How can you verify that there is static on the line? Shielded cable is a considerable expense... plus having to rerun the cable. Check the span for errors. CRC and BPV's are indications of signal problems. If you can do without the span for an hour or two have the telco loop you DSP for about 30 minutes and run a bit pattern (1 of 8). Paul Farber Farber Technology farber@admin.f-tech.net Ph 570-628-5303 Fax 570-628-5545 On Wed, 29 Sep 1999, Christopher Arlis Hanes wrote:
I'm having a problem with static coming and going on my PRIs. The effect then is that users are unable to temporarily dial in - the modems aren't able to negotiate a connection. I'm fairly certain the interference is being produced on the utp cat 5 cable running about 25 feet on a ladder rack from the demarc point to my boxes. I'm planning on installing shielded cable immediately but was wondering if anyone has run into similar problems and has some advice? What is the best way to measure the noise on the line? I noticed under Performance Monitor on modems you can get s/n ratio info for each connection. What are acceptable levels?
Thanks, Chris Hanes
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