority list. It is even not necessary to type it in the command.
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