PZ-23ELCC in a DRU?

[Switchroom]

The NEC part number 200550 on the cover is correct for a DRU-30A-B, but inside is a PZ-23ELCC card rather than the expected PZ-30LCP or LCP-A.

From the numbers, this appears to be a 23 port card for DTerms rather than a 30 port card for analog PB extensions.

Can anyone confirm? My 2400 IMX (IPX) DRU manual just shows 23ELCK and 23ELCN cards, not a 23ELCC. Considering a revision back 8 letters or more, I guess they could have made DRUs for the 4-wire DTerm I and DTerm II, and you could get 46 pairs for the stations and 2 back to the DLI card in the PBX out of two 25 pair Champ cables.

Yeah, I'll be getting in touch with the refurb vendor on this one.

Thanks for any insight...
--
Roger

 

[OzzieGeorge]

Sounds like you have a DAU-30-2D or the american equivalent. It can handle either Dterm or data circuits. You may even have a 4D which can handle 6/16D 4wire Dterms