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The DS33Z44 extends four 10/100 Ethernet LAN
segments by encapsulating MAC frames in HDLC or
X.86 (LAPS) for transmission over four PDH/TDM
data streams. The serial links support bidirectional
synchronous interconnect up to 52Mbps over xDSL,
T1/E1/J1, T3/E3, V.35/Optical, OC-1/EC-1, or
SONET/SDH Tributary.
The device performs store-and-forward of packets
with full wire-speed transport capability. The built-in
Committed Information Rate (CIR) controllers
provide fractional bandwidth allocation up to the line
rate in increments of 512kbps. The DS33Z44 can
operate with an inexpensive external processor,
EEPROM or in a stand-alone hardware mode.
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