ATL Telecom AM2048 - Manual (Page 23)

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telecom USER GUIDE AM768A/AM2048A
23
Issue 8
4.9 Transmission Parameters
4.9.1 Transmission Range
4.9.1.1 Copper Transmission Systems
For the copper transmission systems, the equipment is designed to meet the performance limits
specified in ETR 152. This specification defines bit error rate performance for DSL systems in the
presence of noise over a variety of cable loops.
Note: For the tables below, baseline performance is measured on 0.4mm Polyethylene Twin cable.
Figures for other cable diameters are based the 0.4mm performance and extrapolated using typical
cable characteristics.
4.9.1.1.1 AM2048 MP – 2048kbps over 3 pairs
Attenuation of 31dB at 150kHz, with noise present, gives a BER of <1 x 10 E-7.
Cable diameter
(mm)
Range with noise
(km)
Range, without noise
(km)
0.4 2.8 3.5
0.5 3.73 4.67
0.63 5.19 6.48
0.9 8.00 10.00
4.9.1.1.2 AM2048 CAP – 2048kbps over 2 pairs
Attenuation of 31dB at 150kHz, with noise present, gives a BER of <1 x 10 E-7.
Cable diameter
(mm)
Range with noise
(km)
Range, without noise
(km)
0.4 2.8 4.0
0.5 3.73 5.33
0.63 5.19 7.41
0.9 8.00 11.43
4.9.1.1.3 AM2048 CAP – 2048kbps over 1 pair
Attenuation of 23dB at 150kHz, with noise present, gives a BER of <1 x 10 E-7.
Cable diameter
(mm)
Range with noise
(km)
Range, without noise
(km)
0.4 2.0 3.0
0.5 2.67 4.00
0.63 3.70 5.56
0.9 5.71 8.57