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2.048Mb
p
s Wireless Modem
TECHNICAL: 0118 931 2233
Fractional T1 CSU/DSU Applications
• In most Fractional T1 applications, the 2.048Mbps Wireless Modem replaces the CSU/DSU
(or OCU) used in regular wired connections.
Figure C-5. Fractional T1/DSU Network Interface
This type of connection is referred to as a DSU network connection. In order to meet the
applicable pulse mask requirements of the DSX-1 standard, the Pulse Shape Parameter
should be set according to the line length (option 1 to 5).
Figure C-6. Fractional T1/CSU Network Interface
In several applications, the 2.048Mbps Wireless Modem might be connected to CSU/DSU
equipment, as shown in Figure C-7. This type of connection may be chosen because of a
technical (e.g., a special MUX interface not supported by 2.048Mbps Wireless Modem) or
other reason. This type of connection is referred to as a CSU network connection and the
Line Length Parameters menu should be set according to the sensitivity level of the
CSU/DSU (option 6 to 8)