Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.


Replacing MerMail Card Cage with IPE Card Cage

Replacing MerMail Card Cage with IPE Card Cage

I want to replace an old Meridian Mail card cage with an IPE card cage.

Do I need to pull out the System Monitor card in that column before I power down the cabinet, to pull the power and ribbon cables off, or is just disabling TTY 0 sufficient?

RE: Replacing MerMail Card Cage with IPE Card Cage

Hello Telephonist,

I would not suggest doing this with the stack "Live" . Use proper safety, and do your back-ups, schedule a maintenance window , and power the stack down . I have done this before, and the power plug-ins are very tedious to get in place with the power Off, let alone on . Too many risks involved trying to do this "Live"

RE: Replacing MerMail Card Cage with IPE Card Cage

I believe you will find once you remove the ribbon rhe stack will shut down. I agree a maint window and do at night especially if something important is in the column with the mermail



Linked in Profile

RE: Replacing MerMail Card Cage with IPE Card Cage

Of course this change-out would be done during a maintenance window, and an EDD is standard procedure.

This is a DC switch (I never had an AC switch, so I don't know if that makes a difference), and with the module powered down, there's nothing complex or dangerous about disconnecting the card cage. There's an in-line connector on the power harness that's simple to disconnect, and the only other connection is a logic return wire.

My understanding was that, with the System Monitor disabled, the ribbon cables could be disconnected without the column going down, but I may be in error there.

I'll just disable and down the column. I was hoping to not have to, to simplify the Change Management process.

RE: Replacing MerMail Card Cage with IPE Card Cage

Yes---disable and remove the system monitor---remove all cables form the monitor and do not plug them back in untill you have the system monitor plugged back in after your card cage change out. This should be done in a maint window of course---but I have on occasion had to do column work during the day and removing the system monitor will disable any shutdown mechanisms for over temperature or power and allow you to replace the shelf.

RE: Replacing MerMail Card Cage with IPE Card Cage

Thanks, kstaff,

I'll be doing this during our 5-7 am Thursday PM window on 5/18.

I'll report after.

RE: Replacing MerMail Card Cage with IPE Card Cage

Telephonist, I've got some notes here, perhaps there's something useful:

As suggested, I would disable the Sys Mon TTY, and pull it. The power cables can be a bit tricky to get at, so make sure they're properly mated. Good luck.

RE: Replacing MerMail Card Cage with IPE Card Cage

The card cage swap out went like clockwork this morning, with no service interruption in the other three modules.

It took me about an hour, by myself. Thanks for the helpful information.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!


Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close