Hdsl Deployment Guidelines; Figure 18. Hdsl Deployment Guidelines - ADTRAN HTU-C NB Installation And Maintenance Practice

HDSL DEPLOYMENT GUIDELINES

The ADTRAN HDSL system is designed to provide DS1-based services over loops designed to
comply with carrier service area (CSA) guidelines. CSA deployment guidelines are given below.
• All loops are nonloaded only.
• For loops with 26-AWG cable, the maximum loop length including bridged tap lengths is 9 kft.
• For loops with 24-AWG cable, the maximum loop length including bridged tap lengths is
12 kft.
• Any single bridged tap is limited to 2 kft.
• Total bridged tap length is limited to 2.5 kft.
• The total length of multigauge cable containing 26-AWG cable must not exceed the
following:
12 – {(3*L )/9} – L
26
Where:
L = total length of 26-AWG cable excluding bridged taps (in kft)
26
L = total length of all bridged taps (in kft)
BTAP
This deployment criteria is summarized in the chart shown in
61247002L1-5A
(in kft)
BTAP
12
11
INVALID HDSL CABLE LENGTHS
10
9
8
7
6
5
4
3
2
VALID HDSL CABLE LENGTHS
1
0
0 1 2
WORKING LENGTH OF 26 GAUGE CABLE (KFT)

Figure 18. HDSL Deployment Guidelines

Figure
TOTAL
BRIDGED
2.5
TAP
2.0
1.5
LENGTH
1.0
(KFT)
0.5
0.0
3 4 5 6 7
HDSL Deployment Guidelines
18.
8 9
27