From: Joe A (GroupStudy@xxxxxxxxxxx)
Date: Wed Aug 07 2002 - 22:48:37 GMT-3
Eric,
There's a token ring port reset tool that you use to 'charge' each port;
what it really does is resets an electromechanical relay, it doesn't really
recharge the mau itself. If I remember correctly, you just plug it in until
you hear the relay click. I just happen to have one, so I opened it up.
Here's what I found:
There are 4 connectors, color-coded from left to right - red, green, orange,
black. The black lead is labeled on the outside with a yellow stripe, which
leads me to believe it is pin one, but I can't say for sure. There's a 9
volt battery plug with the "+" lead going to the orange connector and the
"-" lead going to the red connector. There's a 1500 ohm resistor inline
with the "+" connector.
Oh, and I will never go through this much trouble to answer this question
again, so hang on to this message!!
Good luck!
Joe
Disclaimer: This info is not guaranteed to be accurate, and I make no
warranty to it's usefulness or correctness, so use it at your own risk. If
you burn or blow up anything, I am not responsible ;^)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Eric Hoffman
Sent: Wednesday, August 07, 2002 7:06 PM
To: 'ccielab@groupstudy.com'
Subject: help with 8228 mau (charge it with a 9volt?)
Hello group,
I bought an IBM 8228 mau, and cables to attach my 2504's token ring
interfaces. They don't seem to be coming up....
Here's some debugs:
00:48:41: TR0 starting.
00:49:01: TR0 receive SRB_FREE, state=2, if_state=6
00:49:01: %TR-3-OPENFAIL: Unit 0, open failed: Phys. Insertion, ring
beaconing
00:49:01: %TR-3-BADSTART: Unit 0, Start completion and wrong idb state -
state= 0
00:49:02: TR0: reset from 30900C6
00:49:02: TR0: txtmr: 0x0, msclk: 0x2CE738, qt: 0x0 (2942772ms)
00:49:03: TR0 starting.
I have found a few sites, that state that if the mau hasn't been used in a
while, you have to charge it first with a 9volt battery.... Is this true?
How would you do it if it was? I have searched and couldn't find anyway to
tell me....
August 19th is fast approaching....
Any help is appreciated.
Eric
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