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RE: Modem Lights

For GEMS, the DIPs are 3 and 8.  Those are the factory settings.  Please don't touch them.
As for the ARQ/FAX, I talked to Mike about this last week and am at a loss myself.  I have not seen the behaviour Steve describes but, like AccuVotes, 3COM/USR changes their firmware from time to time.  About all I can offer is that if ATI4 gives you the exact same NVRAM settings as a modem that is acting as expected, and you have the DIPs right, then you have done everything you can do.  What do the lights do if you send an ATZ command from hyperterm on the raw COM port?
To track down the "cause", the following needs to happen:
  • Get a modem that does ARQ/FAX and one that doesn't in the same room.
  • Do an ATI4 on both and make sure the NVRAM settings are the same.
  • Call 3COM with the serial numbers of the two units and ask why they behave differently when the settings are the same.
From a practical standpoint, the light either indicates Automatic Repeat reQuest, or FAX, and neither make sense (or can cause any harm) when the modem is on hook.  If it answers the second call correctly, you are on pretty safe ground here.
-----Original Message-----
From: Steve Knecht [mailto:skglobal@earthlink.net]
Sent: Monday, November 01, 1999 11:02 AM
To: Global Support
Subject: Fw: Modem Lights

I believe i received email from Mike indicating 3 and 8 down.  Is Charlie's note relevant and maybe the cause of my errant lights?
-----Original Message-----
From: Charlies Mail <ccglobal@earthlink.net>
To: Steve Knecht <skglobal@earthlink.net>
Date: Monday, November 01, 1999 8:53 AM
Subject: Re: Modem Lights

My notes say that, for incoming, dipswitches 4 & 8 should be down..... (my notes are as old as I am)   Charlie
-----Original Message-----
From: Steve Knecht <skglobal@earthlink.net>
To: Global Support <support@gesn.com>
Date: Monday, November 01, 1999 10:39 morning
Subject: Modem Lights

I don't know whether this is a problem or not.  Does anyone else.  The normal lights on the US Robotics Modem light up when the Com port is started (AA = Auto Answer, TR = Terminal Ready, and CS=Clear to Send).  However, when the 1st poll site uses modem, it does not recycle back to this state, but also has the ARQ/FAX light, which stays lit.  Is this a problem??
According to Manual light indicates
ARQ/ Error Control
/ FAX Fax Operations Data Mode: Automatic Repeat Request. ON if modem is set to &M4 or &M5 and successfully establishes an error control connection. Flashes when modem retransmits data to remote modem. Fax Mode: Flashes to indicate fax mode.
The light is just constantly on after 1st transmission.  I have 3 and 8 in "down" position.  Comments?