How to Change the Air Filter in a Nortel S/DMS Transport Node (OC-12)

Universal Air Filter is the original manufacturer of the filters used in the Nortel S/DMS Transport Node.  Most OEMs recommend replacing air filters every 6 months to ensure proper cooling and equipment performance.  UAF is the only OEM-approved supplier, and our filters are UL 94 certified and NEBS compliant.  

Watch our instructional video here:

How to Replace Filter on the Nortel S/DMS Transport Node

Filter Part Number: AO379322

  1. Unlock the air filter tray from locking clasp by pushing and releasing front face of tray. 
  2. Remove the air filter tray from the shelf unit.    
  3. Lift the retainer lid of filter tray and remove old filter media pad and replace with a new filter.   
  4. Reinsert the air filter tray into the shelf unit locking it back into place.

Our air filtration experts can assist in any cross-referencing needed to ensure the proper filters are ordered. Want to learn more about our full service changeout program or have an inquiry about more equipment in your network? Email us with how we can help at [email protected]