RB2011UAS_RM SFP module compatibility

Hardware MikroTik hardware general
1

I have a RB2011UAS_RM that does not detect a cudy SFP SM100GSA-20 module. Can anyone tell me if there is a way to make it work or what modules are supported please? All packages/firmware was updated - did not help.

I also have RB2011UiAS_RM (nearly same version) with the same cudy SM100GSA-20 module that is detected just fine.

For the one not detected (config reset for the test):

[admin@MikroTik] > /interface ethernet monitor sfp1  
                      name: sfp1
                    status: no-link
          auto-negotiation: done
               advertising: 
  link-partner-advertising: 
               sfp-rx-loss: yes
                  sfp-type: (unknown)
           eeprom-checksum: good
                    eeprom: 0000: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0010: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0020: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0030: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0040: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0050: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0060: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0070: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0080: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            0090: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            00a0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            00b0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            00c0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            00d0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            00e0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                            00f0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
-- [Q quit|D dump|C-z pause]
2

For reference, on the RS2011UiAS-RM where the same module model does work:

[mikroot@MTMain] > /interface ethernet monitor sfp1  
                      name: sfp1
                    status: no-link
          auto-negotiation: done
               advertising: 
  link-partner-advertising: 
        sfp-module-present: yes
               sfp-rx-loss: yes
                  sfp-type: SFP-or-SFP+
        sfp-connector-type: LC
        sfp-link-length-sm: 20km
           sfp-vendor-name: Cudy
    sfp-vendor-part-number: SM100GSA-20
       sfp-vendor-revision: 1.0
         sfp-vendor-serial: 241200156
    sfp-manufacturing-date: 24-03-21
            sfp-wavelength: 1310nm
           sfp-temperature: 50C
        sfp-supply-voltage: 3.307V
       sfp-tx-bias-current: 23mA
              sfp-tx-power: -5.234dBm
              sfp-rx-power: -40dBm
           eeprom-checksum: good
3

Check versions of both RouterOS (system->packages) and RouterBoot (system->routerboard) … I’m willing to bet they are not the same on both devices … and the one which works with module has newer versions installed. “nearly the same” doesn’t count.

4

Thanks for the reply. I just checked again, they are identical - packages all on 6.49.18 (latest) as well as firmware (“Current Firmware 6.49.18”)

What i meant was the devices are nearly identical, the RS2011UiAS-RM includes passive poe out which the RS2011UAS-RM does not (not aware of other differences)

5

Another observation, there is nothing reported in the logs for it either (have also enabled debug logs in case something shows).

Have also opened it up to observe if there is maybe something obvious wrong on the board, as expected, everything looks fine (cant see into the sfp cage/socket but it looks fine too)