A. Configuration Options
A-4
May 2002 8700-A2-GB20-40
EIA-530 Payload Rate
Possible Settings (Model 8777): 64, 128, 256, 384, 512, 768, 1024, 1536
Default Setting: 1536
Possible Settings (Model 8779): 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 768,
960, 1024, 1536, 1920, 1984, 2048
Default Setting: 2048
Specifies the synchronous port speed of a remote NTU that is an EIA-530 model so the
unit can run at the highest DSL line rate supported.
EIA-530 Payload Rate is only available when the unit is configured as an LTU.
For the Model 8779 to achieve the payload rates listed above, both the 8779 card
and the 7975-A2 endpoint must be operating with firmware 02.03.12 or greater. In
lower firmware versions, the payload rate is only selectable at a DSL line rate of
144 Kbps while all other rates default to the maximum, depending on the DSL line
rate selected.
64 – 2048 – The synchronous port speed of the remote NTU, in Kbps.
Transmit Attenuation
Possible Settings: 0dB – 15dB
Default Setting: 0dB
Determines how much the unit’s transmit power is reduced to accommodate a short line
length.
0dB – The full transmit power is used (no attenuation).
1dB – 15dB – The unit’s transmit power is reduced by the specified amount.
Peer IP Address
(LTU)
Possible Settings: 001.000.000.000 – 223.255.255.255, Clear
Default Setting: 000.000.000.000
Specifies the peer IP address providing the remote management link on the DSL loop.
Peer IP Address is only available when the unit is configured as an LTU and the unit
is in not running in IP Conservative mode.
Address Field – (001.000.000.000 – 223.255.255.255) – Enter an address for the peer
unit. The range for the first byte is 001 to 223, with the exception of 127. The range for the
remaining three bytes is 000 to 255. The IP address must be in the same subnet as the
MCC backplane address.
Clear – Clears the IP address and sets to all zeros.
Table A-1. Network Interface Options (3 of 4)