Hello
Please check if the OID entStateOper 1.3.6.1.2.1.131.1.1.1.3 provides the information you need. This OID is from the Entity State MIB. In the MIB collection it is referrenced as rfc4268.mib.
You can use entPhysicalDescr or entPhysicalIndex from the ENTITY MIB (rfc2737.mib) to identify which module corresponds to which index.
Something very helpful is the commands walkmib and getmib followed by an OID on the CLI of the switch. This commands allow you to test particular OID directly on the CLI of the switch . You can use the OID in numeric or textual form.