iPOINT: 1 Gbps Trunk Port
The CCSM optical devices were first inserted into the iPOINT testbed
as a part of its trunk port.
Within the iPOINT laboratory, a full custom printed circuit board (PCB)
has been designed to incorporate the Vitesse 7105 and 7106 GaAs
drive and receive circuits for clock recovery and data framing.
A Vitesse 7107 component, mounted on the printed circuit board, is used
for the encoding and decoding 8B/10B Non-Return-to-Zero (NRZ) data.
The trunk port interfaces to the FPGA prototype switch, as its fifth port.
This port allows
the concentrated data from the four workstations to be sent via
a single high-speed fiber pair. Such a functionality is useful for
building a hierarchical network that includes clusters of workstations.
Full iPOINT setup, including Trunk port and optics
The 100 Mbps optical links connect to Sun Workstations.
The 1 Gbps optical link is connected in loopback mode to the iPOINT switch.
1 Gbps Eye-Pattern measurements
The receiver and amplifier (box) will be replaced by
Feng's monolithic OEIC receiver, designed and fabricated at UIUC.
1 Gbps Laser Transmit Driver and Laser
The laser was designed and fabricated by
Coleman's Laser, array, and MOCVD group
at UIUC.
iPOINT Trunk circuit board
The circuit board and ATM cell processing FPGA logic was designed
and implemented by the
iPOINT group at UIUC.
The Vitesse GaAs 7105/7106 (shown at bottom)
and Silicon 7107 chipsets were used for
clock recovery and serialization/deserialization.
Return to:
