DT Etherlink IV
User Manual
- 69 -
WARNING
FOR LOW BASERATES YOU SHOULD USE THE LOWEST POSSIBLE
NUMBER OF CODE LEVELS. FOR A STANARD BASED DEVICE USE
PAM16 AND NOT PAM32.
On the Slave device, the <BASERATE AUTO> command adapts the rate of the Slave device to the
rate of the Master device. In this case, PAM and Annex are automatically detected (opposite Annex
in the <CONFIG> configuration AB appears, opposite PAM is Auto). The command does not change
the Annex and PAM modes in the configuration. In the Slave mode, the <BASERATE AUTO>
command automatically detects all configurations.
4.6.5.7 <PAM [16/32] [N]> or <PAM [4-128] [N]> Command
This 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 is
entered without typing the number N
CO_CM>PAM 16
4.6.5.8 <PAYLOAD list/NONE [N=1..4]> Command
This command sets the list of streams transmitted over the SHDSL channel. N is the number of the
SHDSL 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 (for
example E1-1, E11), and by numbers (for example 1). Spaces in the list are not allowed. The
parameter NONE deactivates transmission of E1 and WAN over this SHDSL interface. For modems
with just one SHDSL channel, the command is entered without typing the number N
CO_CM>PAYLOAD V35,WAN
CO_CM>PAYLOAD E11,WAN
CO_CM>PAYLOAD NONE
4.6.5.9 <ANNEX A/B/AB [N=1..4]> Command
This command enables the transmission standard G.991.2 ANNEX A or ANNEX B, where N is the
number of the SHDSL interface. The ANNEX AB automatically selects the transmission standard.
Note:
If devices use different transmission standards, synchronization will not be established
between them.
4.6.5.10 <SETCLOCK list [N=1..4]> Command
This command sets the priority list of clock sources for the SHDSL channel, where N is the number
of the SHDSL channel. The parameter N can be absent for single-channel modems. The possible
clock 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, INTERNAL
The external clock source should be either the first one in the priority list or be not used at all. The
next clock sources in the list should be E1 channels and/or Nx64 interface. The internal clock source
should be the last one in the priority list. It is even not necessary to type it in the command.
