BCM 1000 DSM Issue

[gforce9]

I have a customer with a BCM 1000 + an expansion cabinet. There is a DSM in the bottom slot of the main cabinet, optioned as module 6. A 2nd DSM is in the expansion cabinet optioned module 7. Also, in the expansion cabinet is a GATM 4 optioned module 5. When the DSM in xpn is plugged in, and the xpn is then powered on, the main cab DSM drops and starts flashing (like at power up). If I unseat the DSM in xpn and power up, the main cab DSM remains up. I have swapped (and verified optioning) xpn DSM with no change. I have also tried a different card slot in xpn. No change. I just found that in s/w, module 5 (GATM in xpn) shows 'empty' with the DS30 cable plugged in, xpn powered, and all s/w enabled. I am suspecting a bad PSP in xpn or a bad xpn chassis. Could it be a bad DS30 link in the main cab? Expansion cab? Anything I missed? Any ideas? Thanks in advance.

 

[gforce9]

Sorry guys.....DTM (Digital Trunk) module, not DSM.......not enough coffee.........

 

[DBrewsky]

How did you determine the BUS settings? Did you remove them and look at the dip switch settings?

 

[gforce9]

Yes...via dip switch. I'm suspecting a DS30 issue, but I want another opinion. The customer would not let me reboot (in case it is a driver issue or something) during hours. Folks in Chicago are a bit high strung.......

 

[gberger]

Put both DTM's in your main cabinet and see if you have the same issue.I always preferred to have the DTM's in the main cabinet.

 

[BCM400Guy]

The Nortel BCM Expansion Cabinet houses an additional six bays for Media Bay Modules, excluding the DTI or DDIM MBM's

I hope This helps.