Hello,
I recently bought a Mikrotik CR1009-8G-1S-1S+. I added a Mikrotik S -31DLC20D SFP module to connect my internet uplink. The uplink provider confirmed that the uplink should be working with wavelength 1310 nm, single mode, 1GBit, no auto negotiation.
Unfortunately the webinterface shows "no link". Firmware is 6.33 and I rebooted the device - still no link.
Please note that I do NOT get a value for sfp-rx-power in the webinterface or the following dump. Is that a hint that the fiber is not OK or is that conclusion invalid?
/interface ethernet monitor 9 name: sfp1 status: no-link auto-negotiation: disabled sfp-module-present: yes sfp-rx-lose: yes sfp-tx-fault: no sfp-type: SFP-or-SFP+ sfp-connector-type: LC sfp-link-length-9um: 20000m sfp-link-length-50um: 550m sfp-link-length-62um: 550m sfp-vendor-name: Mikrotik sfp-vendor-part-number: S-31DLC20D sfp-vendor-revision: A0 sfp-vendor-serial: MT50617H2074 sfp-manufacturing-date: 15-06-24 sfp-wavelength: 1310nm sfp-temperature: 50C sfp-supply-voltage: 3.237V sfp-tx-bias-current: 21mA sfp-tx-power: -7.055dBm
Best regards, Andre