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2
The HFBR-5602 has been developed with 850 nm short
wavelength VCSEL technology while the HFCT-5612 is
based on 1300 nm long wavelength Fabry Perot laser
technology.
The HFBR-5602 complies with Annex E of the GBIC speci-
cation Revision 5.4. In the Fibre Channel environment,
the HFBR-5602 achieves 300 m transmission distance
with 62.5 µm and 50 µm multimode bre.
The HFCT-5612 complies with Annex C of the GBIC speci-
cation Revision 5.4 and reaches 10 km with 9/125 µm
single mode ber. Both the HFBR-5602 and the HFCT-
5612 are Class 1 Eye Safe laser devices.
Serial Identication
The HFBR-56xx and HFCT-5612 family complies with
Annex D (Module Denition 4) of the GBIC specica-
tion Revision 5.4, which denes the Serial Identication
Protocol.
Denition 4 species a serial denition protocol. For this
denition, upon power up, MOD_DEF(1:2) (Pins 5 and
6 on the 20-pin connector) appear as NC. Pin 4 is TTL
ground. When the host system detects this condition, it
activates the public domain serial protocol. The protocol
uses the 2-wire serial CMOS E2PROM protocol of the
ATMEL AT24C01A or similar.
The data transfer protocol and the details of the
mandatory and vendor specific data structures are
dened in Annex D of the GBIC specication Revision
5.4.
Regulatory Compliance
See the Regulatory Compliance Table for the targeted
typical and measured performance for these transceiv-
ers.
The overall equipment design will determine the level it
is able to be certied to. These transceiver performance
targets are oered as a gure of merit to assist the
designer in considering their use in equipment designs.
Electrostatic Discharge (ESD)
There are two design cases in which immunity to ESD
damage is important.
The rst case is during handling of the transceiver prior
to inserting it into the host system. It is important to
use normal ESD handling precautions for ESD sensitive
devices. These precautions include using grounded wrist
straps, work benches, and oor mats in ESD controlled
areas.
The second case to consider is static discharges during
insertion of the GBIC into the host system. There are two
guide tabs integrated into the 20-pin connector on the
GBIC. These guide tabs are connected to circuit ground.
When the GBIC is inserted into the host system, these
tabs shall engage before any of the connector pins. The
mating connector in the host system should have its tabs
connected to circuit ground. This discharges any stray
static charges and establishes a reference for the power
supplies that are sequenced later.
Electromagnetic Interference (EMI)
Most equipment designs utilizing these high-speed trans-
ceivers from Avago will be required to meet the require-
ments of FCC in the United States, CENELEC EN55022
(CISPR 22) in Europe and VCCI in Japan.
Immunity
Equipment utilizing these transceivers will be subject to
radio-frequency electromagnetic elds in some environ-
ments. These transceivers have good immunity to such
elds due to their shielded design.
Eye Safety
Laser-based GBIC transceivers provide Class 1 (IEC 60825-
1) and Class I (US 21 CFR[J]) laser eye safety by design.
Avago has tested the current transceiver design for
compliance with the requirements listed below under
normal operating conditions and for compliance under
single fault conditions.
Outline Drawing
An outline drawing is shown in Figure 1. More detailed
drawings are shown in Gigabit Interface Converter speci-
cation Rev. 5.4.
CAUTION:
There are no user serviceable parts nor any maintenance
required for the HFBR-56xx and HFCT-56xx product
family. All adjustments are made at the factory before
shipment to our customers. Tampering with or modifying
the performance of any Avago GBIC unit will result in
voided product warranty. It may also result in improper
operation of the circuitry, and possible overstress of the
semiconductor components. Device degradation or
product failure may result.
Connection of either the HFBR-5602 or the HFCT-5612 to
a non-approved optical source, operating above the rec-
ommended absolute maximum conditions, or operating
in a manner inconsistent with unit design and function,
may result in hazardous radiation exposure and may
be considered an act of modifying or manufacturing a
laser product. The person(s) performing such an act is
required by law to recertify the laser product under the
provisions of US 21 CFR (Subchapter J).