HFBR-0555 Avago Technologies US Inc., HFBR-0555 Datasheet - Page 5

• Manufacturer Part Number: HFBR-0555
• Description: Fiber Optics, Evaluation Kit
• Manufacturer: Avago Technologies US Inc.

Specifications of HFBR-0555

• Silicon Core Number: HFBR-5905/5905A
• Features: Test Fixture (Footprint Compatible W/ All Multi-Mode 155 Megabit ATM Small Form Factor Transceivers)
• Tool / Board Applications: Fiber Optic Transceivers
• Main Purpose: Interface, Fiber Optics
• Embedded: No
• Utilized Ic / Part: HFBR-5900 Family
• Primary Attributes: ATM Multimode Transceivers, 155Mbit
• Secondary Attributes: SONET OC-3/SDH STM-1
• Description/function: Fiber Optic Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: HFCT-5903E
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Application Information
The Applications Engineering group is available to assist
you with the technical understanding and design trade-
offs associated with these transceivers. You can contact
them through your Avago Technologies sales
representative.
The following information is provided to answer some
of the most common questions about the use of these
parts.
Transceiver Optical Power Budget versus Link Length
Optical Power Budget (OPB) is the available optical
power for a fiber optic link to accommodate fiber cable
losses plus losses due to in-line connectors, splices,
optical switches, and to provide margin for link aging
and unplanned losses due to cable plant
reconfiguration or repair.
Figure 4 illustrates the predicted OPB associated with
the transceiver specified in this data sheet at the
Beginning of Life (BOL). These curves represent the
attenuation and chromatic plus modal dispersion losses
associated with the 62.5/125 µm and 50/125 µm fiber
cables only. The area under the curves represents the
remaining OPB at any link length, which is available for
overcoming non-fiber cable related losses.
Figure 4. Typical Optical Power Budget at
BOL versus Fiber Optic Cable Length.
5
12
10
8
6
4
2
0
0.
3
0.5
FIBER OPTIC CABLE LENGTH (km)
HFBR-5905, 62.5/125 µm
1.0
HFBR-5905
50/125 µm
1.5
2.0
2.5
Avago Technologies LED technology has produced
1300 nm LED devices with lower aging characteristics
than normally associated with these technologies in
the industry. The industry convention is 1.5 dB aging
for 1300 nm LEDs. The 1300 nm Avago Technologies
LEDs are specified to experience less than 1 dB of aging
over normal commercial equipment mission life
periods. Contact your Avago Technologies sales repre-
sentative for additional details.
Figure 4 was generated for the 1300 nm transceivers
with a Avago Technologies fiber optic link model
containing the current industry conventions for fiber
cable specifications and the draft ANSI T1E1.2. These
optical parameters are reflected in the guaranteed
performance of the transceiver specifications in this
data sheet. This same model has been used extensively
in the ANSI and IEEE committees, including the ANSI
T1E1.2 committee, to establish the optical performance
requirements for various fiber optic interface standards.
The cable parameters used come from the ISO/IEC JTC1/
SC 25/WG3 Generic Cabling for Customer Premises per
DIS 11801 document and the EIA/TIA-568-A
Commercial Building Telecommunications Cabling
Standard per SP-2840.