afct-5715z Avago Technologies, afct-5715z Datasheet - Page 2

• Manufacturer Part Number: afct-5715z
• Description: Families Of Single-mode Small Form Factor Pluggable Sfp Optical Transceivers With Optional Dmi For Gigabit Ethernet 1.25 Gbd
• Manufacturer: Avago Technologies

Overview
The AFCT-571 Z family is compliant with both IEEE
802.3Z (1000BASE-LX) and the SFP Multi-Source
Agreement (MSA) specification. These transceivers are
intended for premise, public and access networking
applications. They are qualified in accordance with GR-
468-CORE, and transmit data over single-mode (SM) fiber
for a link distance of 10 km, in excess of the standard.
The AFCT-5715Z family of optical transceivers adds
digital diagnostic monitoring to standard SFP
functionality, enabling fault isolation, components
monitoring and failure prediction capabilities.
General Features
The AFCT-571 Z is compliant to 1 GbE specifications.
This includes specifications for the signal coding, optical
fiber and connector types, optical and electrical
transmitter characteristics, optical and electrical receiver
characteristics, jitter characteristics, and compliance
testing methodology for the aforementioned.
This transceiver is capable of implementing both Single
Mode (SM) and Multimode (MM) optical fiber
applications in that order of precedence in the event of
conflicting specifications. In addition, the SM link type
exceeds the 2 m to 5 km 1000BASE-LX specification by
achieving compliance over 2 m to 10 km. The MM link
type is expected to meet the 62.5 µm MMF specification
when used with an “offset launch” fiber.
Figure 1. Transceiver Functional Diagram
2
Optical Interface
Light from Fiber
Light to Fiber
text
Receiver
Transmitter
Photo-Detector
Laser
Controller & Memory
Amplification
Quantization
SFP MSA Compliance
The product package is compliant with the SFP MSA
with the LC connector option. The SFP MSA includes
specifications for mechanical packaging and
performance as well as dc, ac and control signal timing
and performance.
The power supply is 3.3 V dc.
The High Speed I/O (HSIO) signal interface is a Low
Voltage Differential type. It is ac coupled and terminated
internally to the module. The internal termination is a
100 Ohm differential load.
Installation
The AFCT-571 Z can be installed in or removed from
any MSA-compliant Pluggable Small Form Factor (SFP)
port regardless of whether the host equipment is
operating or not. The module is simply inserted,
electrical-interface first, under finger-pressure.
Controlled hot-plugging is ensured by 3-stage pin
sequencing at the electrical interface. This printed
circuit board card-edge connector is depicted in Figure
2.
As the module is inserted, first contact is made by the
housing ground shield, discharging any potentially
component-damaging static electricity. Ground pins
engage next and are followed by Tx and Rx power
supplies. Finally, signal lines are connected. Pin
functions and sequencing are listed in Table 2.
&
Laser Driver &
Safety Circuit
Electrical Interface
MOD-DEF2 (SDA)
MOD-DEF1 (SCL)
TD+ (Transmit Data)
TD- (Transmit Data)
TX_FAULT
MOD-DEF0
TX_DISABLE
RD+ (Receive Data)
RD- (Receive Data)
Rx Loss Of Signal