Seiscor is a method of superimposing upto 8 lines over 1 copper pair using
high frequency carriers to modulate each line.
The down side of this is that each line has a demux and a bandpass filter,
thus reducing data speed :(
My suggestion is to get the customer to ask telecom for a dedicated cable
pair if possible.
I am surprised that they can even get 13200!!!
Russ
----- Original Message -----
From: "Chris Rigby"
I just had to deal with Telecom over a customer of ours who was having trouble getting connected and I was wondering if anyone here had experience with or had heard of the excuse Telecom gave me.
The customer in question lives on Wahiki Island and cannot connect to our pool at anything greater than 13200 (if that). After excluding all the usual problems (bad lines, bad modem etc etc) we opened a fault with Telecom who quite happily informed us that the reason it wouldn't connect at a decent speed was that the homeowner was on "Size Core" lines instead of normal phone lines, due to being so remote.
When pressed for an explanation the person in question could only tell me that "It was a method for making 8 home lines go over a single normal line". They said they couldn't give me a better explanation and didn't want to hand me to someone who could. And that was pretty much that.
Has anyone else had any experience with this sort of technology (or lack of it) and could anyone shed anymore light on the widespereadness of it's use and if it's going to become more so.
Chris Rigby Senior Systems Engineer IHUG - Into the Internet
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