Basic Info.
Application
Communication
Transport Package
Paper Box
Product Description
J4848C
1.25Gb/s Short-Wavelength SFP Transceiver
With DDMAPPLICATIONS1.25Gb/s 1000Base-SX Ethernet Links
1x Fiber Channel
High speed I/O for file servers
Switch to Switch interface
Distributed multi-processing
Channel extender, Data storage
PRODUCT FEATURESCompliant with specifications for SFP MSA standard
Compliant with specifications for IEEE-802.3z Gigabit Ethernet Standard
Compliant with specifications for SDH/SONET/ATM standard
Duplex LC Connector
850nm Oxide VCSEL laser transmitter
Differential LVPECL inputs and outputs
TTL signal detect indicator
Up to 1.25Gb/s bi-directional data links
Single Power Supply 3.3V
Hot-Pluggable SFP footprint
Up to 500m on 50/125μm MMF, 300m on 62.5/125μm MMF
Metal enclosure for lower EMI
Extended operation temperature range: 0ºC to +70ºC
The transceiver is a duplex LC connector transceiver, designed for use in 1x FC and Gigabit Ethernet and to provide a IEEE-802.3z compliant link at 1.25Gbps applications. The transceiver are hot-pluggable, the characterization is performed in accordance with Bellcore specification TA-NWT-000983. All of them are housed in a stainless package and the combination produces a component of high reliability.
100% STRICT PERFORMANCE TESTING
Absolute Maximum Ratings
Parameter | Symbol | Minimum | Maximum | Unit |
Storage Temperature | TST | -40 | +85 | OC |
Input Voltage | VIN | -0.5 | 4.0 | V |
Relative Humidity | RH | 0 | 85 | % |
Case Operation Temperature | TOP | -20 | +85 | OC |
Operation Environment
Parameter | Symbol | Minimum | Maximum | Unit |
Supply Voltage | VCC | 3.00 | 3.60 | V |
Ambient Operating Temperature | TA | 0 | +70 | OC |
Electrical Characteristics
Parameter | Symbol | Minimum | Type | Maximum | Unit |
Transmitter Differential Input Volt | ± TX_DAT | 650 | | 2000 | mV p-p |
Supply Current | ICC | -- | 200 | 330 | mA |
Transmit Enable Voltage | VIL | 0 | | 0.8 | V |
Transmit Disable Voltage | VIH | 2.0 | | Vcc | V |
Tx_Fault Output Voltage - Low | VOL | 0 | | 0.8 | V |
Tx_Fault Output Voltage - High | VOH | 2.0 | | Vcc | V |
Receiver Differential Output Volt | ± RX_DAT | 0.4 | | 2000 | mV p-p |
Data output rise time | Tr | -- | 90 | 175 | ps |
Data output fall time | Tf | -- | 90 | 175 | ps |
Rx_LOS Output Voltage- Low | VOL | 0 | | 0.8 | V |
Rx_LOS Output Voltage- High | VOH | 2.0 | | Vcc | V |
Transmitter Optical Characteristics:
(Ambient Operating Temperature Ta=-10°C to +70°C, Vcc = 3.0V to 3.6V)
Parameter | Symbol | Min. | Typical | Max. | Units |
Output Center Wavelength | lce | 830 | 850 | 860 | nm |
Output Spectral width(RMS) | Dl | | 0.5 | | nm |
Average Optical Output Power | Po | -9 | -- | -3 | dBm |
Extinction Ratio | Ext. | 9 | | | dB |
Max. Pout TX_DISABLE Asserted | POff | | | -35 | dBm |
Output Eye Diagram | Compliant with IEEE802.3z |
Optical Rise / Fall time(20%-80%) | tr / tf | | | 0.19 | ns |
Receiver Optical Characteristics:
(Ambient Operating Temperature Ta=-10°C to +70°C, Vcc = 3.0V to 3.6V)
Parameter | Symbol | Min | Typical | Max | unit |
Receiver Sensitivity= 1.0625Gb/s | Pmin | | | -20 | dBm |
Receiver Sensitivity= 1.25Gb/s | Pmin | | | -18 | dBm |
Maximum Input Power | Pmax | -3 | 0 | | dBm |
Signal Detect Thresholds | PH-L | -30 | -25 | | dBm |
PL-H | | -23 | -19 | dBm |
Wavelength | lC | 770 | | 860 | nm |
Timing Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit |
TX_DISABLE Assert Time | t_off | | 3 | 10 | usec |
TX_DISABLE Negate Time | t_on | | 0.5 | 1 | msec |
Time to initialize include reset of TX_FAULT | t_int | | 30 | 300 | msec |
TX_FAULT from fault to assertion | t_fault | | 20 | 100 | usec |
TX_DISBEL time to start reset | t_reset | 10 | | | usec |
Receiver Loss of Signal Assert Time (off to On) | TA,RX_LOS | | | 100 | usec |
Receiver Loss of Signal Assert Time (on to off) | Td,RX_LOS | | | 100 | usec |
General Specifications
Parameter | Symbol | Min | Type | Max | Units | Ref. |
Data Rate | BR | 1062 | | 1250 | Mb/s | |
Fiber length on 9/125μm SMF | L | | | 500 | m | 1000BASE-SX |
Digital Diagnostic Functions (DDM)
Plexda's GLC-SX-MM SFP transceiver support the 2-wire serial communication protocol as defined in ther SFP MSA. It is very closely related to the EEPROM defined in the GBIC standard, with the same electrical specifications.
The standard SFP serial ID provides access to identification information that describes the transceiver's capabilities, standard interfaces, manufacturer, and other information.
Additionally, The SFP transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.
The SFP MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h). the digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged. The interface is identical to, and is thus fully back ward compatible with both the GBIC specification and the FP Multi-source Agreement.
The operating and diagnostics information is monitored and reported by a digital diagnostics transceiver controller (DDTC) inside the transceiver, which is accessed through a 2 -wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the EEPROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def2) is bi-directional for serial data transfer. The host uses DA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.
For more information, please see the SFP MSA documentation.
COMPTIBILITY TEST
FULL COMPATIBLE WITH FOLLOWING NETWORK DEVICES
APPLICATION FOR CISCO WS-C4507R and WS-C3750G SWITCH
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Address:
6/F No. A7 Building, Xiufeng Industrial Town, 2# Xiufeng Rd, Shenzhen, Guangdong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Computer Products, Electrical & Electronics
Management System Certification:
ISO 9001
Company Introduction:
Plexda Technology Co., Ltd is a leading professional fiber optic and data connectivity solution supplier and exporter from China, Hongkong. We focus on producing fiber optic communication networking equipments and devices. With over 10 years experiences in massive production of fiber optic communication products the reliable stabilities of its high quality and excellent performance of its products. Plexda has been continually growing and expanding the product lines to keep up the pace of industry trends.
Plexda′′s ISO9001 certified factory in shenzhen China, with advanced test equipment and facility. All Plexda products are 100% signal analyzing and BER tested and are fully traceable through our ISO9001: 2008 certified quality system, also meet the standards of organizations such as Telcordia-326-CORE, ANSI/TIA/EIA, ISO/IEC 11801 and IEEE.
We are research and development, production, sales and OEM services. Can according to the different needs of customers provide the rate of upto 40Gbps, including 300pins packaging format transponder, XFP, X2, XENPAK, SFP+, SFP, SFF, QSFP, CFP and Cable SFP series fiber transceiver products; 10M/100M/1000M ethernet fiber media converters and 10/100M fiber switch (PoE switch), that include 1FX+7UTP, 1FX+8UTP, 2FX+3UTP and 8FX+8UTP, GPON, EPON, Products are widely used in 10M/100M/1G/10G Ethernet, FTTX, SDH/SONET, network storage, repeater stations, etc. We are based on strong research and development and professional manufacturing capacity, rapid response to customers and ISO9000 quality system certification providing customers with cost-effective products and solutions, and can according to customer needs, providing personalized product design services.