11 Technical Specifications
11.1 Interfaces
11.1.1 DSL Line Interface
ETSI TS 101 524, ITU-T G.991.2 Annex B (Revision 2005)
Trellis-coded PAM-16, PAM-32
plug-in: ITU-T K.20 (basic level)
tabletop: ITU-T K.21 (basic level, enhanced level with addi-
tional ground connection)
Wetting current source
(plug-in modem only)
2.7 mA @ 48VDC per pair (with 48VDC power supply and
0 Ohm loop resistance)
Plug-in: 1.5 mA per pair (0 Ohm loop resistance)
Tabletop: 0.25 mA per pair in 1-pair operation
0.125 mA per pair in 2-pair operation
11.1.2 Ethernet Interfaces
10/100 Mbps (Auto-negotiation)
Half/Full Duplex (Auto-negotiation)
PAUSE Frames (full duplex)
Backpressure (half duplex)
11.1.3 Monitor Interface
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