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About Your DSU
1-53550-A2-GB20-10 February 1995
Table 1-1
(2 of 2)
General Technical Specifications
Specifications Criteria
HEAT DISSIPATION (MAX.) AT 115 VAC
3550 DSU
3550 DSU with DBM
3550 DSU with 2-Port TDM/Flex
3551 DSU
3551 DSU with DBM
3000 Series Carrier (16 DSUs with DBMs
plus SDU and fan module)
22.16 Btu/hr
29.00 Btu/hr
29.21 Btu/hr
22.16 Btu/hr
27.30 Btu/hr
563.00 Btu/hr
PORT RATES Async or Sync rates: 64, 56, 48, 19.2, 14.4, 12.0, 9.6, 4.8, 2.4, and
1.2 kbps
Other asynchronous rates (e.g., 150, 300, 600, and 1800 bps) can be
obtained through oversampling
Asynchronous rates support CCITT V.14 extended rate range at
8 to 12 bits per character, including the
start
and
stop
bit (+2.3, –2.5
percent overspeed/underspeed compensation at 10 bits per character)
NMS COMPATIBILITY
COMSPHERE 6700 Series NMS, Release 4.0 or greater