The HFBR-5601 complies with Annex G of the GBIC speci- The second case to consider is static discharges during
fication Revision 5.4. In the 1000 BASE-SX environment insertion of the GBIC into the host system. There are two
the HFBR-5601 achieves 220 m transmission distance guide tabs integrated into the 20-pin connector on the
with 62.5 µm and 500 m with 50 µm multimode fiber GBIC. These guide tabs are connected to circuit ground.
respectively.
When the GBIC is inserted into the host system, these tabs
will engage before any of the connector pins. The mating
connector in the host system must 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.
The HFCT-5611 complies with Annex F of the GBIC speci-
fication Revision 5.4 and reaches 10 km with 9/125 µm
single mode fiber. Both the HFBR-5601 and the HFCT-5611
are Class 1 Eye Safe laser devices.
Serial Identification
Electromagnetic Interference (EMI)
TheHFBR-56xxandHFCT-5611familycomplieswithAnnex
D (Module Definition 4) of the GBIC specification Revision
5.4, which defines the Serial Identification Protocol.
Most equipment designs utilizing these high-speed trans-
ceivers from Avago Technologies will be required to meet
the requirements of FCC in the United States, CENELEC
EN55022 (CISPR 22) in Europe and VCCI in Japan.
Definition 4 specifies a serial definition protocol. For this
definition, 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 E PROM protocol of the ATMEL
AT24C01A or similar.
Immunity
Equipment utilizing these transceivers will be subject to
radio-frequency electromagnetic fields in some environ-
ments. These transceivers have good immunity to such
fields due to their shielded design.
2
The data transfer protocol and the details of the mandatory
and vendor specific data structures are defined in Annex
D of the GBIC specification Revision 5.4.
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 Technologies has tested the current transceiver
design for compliance with the requirements listed below
under normal operating conditions and for compliance
under single fault conditions.
Regulatory Compliance
See the Regulatory Compliance Table for the targeted
typical and measured performance for these transceivers.
The overall equipment design will determine the level it
is able to be certified to. These transceiver performance
targets are offered as a figure of merit to assist the designer
in considering their use in equipment designs.
Outline Drawing
An outline drawing is shown in Figure 1. More detailed
drawings are shown in Gigabit Interface Converter speci-
fication Rev. 5.4.
Electrostatic Discharge (ESD)
There are two design cases in which immunity to ESD
damage is important.
The first 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 floor mats in ESD controlled
areas.
Note: HFBR-5601 is non-compliant for Tx fault timing.
2