Maybe a few of you who are having this high failure rate could post the first 10 digits of the LBADTN Serial number. For example I have a good TA924E and the first 10 are LBADTN0923 The format goes LB - Telcordia (issuing Agency) ADTN - Adtran 09 - Year 2009 23 - 23rd Week of Year So this unit was built between June 1 and June 7th 2009. http://www.timeanddate.com/calendar/custom.html?year=2009&country=1&cols=1&w... Maybe these failing units were all part of a common manufacturing run... -----Original Message----- From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Mark Holloway Sent: Thursday, October 15, 2009 6:37 PM To: owen at impulse.net Cc: voiceops at voiceops.org Subject: Re: [VoiceOps] Problems with defective Adtran TA900s You're not alone. On Oct 15, 2009, at 5:33 PM, Owen Roth wrote:
Hello,
We deploy the total range of Adtran TA900s as CPE feature-rich boxes, and in general like the product. However, of the last 25 Adtran TA 900s we've deployed, we've had 6 with confirmed hardware defects where the symptoms range from the obvious hardware crashes, to much trickier and costly bugs to find, such as bad DSPs, and one that had a bad clocking chip. Adtran claims I'm alone in this, and it's gotten to the point where I'm seriously considering building a quality control TA900 tester in the lab to torture all prospective field boxes. Anyone notice anything like this percentage of defects?
Regards,
-- Owen Roth Network Engineer Impulse Internet Services http://impulse.net/customer-support mailto:owen at impulse.net Tech Support: 805-456-5800 w: 805-884-6332
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