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S/T ISDN Interface
Support OSI level 1 conform to UIT-T I.430
for basic access at S and T interfaces (ETSI
300012/ANSI T1.605)
Line interface transformer direct drive
Full-duplex transmission at 192kbps on
separate transmit and receive twisted pairs
using alternate mark inversion (AMI) line
coding
2 B channels at 64kbps each plus 1 D channel
at 16kbps
All I.430 wiring configurations supported
including passive bus for TE'S distributed
point to point and point to multipoint
Multiframe support
Analog part: included with adaptive detection
threshold and equalizer
USB Interface
USB 1.0 specification full compliance, 1.1
specification compatibility (1.1 power
management compliance), 12 Mbps full speed
On-chip USB transceiver with digital PLL
6 isochronous endpoints for B1, B2, D
channels data. interrupt endpoint for I430
Isdn protocol and data.control endpoint for
USB standard plus vendor specific request
Communication device class and vendor
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