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Cisco Compatible Ethernet Optical Transceiver , DDM SFP Transceiver
Description:
Juhua’s SFP-B31/49S-G60 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser (the 1490nm DFB laser) and the PIN photo-detector .The module data link up to 60km in 9/125um single mode fiber. The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.
Features:
▪ Up to 1.25Gb/s data links
▪ FP laser transmitter for SFP-B31S-G60
DFB laser transmitter for SFP-B49S-G60
▪ PIN Photo-detector
▪ Up to 60km on 9/125µm SMF
▪ Hot-pluggable SFP footprint
▪ BiDi SC/UPC type pluggable optical interface
▪ Low power dissipation
▪ Metal enclosure, for lower EMI
▪ RoHS compliant and lead-free
▪ Support Digital Diagnostic Monitoring interface
▪ Single +3.3V power supply
▪ Compliant with SFF-8472
▪ Case operating temperature
Commercial: 0°C to +70°C
Extended: -10°C to +80°C
Industrial: -40°C to +85°C
Applications:
▪ Switch to Switch Interface
▪ Fast Ethernet
▪ Switched Backplane Applications
▪ Router/Server Interface
▪ Other Optical Links
PIN Description:
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS<0.8V
3. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. MOD _DEF (0) pulls line low to indicate module is plugged in.
4. This is an optional input used to control the receiver bandwidth for compatibility with multiple data rates (most likely Fiber Channel 1x and 2x Rates).If implemented, the input will be internally pulled down with > 30kΩ resistor. The input states are:
▪ Low (0 – 0.8V): Reduced Bandwidth
▪ (>0.8, < 2.0V): Undefined
▪ High (2.0 – 3.465V): Full Bandwidth
▪ Open: Reduced Bandwidth
5. LOS is open collector output should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
Order Information:
Part Number | Data Rate | Media | Wavelength | Distance | Temperature |
SFP-B31/49S-G60 | 1.25Gbps | Single-mode Fiber | 1310/1490(1490/1310)nm | 60km | 0-70℃ |