zabbix mikrotik ups-mib template help

Hi,
I’m trying to build a general template to monitor the UPS values I can get from a mikrotik router.
The routers have a USB port that can talk to certain UPS’s and report back data via UPS-MIB.

My challenge is that if I do a query on tik-a with the following OID, it works.
OID: .1.3.6.1.2.1.33.1.4.4.1.5.6
I get a valid result.

if I send the same OID to tik-b, i get an error
“No Such Instance currently exists at this OID”

If i remove the .6 at the end (go up one level) and run a manual cli
snmpwalk on either tik-a or tik-b it works.

I’m trying to figure out how to build a template that will work on any tik that supports the UPS values without having to be specific on the last level.

thoughts ??

thank you