No SLM (Analogue) ports working OS7030 base cab ?

[JJJ999]

Hi...
I have a dual chassis OS7030 with no analogue ports working on the base chassis.
Thats the 2 base and one 4 port analogue card. All show idle status.
However the 4 analogue stations flash up busy once in a while on blf.
We have a digital card within and all port are ok there.
Any ideas Guy's, I believe its worth swopping psu if modular ?

 

[Fat Dave]

Ho many ports (trunks and extensions) are connected? If your over 20 thats why. Always worth making sure these 2 cabs are in Sync too. Not a fan of the twin cab 7030 its a bit flakey.

 

[iamNameless]

I've had many a OS7030 KSU loose the onboard SLT ports. Never had a 4SM card go, but only installed a handfull of these cards at most.

Make sure your 4SM is seated correctly, and your master/slave dip switches are set correctly on the EPM cards.
Also make sure the 3 x CAT5 cables are pushed all the way in.