How is it possible to extend the distance for a digital phone to operate. Right now I believe the NT8D02GA card's distance is 3000ft. I have an office that is hoping to relocate but the distance is 9500 ft. Switch is a CS1000M CP IV Release 4.5.
Reach Line Cards and the 9150, using IP for the site-to-site would be your easiest. They are pretty reasonably priced and basically emulate a DLC. The only thing that you will need to consider is the number of simultaneous calls and have the desired number of DSPs on both sides.
For 500 set:
ASSUMING YOU ARE USING 0.5MM COPPER CABLE THE
FOLLOWING IS A GUIDE TO THE MAXIMUM LENGTH OF
CABLE TO BE USED:-
REN 1/2..............11.4 KILOMETRES
REN 3.................10.25 KILOMETRES
REN 4.................6.8 KILOMETRES
REN 5.................4 KILOMETRES
PLEASE NOTE :: THESE FIGURES ARE FOR THE LINE LOOP
SO FOR EXAMPLE,AN EXTN WITH A REN OF 5 SHOULD NOT
BE FITTED MORE THAN 2 KILOMETRES FROM THE EQUIPT.
R = p.l/a
where R = resistance
p = resistivity ( copper is 17.2 x 10 to the power -9 )
l = length in metres
a = cross sectional area of the conducter ( metre sq )
For Aries type set:
Digital set loop resistance must be below 175 ohms. (approx 3000 ft)
All the best
Firebird Scrambler
Meridian 1 / Succession and BCM / Norstar Programmer in the UK
Sorry for not getting back earlier.....anyway pass info to management and I recommend to get the RLC with the RO 9150. Does anyone know what the price is for these items, new and where can I order them from. Found a few on web but never got any reply from companies concerning price.
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