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1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
Specifications
Brand Name :
GEZHI or OEM
Model Number :
GSC-12xx-12C(D)
Certification :
CE/FCC/RoHS/TUV/UL
Place of Origin :
China
MOQ :
1pcs
Price :
Get Latest Price
Payment Terms :
T/T, L/C
Supply Ability :
60,000pcs per month
Delivery Time :
1~4 working days after payment
Packaging Details :
1. Neutral Package 10 or 20 pcs/Plastic Tray. 2. According to Customer's request.
Product name :
CWDM SFP Optical Transceiver
Data rate :
1.25G
Wavelength :
1550nm
Distance :
120KM
Connector :
LC
Certificates :
CE RoHS FCC
Description

1.25Gbps 1550nm 120km CWDM SFP Optical Transceiver GSC-12xx-12C(D) for optical transmission systems

GSC-12xx-12C(D)

1.25Gbps CWDM SFP Optical Transceiver, 120km Reach

Features:

♦ Data-rate of 1.25Gbps operation

♦ 18 CWDM DFB wavelengths laser and APD photodetector for 80km transmission

♦ Compliant with SFP MSA and SFF-8472 with duplex LC receptacle

♦ Digital Diagnostic Monitoring: Internal Calibration or External Calibration

♦ Compatible with SONET OC-24-LR-1

♦ Compatible with RoHS

♦ +3.3V single power supply

♦ Operating case temperature range of 0°C to +70°C(Commercial)

Applications:

♦ Gigabit Ethernet

♦ Fiber Channel

♦ Switch to Switch interface

♦ Switched backplane applications

♦ Router/Server interface

♦ Other optical transmission systems

Description:

The SFP transceivers are high performance, cost effective modules supporting data-rate of 1.25Gbps and 120km transmission distance with SMF.
The transceiver consists of three sections: an uncooled CWDM DFB laser transmitter, an APD photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.

1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems

Absolute Maximum Ratings

Table 1 - Absolute Maximum Ratings

Parameter Symbol Min Max Unit
Supply Voltage Vcc -0.5 4.5 V
Storage Temperature Ts -40 +85 °C
Operating Humidity - 5 85 %

Recommended Operating Conditions

Table 2 - Recommended Operating Conditions

Parameter Symbol Min Typical Max Unit
Operating Case Temperature Standard Tc 0 +70 °C
Power Supply Voltage Vcc 3.13 3.3 3.47 V
Power Supply Current Icc 300 mA
Data Rate 1.25 Gbps

GSC-12xx-12C(D)

See table3 below for “xx” values

Table3 -λC Wavelength Guide

λC Wavelength Guide
Code λC Unit Code λC Unit
45 1450 nm 55 1550 nm
47 1470 nm 57 1570 nm
49 1490 nm 59 1590 nm
51 1510 nm 61 1610 nm
53 1530 nm

Optical and Electrical Characteristics

GSC-12xx-12C(D):(CWDM and APD, 120km Reach)

Table 4 - Optical and Electrical Characteristics

Parameter Symbol Min Typical Max Unit Notes
Transmitter
Centre Wavelength λc λc-6.5 λc λc+6.5 nm
Spectral Width (-20dB) ∆λ 1 nm
Side Mode Suppression Ratio SMSR 30 dB
Average Output Power Pout 0 5 dBm 1
Extinction Ratio ER 9 dB
Optical Rise/Fall Time (20%~80%) tr/tf 0.26 ns
Data Input Swing Differential VIN 400 1800 mV 2
Input Differential Impedance ZIN 90 100 110 Ω
TX Disable Disable 2.0 Vcc V
Enable 0 0.8 V
TX Fault Fault 2.0 Vcc V
Normal 0 0.8 V
Receiver
Receiver Sensitivity -31 dBm 3
Receiver Overload -9 dBm 3
LOS De-Assert LOSD -31 dBm
LOS Assert LOSA -35 dBm
LOS Hysteresis 1 4 dB
Data Output Swing Differential Vout 370 1800 mV 4

LOS

 High 2.0 Vcc V
Low 0.8 V

Notes:

1. The optical power is launched into SMF.

2. PECL input, internally AC-coupled and terminated.

3. Internally AC-coupled.

Timing and Electrical

Table 5 - Timing and Electrical

Parameter Symbol Min Typical Max Unit
Tx Disable Negate Time t_on 1 ms
Tx Disable Assert Time t_off 10 µs
Time To Initialize, including Reset of Tx Fault t_init 300 ms
Tx Fault Assert Time t_fault 100 µs
Tx Disable To Reset t_reset 10 µs
LOS Assert Time t_loss_on 100 µs
LOS De-assert Time t_loss_off 100 µs
Serial ID Clock Rate f_serial_clock 400 KHz
MOD_DEF (0:2)-High VH 2 Vcc V
MOD_DEF (0:2)-Low VL 0.8 V

Diagnostics

Table 5 – Diagnostics Specification

Parameter Range Unit Accuracy Calibration
Temperature 0 to +70 °C ±3°C Internal / External
Voltage 3.0 to 3.6 V ±3% Internal / External
Bias Current 0 to 100 mA ±10% Internal / External
TX Power 0 to +5 dBm ±3dB Internal / External
RX Power -30 to -9 dBm ±3dB Internal / External

Mechanical Dimensions

1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems

Ordering Information::

Part Number Product Description
GSC-12xx-12C CWDM 1270nm~1610nm, 1.25Gbps, 120km, 0ºC ~ +70ºC
GSC-12xx-12CD CWDM 1270nm~1610nm, 1.25Gbps, 120km, 0ºC ~ +70ºC, With Digital Diagnostic Monitoring
Product tags

v number of optical fiber

,

fiber optic converter rs485

,

rs485 fiber optic converter
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1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems

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Product Detail
Brand Name :
GEZHI or OEM
Model Number :
GSC-12xx-12C(D)
Certification :
CE/FCC/RoHS/TUV/UL
Place of Origin :
China
MOQ :
1pcs
Price :
Get Latest Price
Contact Supplier
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems
1.25Gbps 1550nm 120km CWDM SFP Fiber Module GSC-12xx-12C(D) for optical transmission systems

Gezhi Photonics Co.,Ltd

Active Member
10 Years
guangdong, shenzhen
Since 2011
Business Type :
Manufacturer
Main Products :
CWDM Mux Demux, DWDM Mux Demux, Optical Switches
Total Annual :
18 Million-20 Million
Employee Number :
200~260
Certification Level :
Active Member
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