Hdsl2 Deployment Guidelines; Table 8. Hdsl2 Loss Values - ADTRAN T200 Installation And Maintenance Practice

7. HDSL2 DEPLOYMENT GUIDELINES

The ADTRAN HDSL2 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)
L = Total length of 26-AWG cable
26
excluding bridged taps (in kft)
L = Total length of all bridged taps (in kft)
BTAP
These deployment criteria are summarized in the chart
shown in Figure 27.
12
11
INVALID CABLE LENGTHS
10
9
8
7
6
5
4
3
2
VALID CABLE LENGTHS
1
0
0 1 2 3
WORKING LENGTH OF 26 GAUGE CABLE (KFT)
Figure 27. HDSL2 Deployment Guidelines
61223024L2-5A
)} (in kft)
BTAP
TOTAL
BRIDGED
2.5
TAP
2.0
1.5
LENGTH
1.0
(KFT)
0.5
0.0
4 5 6 7 8
Issue 1, December 2003
Loop loss per kilofoot for other wire is summarized in
Table 8.

Table 8. HDSL2 Loss Values

Cable Cable
Gauge Type
26 PIC
26 Pulp
24 PIC
24 Pulp
22 PIC
22 Pulp
19 PIC
19 Pulp
These approximations are to be used as guide-
lines only and may vary slightly on different
loops. Adhering to the guidelines should
produce performance in excess of 10
9
Temperature (°F)
68° 90°
3.902 4.051 4.253
4.030 4.179 4.381
2.863 2.957 3.083
3.159 3.257 3.391
2.198 2.255 2.333
2.483 2.545 2.629
1.551 1.587 1.634
1.817 1.856 1.909
NOTE
BER.
-7
120°
21