Description
1550nm 40km 1.25G SFP Optical Transceivers (DT-SFP-1550-1.25G-40KM),To Be Used On a Series of Switches, Routers, Servers, Network InterfaceCard Etc,Package:SFP,Data Rate:1.25G,Wavelength:1550nm,Reach:40km,TX:DFB,RX:PIN,TX Power:-9~-3dBm,RX Sensitivity:-20dBm, Compatible With the Brand:Cisco,Juniper,Brocade,Arista,Mellanox,HPE,Dell,Dell Force10,Huawei...Etc is Optional.
Features
⊙Hot-pluggable
⊙RoHS Compliant
⊙Up to 1.25Gbps data rate
⊙Single +3.3V power supply
⊙Operating temperature range:
⊙Commercial: 0C~+70C
⊙Industrial: -40C~+85C
⊙Up to 40km on 9/ 125µm SMF
⊙Metal enclosure, for lower EMI
⊙International Class1 laser safety certified
⊙DFB laser transmitter and PIN photo-detector
⊙Duplex LC receptacle optical interface compliant
⊙DDMI function available with internally calibrated mode
Application
⊙Point-to-Point networking ²
⊙Other Optical Links ²
⊙Gigabit Ethern
Standard
⊙Router/Server Interface
⊙Compliant with SFF-8472 v11.0
⊙Switched Backplane Applications
| Absolute Maximum Ratings |
| Parameter |
Symbol |
Min |
Max |
Unit |
| Storage temperature |
TS |
-40 |
85 |
C |
| Power Supply Voltage |
Vcc |
-0.5 |
+4 |
V |
| Relative Humidity |
RH |
5 |
95 |
% |
| Signal Input Voltage |
|
-0.3 |
Vcc+0.3 |
V |
| Receiver Damage Threshold |
|
+5 |
|
dBm |
| Recommended Operating Conditions |
| Operating Case Temperature (Commercial) |
Tc |
0 |
|
70 |
C |
| Operating Case Temperature (Industrial) |
|
-40 |
|
85 |
|
| Power Supply Voltage |
Vcc |
3. 13 |
3.3 |
3.47 |
V |
| Ambient Humidity |
HA |
5 |
|
70 |
% |
| Supply Current |
Icc |
|
|
280 |
A |
| Data Rate |
|
- |
1.25 |
- |
Gbps |
| Fiber Length 9/ 125μm core SMF |
|
- |
40 |
|
km |
| Electrical Characteristics |
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Total Supply Current |
ICC |
|
|
A(TX) |
mA |
A (TX) + B (RX) = 300mA |
| Transmitter Disable Input-High |
VDISH |
2 |
|
Vcc+0.3 |
V |
|
| Transmitter Disable Input-Low |
VDISL |
0 |
|
0.8 |
V |
|
| Transmitter Fault Input-High |
VDISL |
2 |
|
Vcc+0.3 |
V |
|
| Transmitter Fault Input-Low |
VTxFH |
0 |
|
0.8 |
V |
|
| Total Supply Current |
|
|
|
B(RX) |
mA |
A (TX) + B (RX) = 300mA |
| Loss of Signal (LOS) |
Voh |
2 |
|
Vcc+0.3 |
V |
|
| |
Vol |
0 |
|
0.8 |
V |
|
| Optical transmitter Characteristics |
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Average Output Power |
Pout |
-9 |
|
-3 |
dBm |
1 |
| Operating Wavelength Range |
λc |
1530 |
1550 |
1570 |
nm |
|
| Spectrum Bandwidth(RMS) |
σ |
|
|
1 |
nm |
|
| Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
| Extinction Ratio |
ER |
9 |
|
|
dB |
2 |
| Differential Line Input Impedance |
RIN |
90 |
100 |
110 |
Ohm |
|
| Jitter P-P |
tJ |
|
|
0.1 |
UI |
|
| Optical Tx Output disable |
Pdis |
|
|
-45 |
dBm |
|
| Output Eye Diagram |
Complies with IEEE802.3 z (class 1 laser safety) |
| Optical receiver Characteristics |
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Receiver Sensitivity |
S |
|
|
-20 |
dBm |
4 |
| Wavelength Range |
λc |
1270 |
|
1610 |
nm |
|
| Receiver Reflectance |
|
|
|
- 12 |
dB |
|
| Input Saturation Power (Overload) |
Psat |
-3 |
|
|
dBm |
4 |
| LOS |
Optical De-assert |
Pd |
|
|
-25 |
dBm |
4 |
| |
Optical Assert |
Pa |
-38 |
|
|
|
|
| LOS hysteresis |
|
0.5 |
2 |
6 |
dB |
5 |
Q1:What's the delivery time?
Re:The lead time is 15-20 days after order confirmed.
Q2:Can you send me a free sample?
Re: We are willing to send you free sample, if you would like to pay the shipping costs.
Q3:What's your payment terms?
Re: 30% in advance, and 70% before shipment.
Q4:What's the payent method?
Re: We accpet T/T, Western Union, Paypal.
Q5:How to ship the items to me?
Re: Courier (DHL , TNT , FEDEX , UPS , EMS ) , By Air, By
Description 
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