Limitations for Some Optical Devices

Temperature Limitations

In most circumstances, the LRM/MACsec Adapter can operate at temperatures up to 45°C (113°F). However, the maximum operating temperature is 40°C (104°F) when the adapter is used with any of the following optical transceivers:
  • 10Gb ER SMF (part no. 10309)

  • 10Gb ZR SMF (part no. 10310)

  • 10Gb Tunable DWDM ZR (part no. 10325)

  • 1000BASE-BX-U bidirectional SFP 120 km (part no. MGBIC-BX120-U)

  • 1000BASE-BX-D bidirectional SFP 120 km (part no. MGBIC-BX120-D)

You can find a complete listing of cables and optical transceivers that are compatible with the LRM/MACsec Adapter in the Extreme Hardware/Software Compatibility and Recommendation Matrices.

Power Limitations

When the host switch is an X590 or X690, and when both ports on the LRM/MACsec Adapter are used with the optical transceivers listed in Temperature Limitations, ensure that you are using the USB (micro-B) cable to supply auxiliary power. The host switch, by itself, will not provide sufficient power for the transceivers.