Customizing V.35-Compatible Units
5-3
7924-A2-GB20-30
October 1997
Possible values for each parameter are listed in
Table 5-1
. See Appendix A,
Worksheets
, for help in selecting the appropriate configuration options for your
application.
Table 5-1.
V.35-Compatible Units Configuration Options
1) HDSL Card Type
Possible Settings: CP, CO
Default Setting: CP
Indicates the placement of the unit in the network configuration. To toggle the card type,
enter 1 at the Config prompt.
CP – Unit is on the customer premises side of the HDSL connection.
CO – Unit is on the central office (or central site) side of the HDSL connection.
2) Loops Enabled
Possible Settings: Single, Dual
Default Setting: Dual
Specifies which loops on the HDSL line are to be used in the connection. To change the
loops that are enabled, enter 2 at the Config prompt. The system then prompts you to
specify either (S)ingle or (D)ual Loops.
Dual – Loops A and B are enabled.
Single – Only Loop A is enabled.
3) Payload Rate
Possible Settings: 1 through 9 (for 64 through 1536 kbps)
Default Setting: 9 (1536 kbps)
Specifies the desired payload rate.
1 – 1 x 64 (64 kbps)
6 – 8 x 64 (512 kbps)
2 – 2 x 64 (128 kbps)
7 – 12 x 64 (768 kbps)
3 – 3 x 64 (192 kbps)
8 – 16 x 64 (1024 kbps)
4 – 4 x 64 (256 kbps)
9 – 24 x 64 (1536 kbps)
5 – 6 x 64 (384 kbps)
N – No change to rate
Options 8 and 9 (1024 and 1536 kbps) are only available when Loops A and B are
enabled. If only Loop A is enabled, the maximum payload rate is 768 kbps (option 7).
You must reset the board for changes to the card type or loops enabled
(options 1 or 2) parameters to take effect. A system message is displayed on the
terminal to remind you to reset the board. To reset the board, choose option 4
from the Main Menu or cycle the power on the board.
All configuration settings are stored in nonvolatile memory and are not affected by
the reset.
The transmit timing, HDSL interface/rate, firmware revision numbers, and serial
number displayed on the Board Configuration screen cannot be changed.
