DDM SFP Module 155M Optical Transceiver

Description

The 155M DDM SFP Module offers Digital Diagnostic Monitoring (DDM) for real-time performance monitoring and troubleshooting. Featuring a hot-pluggable SFP footprint, this module supports dual data rates of up to 155Mbps, making it ideal for Fast Ethernet, SDH/STM-1, SONET/OC-3, and fiber channel operations. DDM SFP Module with a 1310nm Fabry-Perot laser transmitter and a long 20km transmission range over single-mode fiber (SMF), this transceiver is designed to meet your needs for high-speed, long-distance connectivity.Its Automatic Gain Control (AGC) ensures optimal signal quality, while its low power dissipation (below 700mW) and metal enclosure reduce electromagnetic interference (EMI) for stable operation. Certified with Class 1 laser safety standards (FDA/IEC60825-1), this transceiver offers both security and efficiency in demanding network environments.

DDM SFP Module FEATURES:

Advanced Diagnostic Capabilities

Real-Time Digital Diagnostic Monitoring (DDM): Continuously track operational parameters including temperature, supply voltage, laser bias current, transmitted optical power, and received optical power for predictive maintenance

Dual Calibration Options: Supports both internal and external calibration methods for precision measurement accuracy

Loss of Signal (LOS) Detection: Integrated monitoring with LVTTL logic output (Logic 0 = normal operation, Logic 1 = no signal detected)

Superior Optical Performance

Extended Reach Transmission: Reliable 20km transmission distance on 9/125μm single-mode fiber (SMF) with excellent signal integrity

Low Jitter Operation: Engineered for minimal signal distortion with DJ-free data input compatibility

Automatic Gain Control (AGC): Self-regulating function maintains optimal signal strength across varying conditions

1310nm Fabry-Perot Laser: Cost-effective optical transmitter technology ideal for intermediate distance applications

Robust Design and Compliance

Hot-Pluggable SFP Footprint: Enables installation and replacement without powering down network equipment

Full Standards Compliance: Certified compatible with IEEE 802.3, IEEE 802.3u, SFP Multi-Source Agreement (MSA), and SFF-8472 specifications

Enhanced EMI Protection: Metal enclosure significantly reduces electromagnetic interference

Wide Operating Range: Functions reliably in temperatures from -40°C to 85°C with 3.0V to 3.6V power supply

Network Compatibility and Versatility

Multi-Vendor Interoperability: Compatible with Cisco, Huawei, and other major networking equipment brands

Dual Data Rate Support: Handles 155Mbps for both Ethernet and fiber channel applications

Simplified Fiber Channel Operation: No Rate Select input required for Fiber Channel 1x/2x operation

Broad Application Support: Ideal for Fast Ethernet, SDH/STM-1, SONET/OC-3, switch interconnections, backplane applications, and various optical transmission systems

Operational Efficiency

Low Power Consumption: Typically operates below 700mW for energy-efficient network expansion

Single Voltage Requirement: Simplified power design with 3.3V supply only

Class 1 Laser Safety: FDA/IEC60825-1 compliant for secure installation and operation

Durable Connector System: Industry-standard duplex LC interface for reliable fiber connections

DDM SFP Module APPLICATIONS:

l       Fast Ethernet

l       SDH/STM-1,SONET/OC-3

l       Switch to Switch interface

l       Switched backplane applications

l       Router/Server interface

l       Other optical transmission systems

Absolute Maximum Ratings

Electrical Characteristics (TOP = -40 to 85 ℃, VCC = 3.00 to 3.60 Volts)

DDM SFP module Notes:

1. Non condensing.
2. AC coupled.
3. Or open circuit.
4. Into 100 ohm differential termination.
5. 20 – 80 %
6. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
7. All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the power supply filtering network shown on page 23 of the Small Form-factor Pluggable (SFP) Transceiver MultiSource Agreement (MSA), September 14, 2000.
8. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ andDDJ.

Optical Characteristics (TOP = 0 to 70℃, VCC = 3.00 to 3.60 Volts)

Environmental Specifications