These are the some difference
BMXNRP0201:-
Fiber Converter SM/LC 2CH 100Mb
* Optic fiber type: Single Mode
* Operating Distance: 0...15000 m
* Attenuation: -15...-8 dB (9/125 µm)
* Rise/fall time: 2.5 ns
* Receiver sensitivity: - 31...- 8 dBm
BMXNRP0200:-
Fiber Converter MM/LC 2CH 100Mb
* Optic fiber type: Multi Mode
* Operating Distance: 0...2000 m
* Attenuation: -23.5...-14 dB (50/125 µm)
-20...-14 dB (62.5/125 µm)
* Rise/fall time: 3 ns
* Receiver sensitivity: - 31...- 14 dBm
BMXNRP0201:-
Fiber Converter SM/LC 2CH 100Mb
* Optic fiber type: Single Mode
* Operating Distance: 0...15000 m
* Attenuation: -15...-8 dB (9/125 µm)
* Rise/fall time: 2.5 ns
* Receiver sensitivity: - 31...- 8 dBm
BMXNRP0200:-
Fiber Converter MM/LC 2CH 100Mb
* Optic fiber type: Multi Mode
* Operating Distance: 0...2000 m
* Attenuation: -23.5...-14 dB (50/125 µm)
-20...-14 dB (62.5/125 µm)
* Rise/fall time: 3 ns
* Receiver sensitivity: - 31...- 14 dBm