SFP GLC-SX-MM

[JoshuaEvan]

I got this number below the series of each GLC-SX-MM SFP's i had which is;
GLC-SX-MM / 30-1301-01

GLC-SX-MM / 30-1301-02

GLC-SX-MM / 30-1301-03

GLC-SX-MM / 30-1301-04

What the difference behind these numbers? anyone could help me? thanks

[balaji.bandi]

The good question never saw so deep of the module, just looked at the module at my desk. now noticed some different one.

 

as per my understanding ;

Cisco 1000BaseSX SFP  850nm GLC-SX-MM Transceiver

30-1301-01 /02 /03 /04 - are part numbers

[Marvin Rhoads]

Functionally there's no difference.

Cisco encodes various part numbers differently. Generally speaking, they have to do with the manufacturer identification and year/date the part was built.

Sometimes there may be minor revisions to the firmware (yes even SFPs have firmware) and that can be reflected in the part number.

[garrison.sutton]

Is there a Release Notes document for the 30-1301-0x parts?  I would like to see what was added/changed. 

I would also like to know what to expect if I mix the parts (ie a 01 on one end and a 02 on the other).  Granted, I would prefer to put the same model number on both ends ... but if I run short and that's not possible, what symptoms would I see to let me know that my issue is with mismatched parts?  Thanks! :)