Technical Data
The HFBR-511X family of trans-
ceivers from Hewlett-Packard
consists of high performance,
cost effective modules for optical
data communication applications
at the 100 Mbps/125 MBd rate.
our high-performance, reliable,
long-wavelength optical devices
and proven circuit technology to
give long life and consistent
performance.
The transceivers feature full
compliance with the Fiber
Distributed Data Interface (FDDI)
Physical Media Dependent (PMD)
standard. This standard has been
approved as an International
Standard, ISO/IEC 9314-3, and
an American National Standard,
ANSI X3.166 - 1990. The HFBR-
5111 represents the 2x11
The transceivers are optimized
for 125 MBd operation but can be
used over a wide range of signal
rates. The transceivers are
guaranteed to meet FDDI PMD
specifications when used within
the operating conditions specified
in this document.
package style. The “2x11”
denotes two rows of eleven pins.
The HFBR-5112 and HFBR-5113
represent the Narrow and
Standard 1x13 package styles,
respectively. The “1x13” denotes
one row of thirteen pins.
These HFBR-511X Series trans-
ceivers are also useful for both
ATM 100 Mbps interfaces and
Fast Ethernet 100 Base-FX
interfaces. The ATM Forum User-
Network Interface (UNI)
Standard, Version 3.0, defines the
Physical Layer for 100 Mbps
Multimode Fiber Interface for
ATM in Section 2.3 to be the
The modules are designed for 50
or 62.5 µm core multimode
optical fiber and operate at a
nominal wavelength of 1300 nm.
Each transceiver incorporates
5964-9019E (2/96)
92