COMSPHERE 3550 Series Data Service Units
1-8 December 1996 3550-A2-GB20-20
Table 1-4
2-Port TDM/Flex Technical Specifications
Specifications Criteria
APPLICATION
Multiplexing
Digital sharing
Provides time division multiplexing of two independent ports.
Allows consecutive ports to share the same TDM/Flex channel.
PORT SYNCHRONOUS RATES 1.2, 2.4, 4.8, 9.6, 12.0, 14.4, 19.2, 48, 56, and 64 kbps
PORT ASYNCHRONOUS RATES 150, 300, 600, 1200, and 1800 bps plus all primary (DSU) rates.
Asynchronous rates support +2.3, –2.5 percent overspeed/
underspeed compensation.
PORT DTE INTERFACE
3550 DSU (2-port TDM/Flex) Provides an additional 25-pin D-subminiature connector for a total of two
EIA-232 or V.35 interfaces.
NMS SUPPORT TDM/Flex capability is fully supported by Release 4.0 or greater
COMSPHERE 6700 Series NMS.
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