SFP 1.25G Tx1550/Rx1490 80Km LC Transceiver

Gearlink’s GCS7L0C54 SFP transceiver is compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The china optical transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1490nm DFB laser (the 1550nm DFB laser), and the PIN/TIA. The module data link up to 80km in 9/125um Single-mode fiber.

This transceiver meets the Small Form Pluggable (SFP) industry-standard package utilizing an integral LC-Bi-directional optical and bidi multimode sfp interface connector. An enhanced Digital Diagnostic Monitoring Interface compliant with SFF-8472 has been incorporated into the transceiver. It allows real-time access to the transceiver operating parameters such as fiber transceiver temperature, laser bias current, transmitted optical power, received optical power, and transceiver supply voltage by reading a built-in memory with an I²C interface.

The optical output can be disabled by an LVTTL logic high-level input of Tx Disable, and the system also can disable the module via I²C. Tx Fault is provided to indicate the degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of the receiver or the link status with the partner. The system can also get the LOS (or Link)/Disable/Fault information via I²C register access.

Compatibility of SFP 1.25G Tx1550/Rx1490 80Km LC Transceiver
GLC-BX80-D-I 1000BASE-BX80-U-SMF  TX:1550nm/RX:1490nm 80km

Technical Specification Of SFP 1.25G Tx1550/Rx1490 80Km LC Transceiver

General Specifications
Parameter Symbol Min Typ. Max Unit
Bit Rate BR 1.25 Gb/sec
Max.Supported Link Length Max 80 km

Absolute Maximum Ratings
Parameter Symbol Min Typ. Max Unit Ref.
Storage Temperature TS -40 85 ºC
Storage Ambient Humidity HA 5 95 %
Power Supply Voltage VCC -0.5 4 V
Signal Input Voltage -0.3 Vcc+0.3 V
Receiver Damage Threshold 3 dBm
Lead Soldering Temperature/Time Told 260/10 ºC/sec Note 1
Lead Soldering Temperature/Time Told 360/10 ºC/sec Note 2