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参数资料
| 型号： | AFCT-5710ALZ |
| 元件分类： | 光收发 |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 1270-1355nm, 1250Mbps(Tx), PANEL MOUNT, LC CONNECTOR |
| 封装： | ROHS COMPLIANT |
| 文件页数： | 14/19页 |
| 文件大小： | 330K |
| 代理商： | AFCT-5710ALZ |
4
Figure 4. MSA required power supply filter
V
CCT
0.1 F
10 F
1 H
0.1 F
10 F
3.3 V
SFP MODULE
V
CCR
HOST BOARD
TX_FAULT
A laser fault or a low VCC condition will activate the
transmitter fault signal, TX_FAULT, and disable the
laser. This signal is an open collector output (pull-up
required on the host board); A low signal indicates
normal laser operation and a high signal indicates a
fault. The TX_FAULT will be latched high when a laser
fault occurs and is cleared by toggling the TX_DISABLE
input or power cycling the transceiver. The TX_FAULT
is not latched for Low VCC. The transmitter fault
condition can also be monitored via the two-wire serial
interface (address A2h, byte 110, bit 2).
Eye Safety Circuit
Under normal operating conditions, the laser power
will be maintained below the eye-safety limit. If the
eye safety limit is exceeded at any time, a laser fault
will occur and the TX_FAULT output will be activated.
Receiver Section
The receiver section for the AFCT-571xZ contains an
InGaAs/InP photo detector and a preamplifier mounted
in an optical subassembly. This optical subassembly is
coupled to a post amplifier/decision circuit on a circuit
board. The design of the optical subassembly provides
better than 12 dB Optical Return Loss (ORL).
Connection to the receiver is provided via a LC optical
connector.
RX_LOS
The receiver section contains a loss of signal (RX_LOS)
circuit to indicate when the optical input signal power
is insufficient for Gigabit Ethernet compliance. A high
signal indicates loss of modulated signal, indicating
link failure such as a broken fiber or a failed transmitter.
RX_LOS can be also be monitored via the two-wire
serial (address A2h, byte 110, bit 1).
Functional Data I/O
Avago’s AFCT-571xZ transceiver is designed to accept
industry standard differential signals. The transceiver
provides an AC-coupled, internally terminated data
interface. Bias resistors and coupling capacitors have
been included within the module to reduce the number
of components required on the customer’s board.
Figure 2 illustrates the recommended interface circuit.
Digital Diagnostic Interface and Serial
Identification
The AFCT-571xZ family complies with the SFF-8074i
specification, which defines the module’s serial
identification protocol to use the 2-wire serial CMOS
EEPROM protocol of the ATMEL AT24C01A or similar.
Standard SFP EEPROM bytes 0-255 are addressed per
SFF-8074i at memory address 0xA0 (A0h).
As an enhancement to the conventional SFP interface
defined in SFF-8074i, the AFCT-5715Z is also compliant
to SFF-8472 (the digital diagnostic interface for SFP).
This enhancement adds digital diagnostic monitoring
to standard SFP functionality, enabling failure
prediction, fault isolation, and component monitoring
capabilities.
Using the 2-wire serial interface, the AFCT-5715Z
provides real time access to transceiver internal supply
voltage and temperature, transmitter output power,
laser bias current and receiver average input power,
allowing a host to predict system compliance issues.
These five parameters are internally calibrated, per the
MSA. New digital diagnostic information is accessed
per SFF-8472 using EEPROM bytes 0-255 at memory
address 0xA2 (A2h).
The digital diagnostic interface also adds the ability to
disable the transmitter (TX_DISABLE), monitor for
Transmitter Faults (TX_FAULT) and monitor for Receiver
Loss of Signal (RX_LOS).
Contents of the MSA-compliant serial ID memory are
shown in Tables 10 through 14. The SFF-8074i and SFF-
8472 specifications are available from the SFF
Committee at http://www.sffcommittee.org.
Predictive Failure Identification
The diagnostic information allows the host system to
identify potential link problems. Once identified, a fail-
over technique can be used to isolate and replace
suspect devices before system uptime is impacted.
相关PDF资料 |
PDF描述 |
|---|---|
| AFCT-5710APZ | FIBER OPTIC TRANSCEIVER, 1270-1355nm, 1250Mbps(Tx), PANEL MOUNT, LC CONNECTOR |
| AFCT-5710LZ | FIBER OPTIC TRANSCEIVER, 1270-1355nm, 1250Mbps(Tx), PANEL MOUNT, LC CONNECTOR |
| AFCT-5710PZ | FIBER OPTIC TRANSCEIVER, 1270-1355nm, 1250Mbps(Tx), PANEL MOUNT, LC CONNECTOR |
| AISC-1812H-8R2-M-T | 1 ELEMENT, 8.2 uH, GENERAL PURPOSE INDUCTOR, SMD |
| AISC-1812H-821-J-T | 1 ELEMENT, 820 uH, GENERAL PURPOSE INDUCTOR, SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AFCT-5710APZ | 功能描述:光纤发射器、接收器、收发器 Transceiver RoHS:否 制造商:Omron Electronics 产品:Transmitters 数据速率:3.5 Gbps 波长:850 nm 最大工作温度: 最小工作温度: 封装 / 箱体: 封装: |
| AFCT-5710LZ | 功能描述:光纤发射器、接收器、收发器 Transceiver RoHS:否 制造商:Omron Electronics 产品:Transmitters 数据速率:3.5 Gbps 波长:850 nm 最大工作温度: 最小工作温度: 封装 / 箱体: 封装: |
| AFCT-5710PZ | 功能描述:光纤发射器、接收器、收发器 Transceiver RoHS:否 制造商:Omron Electronics 产品:Transmitters 数据速率:3.5 Gbps 波长:850 nm 最大工作温度: 最小工作温度: 封装 / 箱体: 封装: |
| AFCT-5710Z | 制造商:AVAGO 制造商全称:AVAGO TECHNOLOGIES LIMITED 功能描述:Families of Single-Mode Small Form Factor Pluggable Optical Transceivers with Optional DMI for Gigabit Ethernet |
| AFCT-5710Z_13 | 制造商:AVAGO 制造商全称:AVAGO TECHNOLOGIES LIMITED 功能描述:Families of Single-Mode Small Form Factor Pluggable Optical Transceivers with Optional DMI for Gigabit Ethernet |
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