Model type | SFP-155M-BIDI-120KM | Brand | HTF |
Encapsulation | SFP | Data Rate | 155M |
Wavelength | 1550nm-TX/1490nm-RX 1490nm-TX/1550nm-RX | Reach | 120KM |
Cable Type | SMF（9/125µm） | Interface | BIDI LC optical connector |
Tx power | -2~3dBm | Rx Sens | <-34dBm |
Protocols | SFF-8472 MSA compliant &SFF-8431;MSA Compliant | Features | Hot-pluggable SFP footprint； Low power dissipation； Metal enclosure, for lower EMI； RoHS compliant and lead-free； Support Digital Diagnostic Monitoring interface； Single +3.3V power supply |
Commercial Temperature Range | Commercial: 0 ~ +70oC Extended: -10 ~ +80oC Industrial: -40 ~ +85oC | ||
Optical Components | 1550nm DFB laser transmitter and PIN photo-detector |
Applications
◎Switch to Switch Interface
◎Fast Ethernet
◎Switched Backplane Applications
◎Router/Server Interface
◎Other Optical Links
How to test the optical power of optical module?
The general tools have optical power meter and optical fiber attenuator. The test steps are as follows:
(1). The power meter is used to measure the optical output power of the optical fiber transmitter. Industry standards define the optical input power of specific network standards for transmitters and receivers. The receiver and transmitter shall be matched, and the optical output power of the transmitter shall be within the specified range;
(2). Connect the transmitter to the receiver, check whether it can work properly under the maximum optical input power provided by the transmitter, and then test the receiver with the minimum optical input power that can be received by the receiver to see whether the receiver can still provide the best performance;
(3). Calculate the attenuation level required for the test. Calculation method: if the optical output power of the transmitter is -15 dBm, and the minimum optical output power of the receiver is -32 dBm, the difference between the two is 17dB. The 17 dB optical fiber attenuator can be used and the receiver can be retested.
FAQ
1、Question: Is it possible to send to Brazil?
Answer: Yes, of course.Our partners are all over the world
2、Question: Does this work with 50/125 cable with LC connectors?
Answer: Yes
3、Question：Will this work with 155M sfp ports in Cisco switches?
Answer：Yes. As long as the rate of both ends are consistent.
4、Question：Which would I choose, SFP+ or 10GBase-T？Why?
Answer4：SFP+ is the most cost effective, dedicated fiber is the best for air flow in the DC, RJ45 is cheap but bulky.
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