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參數資料
| 型號： | HFCT-5218M |
| 英文描述： | 622 Mb/s Single Mode Laser Transceiver for ATM, SONET OC-12/SDH STM-4 (L4.1)(應用于ATM, SONET OC-12/SDH STM-4 (L4.1)的622 Mb/s單模式激光收發器) |
| 中文描述： | 622 Mb / s的對ATM，SONET的OC-12/SDH的STM - 4（L4.1）（應用于自動取款機，SONET的OC-12/SDH的STM - 4（L4.1）的622桶/單模激光收發器擰單模式激光收發器） |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 493K |
| 代理商： | HFCT-5218M |
622 Mb/s Single Mode Laser Transceiver
for ATM, SONET OC-12/SDH STM-4 (L4.1)
Technical Data
HFCT-5218M Family
Features
SC Duplex Single Mode
Transceiver
Link Distances up to 40 km
with 9/125 μm SMF
Fully Class 1 CDRH/IEC
825 Compliant
Long Reach SONET OC-12/
SDH STM-4 (L4.1)
Compliant
Single +5 V Power Supply
Operation and PECL Logic
Interfaces
Industry Standard Multi-
sourced 1 x 9 Mezzanine
Package Style
Wave Solder and Aqueous
Wash Process Compatible
Interchangeable with LED
Multisourced 1 x 9
Transceivers
Applications
SONET/SDH Equipment
Interconnect,
STS-12/SDH STM-4 Rate
Long Reach (Up to 40 km)
ATM Links
Description
The HFCT-5218 transceiver is a
high performance, cost effective
module for serial optical data
communications applications
specified for a signal rate of
622 MBd. It is designed to
provide a SONET/SDH compliant
link for 622 Mb/s long reach
links.
This module is designed for
single mode fiber and operates at
a nominal wavelength of 1300 nm.
It incorporates high performance,
reliable, long wavelength optical
devices and proven circuit
technology to give long life and
consistent service.
The transmitter section uses an
advanced Distributed Feedback
(DFB) laser with full IEC 825 and
CDRH Class 1 eye safety.
A pseudo-ECL logic interface
simplifies interface to external
circuitry.
Functional Description
Receiver Section
Design
The receiver section contains an
InGaAs/InP photodetector and a
preamplifier within the
receptacle, coupled to a postamp/
decision circuit on a separate
circuit board.
The postamplifier is ac coupled to
the preamplifier as illustrated in
Figure 1. The coupling capacitor
is large enough to pass the
SONET/SDH test pattern at
622 Mbd without significant
distortion or performance
penalty. If a lower signal rate, or
a code which has significantly
more low frequency content is
used, sensitivity, jitter and pulse
distortion could be degraded.
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