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1-2 Campus-RS Desktop Unit User Manual
When connecting to another Campus-RS Desktop Unit or Campus-RS Line
Unit, the three standard HDSL transmission rates are available. In addition,
the Desktop Unit can be configured to support an extended HDSL Operating
Mode, as follows:
• Over a single-loop connection, the Desktop Unit supports rates from
64 kbps to 2304 kbps in 64 kbps increments, depending on the interface
card.
• Over a dual-loop connection, the Desktop Unit supports rates from
256 kbps to 4608 kbps in 128 kbps increments, depending on the
interface card.
The transmission rate you select depends on the type of copper infrastructure
and the physical layout of the network. The extended HDSL Operating
Modes provide a way to make trade-offs between the reach of the HDSL line
and the transmission rate.
The default setting for the HDSL Operating Mode depends upon the interface
card. If necessary, change the HDSL Operating Mode and associated
parameters through the system configuration menus. Refer to the interface
card user manual for more information about the system configuration
menus.
While the Desktop Unit supports all the rates listed above, the
actual rates available depends on the interface card installed
in the Desktop Unit. For example, the Campus Fractional
Interface Card supports the full range of transmission rates,
while the CSU/DSX-1 Interface Card only supports the T1
standard rate. Refer to the interface card user manual for a list
of rates supported by the card.