
Next generation serial optical transceivers for
applications requiring high data rates
Small Form Factor 1063/1250 Mbps
Optical Transceivers
Increased density and
performance at reduced power
The IBM 1063-Mbps and 1250-Mbps
Small Form Factor (SFF) serial optical
converters are the next generation of
laser-based, optical transceivers for a
wide range of networking applications
requiring high data rates. The transceiv-
ers, which are designed for increased
densities, performance, and reduced
power, are well-suited for Gigabit
Ethernet, Fibre Channel, and 1394b
applications.
The 1063-Mbps SFF and IBM
1250-Mbps SFF optical transceivers use
short wave lasers and are available in pin
through hole (PTH) modules.
The small dimensions of the IBM 1063-
Mbps SFF and IBM 1250-Mbps SFF
optical transceivers are ideal in switches
and other products where many trans-
ceivers have to be configured in a small
space. Using these SFF devices,
manufacturers can increase the density
of transceivers on a board compared with
what was possible with previous optical
transceiver technologies.
Highlights
A 10-pin connector interfaces the host
card to the SFF optical transceiver.
Encoded (8B/10B) differential serial data
signals traverse this connector. The SFF
optical transceiver translates the data to
an optical signal that is coupled to the
outgoing fiber of a duplex cable. An
opto-electronic integrated photo-receiver,
located in the LC receptacle, detects
incoming, modulated light from the other
fiber. The optical signal is then converted
to an electrical signal, amplified, and
delivered to the host card as a differential
serial data signal through the same
10-pin connector.
The SFF devices feature:
• Small footprint
• 1063-Mbps and 1250-Mbps data rates
• Short wave (SW) laser
• Low-loss LC-type push-pull optical
connectors
• Bit error rate less than 10 -12
High-speed electrical interface
for Gigabit Ethernet, Fibre
Channel, and 1394b applications
The 1063-Mbps SFF and 1250-Mbps SFF
serial optical transceivers are integrated
fiber-optic transceivers providing a high-
speed serial electrical interface for
connecting processors, switches, and
peripherals through an optical fiber cable.
In the Gigabit Ethernet environment, for
example, these transceivers can be used
in local area network (LAN) switches or
hubs, as well as in interconnecting
processors. In storage area networks
(SANs), they can be used for transmitting
data between peripheral devices and
processors.
The SFF optical transceivers use short-
wave lasers that enable cost-effective
data transmission over optical fibers at
distances of up to 550 meters. They are
designed to connect easily to a system
card through an industry-standard
connector. Multi-mode optical fiber
cables, terminated with industry-standard
LC connectors, can be used.
The IBM Small Form Factor PTH SW
optical transceiver is ideal for high-
performance, compact designs.