2250 Console

[bigtee959]

Does the console REQUIRE a 25pr cable or can it be pinned out with a standard station 4 pair cable?

Thanks
T

Terence Phillips
Telecommunication Specialist

 

[klowndog420]

The M2250 attendant console is connected to the Meridian 1 through two
digital ports (primary and secondary) with three additional ports for
powering.

I have only ever seen it connected to a switch on a dedicated 25 pair cable.

 

[GKThompson]

Nortel only ever supported the M2250 console when wired on a dedicated 25pr cable. Now as to whether nortel still even support the M2250 console is another question, one some people in Nortel cant agree on either.

I answer to your question, when i'm fitting on a customers site I always request a 25pr dedicated cable. Although I have come across so maintenance sites (not installed by us) that have M2250's running on 4pr CWT (some with and some without power TN's). I have even seen a couple wired through CAT5e using cut patch leads and Connector 78A's. Most work although they look very shabby.

On one occassion I did have a fault on a M2250 that had worked for years on CWT using 2pr and no pwr TN's, and the only way i could resolve it was to use a dedicated 25pr and 2 pwr TN's. Dont ask my why it workwed years and I had to change all that but it worked. (possibly extra M2616's added to the system pulling power off the same card as the console)

Hope that helps

G

 

[johnpoole]

matters not, primary and secondary tn and depending on distance from the switch a third tn built as pwr,, if the lamps or dim then you need power,,

even back before end of life on the 2250 i never ran a 25 pair for a console.. nortel never could tell how many spare pair i had term from their ivory tower.. they have told me that they did not support consoles without a 25 pair cable, so i told them it was a 25, i just cut off the 23 pair i didn;t use.. hard to tell from there dialup

john poole
bellsouth business
columbia,sc

 

[PERRYPJ]

JOHN IS CORRECT, I'VE EVEN POWERED THE CONSOLES WITH A 48 VOLT POWER SUPPLY LOCATED AT THE CONSOLE WHICH WAS PLUGGED INTO A UPS, SO YOU REALLY NEEDED WAS 2 PAIR

OLD ROLMEN WORKING ON NORTELS

 

[terrysdavid]

I'm curious as to the alternatives for the M2250. What are you guys using out there as your attendant console?

 

[tekice]

2 very good alternatives are SMILE from ASCOM
and Dacon do an ip version on a p.c too

 

[acewarlock]

I use a 3904 with main DID on
Key 0 4545
Key 1 4446 Non DID Rollover
Key 2 4447 Non DID Rollover
Key 3 4448 Non DID Rollover
Key 4 4449 Non DID Rollover
Key 5 4450 Non DID Rollover

We have over 300 People here and it works great.