- Optical Transceiver
-
SFP+
XFP
SFP28
QSFP28
QSFP+
SFP
1 X 9
AOC
RF optical module - Media Converter
-
POE Media converter
10/100M Media Converter
10/100/1000M Gigabit
10G Media Converter
10G OEO - WideTemperature Etherent Switch
-
Unmanaged Switch
Smart Dial Switch
Smart Dial POE Switch
Layer 2 Managed Switch
Layer 2 Managed POE Switch
Layer 3 Managed Switch - Industrial Ethernet Switches
-
Layer 2 RackMounted Managed Ethernet Switch
RackMounted Unmanaged Ethernet Switch
Layer 2 DIN-rail Mounted Managed Ethemet Switch
DIN-rail Mounted Unmanaged Ethemet Switch - Mining switch
- Mining switch
- Electric Power Dedicated Switch
-
Mesh network automation switch
Specified Ethernet Switch For Substation

FEATURE
l 25.78 Gbps serial optical interface
l 1310nm DFB transmitter and PIN PD receiver
l Superior eye performances
l Up to 10km on 9/125 um SMF
l 80nm high sensitivity PIN-TIA receiver
l SFP28 MSA compliant
l Built-in digital diagnostic functions
l Operating case temperature: 0 to +70 °C
l RoHS 6 Compliant
APPLICATIONS
l 25GBASE-LR
l eCPRI , CPRI
l Ethernet Switches
l High-speed Servers
l High-performance Computing Clusters
Outline drawing
TRANSMITTER CHARACTERISTICS
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Ref. |
Center Wavelength |
λ |
λ-6.5 |
λ |
λ+6.5 |
nm |
*1 |
Side-mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
Average Optical Power,25.78Gb/s |
Pavg |
-7.0 |
|
+3.0 |
dBm |
|
Transmitter and Dispersion Penalty |
TDP |
|
|
3 |
dB |
|
Average Launch Power of OFF Transmitter |
Poff |
|
|
-20 |
dBm |
|
Extinction Ratio |
ER |
3.5 |
|
|
dB |
|
Optical Return Loss Tolerance |
|
|
|
20 |
dB |
|
Transmitter Reflectance |
|
|
|
-12 |
dB |
|
*1 :The center wavelength (λ) are 1271nm, 1291nm, 1311 nm and 1331nm
RECEIVER CHARACTERISTICS (T=25°C, unless noted)
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Ref. |
Center Wavelength |
λ |
1260 |
|
1370 |
nm |
|
Damage Threshold |
|
3.5 |
|
|
dBm |
|
Receive Power Overload |
|
|
|
3.5 |
dBm |
|
Receiver Reflectance |
|
|
|
-12 |
dB |
|
Receiver Sensitivity (OMA) @5E-5 BER,KR4 FEC, 25.78 Gb/s |
SOMA |
|
|
-11.3 |
dBm |
|
LOS Assert |
LOSA |
|
|
-17 |
dBm |
|
LOS De-Assert |
LOSD |
-30 |
|
|
dBm |
|
LOS Hysteresis |
|
0.5 |
|
|
dB |
|
For detail, please check the datasheet in "Download".

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WT-SFP28-BU27/31-40L
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WT-SFP28-BD33/27-20L
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WT-SFP28-SR
WT-SFP+25G SR 850