BRX-XLR User Guide
10
180-0145-001-R01
It should be noted that the Bandwidth Performances above (both in the graphs and in the table) are
conservative as they are based on tests performed with traffic on the other pairs of the cable binder
(i.e. with crosstalk) and with otherwise typical copper line conditions. Our field experience has shown
that the BRX-XLR provides even better Improvement Ratios (i.e. Bandwidth Enhancement) when
faced with “less than ideal” line conditions where the bandwidth is negatively impacted by bridge taps,
influence from power lines and/or disturbances from other pairs or the use of other protocols in the
same binder such as T1/E1, HDSL, and G.SHDSL.
3.2 Typical Increases in Customer Serving Area
The following table provides the maximum distance extension to support a 10Mbps downstream
target bandwidth on a single copper pair for the three most popular cable sizes.
Table 2: Maximum Distance for 10Mbps Service with 1-pair
Similarly, the following table provides the maximum distance extension to support a 5Mbps
downstream target bandwidth on a single copper pair for the three most popular cable sizes. The
same distances can provide a 10Mbps service over two pairs.
Table 3: Maximum Distance for 5Mbps Service with 1-pair or 10Mbps with 2-pairs
AWG
mm
k feet
km
k feet
Distance
Distance Serving Area
26
0.40
9.1
2.8
12.5
3.8
24
0.51
12.5
3.8
17.0
5.2
22
0.64
16.8
5.1
23.0
7.0
38%
91%
Maximum Distance for 10Mbps Service with 1-Pair
Cable Gauge
Without BRX-XLR
With BRX-XLR
% Increase
AWG
mm
k feet
km
k feet
Distance
Distance Serving Area
26
0.40
12.5
3.8
17.0
5.2
24
0.51
16.8
5.1
23.0
7.0
22
0.64
22.5
6.9
31.0
9.4
38%
91%
Maximum Distance for 5 Mbps Service with 1-pair or 10Mbps with 2-Pairs
Cable Gauge
Without BRX-XLR
With BRX-XLR
% Increase
