Schmid Watson Specifiche Pagina 123

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Revision: 2008-02-07 11-1
11 Technical Specifications
11.1 Interfaces
11.1.1 DSL Line Interface
Standard referred: ETSI TS 101 524, ITU-T G.991.2 Annex B
Number of Pairs: 1, 2 , 3, 4
Line Rate per Pair: 200-5'696 kbit/s
Line Code: Trellis-coded PAM16, PAM-32
Nominal Line Impedance:
135
Transmit Power @ 135:
According to TS 101 524
Remote Powering Symmetric 117 VDC max
Current limit 59 mA max
Fault current to earth 2 mA max
Wetting Current 2.5 mA per pair (tabletop modems only)
Overvoltage Protection: Plug-in: ITU-T K.20 basic level (enhanced level with exter-
nal protection)
Tabletop: ITU-T K.21 basic level (enhanced level with ad-
ditional ground connection)
Regenerator: ITU-T K.45 basic level
Connector Type: RJ-45, 8 pin
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