Check Point CPAC-TR-40ER-SSM160-QSFP-C Compatible 40GBASE-ER4 QSFP+ Transceiver (SMF, 1310nm, 40km, LC, DOM).
The 40GBase-ER4 module can handle long distance transmission of data up to 40kms over SMF fiber with duplex LC connectors. It works by converting four 10G input channels to four CWDM optical signals, then multiplexes them into a single 40G channel. On the receiving end of the module, the single 40G input is demultiplexed into four CWDM signals, then transforms them to a four channel electrical data output.
Specifications
| Form
  Factor | QSFP+ | Data
  Rate | 40Gbps | 
| Wavelength | 1310nm
   | Max
  Cable Distance  | 40km
   | 
| Connector | Duplex
  LC | Media | SMF | 
| Transmitter
  Type | DFB
  CWDM | Receiver
  Type | APD | 
| TX
  Power | -2.7~4.5dBm | Receiver
  Sensitivity | <-21.2dBm | 
| Powerbudget | 18.5dB | Receiver
  Overload | -4.5dBm | 
| Power
  Consumption | ≤3.5W | Extinction
  Ratio | >5.5dB | 
| Host
  FEC  | Supported | Bit
  Error Ratio (BER) | 1E-12 | 
| Commercial
  Temperature Range | 0 to
  70°C (32 to 158°F) | Protocols | OTN
  OTU3, 40G Ethernet, SATA/SAS3, MSA Compliant | 

 
				 
                                                                                                                                                         
                                                                                                                                                         
                                                                                                                                                         
                                                                                                                                                         
                                                                                                                                                        