SFP 1.25G Tx1310/Rx1550 3Km LC Transceiver

Gearlink’s SFP-GE-BX SFP transceiver is 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 1550nm FP laser), and the PIN/TIA. The module
data link up to 3km in 9/125um Single-mode fiber.

This sfp+ bidi transceiver meets the Small Form Pluggable (SFP) industry-
standard package utilizing an integral LC-Bi-directional optical 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 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.

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Compatibility of SFP 155M Tx1550/Rx1310 40Km LC Transceiver
Cisco
GLC-BX-U 1000BASE-BX3-U SFP BIDI 1310nm-TX/1550nm-RX 3km

Technical Specification Of SFP 1.25G Tx1310/Rx1550 3Km LC Transceiver

General Specifications
Parameter Symbol Min Typ. Max Unit
Bit Rate BR 1.25 Gb/s etc
Max.Supported Link Length Max 3 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

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