HDSL2 Deployment Guidelines. ADTRAN DS1, H2TU-C-231, E220 HFAC HDSL2, DSX 1, 1223024L2, 1181113L2, 1223004L12, 1223004L2, 1223026L2, 1223001L2

HDSL2 for General Distribution Installation and Maintenance Practice HDSL2 Deployment Guidelines

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 kilofeet.

• For loops with 24-AWG cable, the maximum loop length including bridged tap lengths is

12 kilofeet.

• Any single bridged tap is limited to 2 kilofeet.

• Total bridged tap length is limited to 2.5 kilofeet.

• The total length of multigauge cable containing 26-AWG cable must not exceed the results obtained in the following formula:

12–[(3*L

26)

/ (9–L

BTAP

)] (in kilofeet) where L

26

= Total length of 26-AWG cable excluding bridged taps (in kilofeet) and where L

BTAP

= Total length of all bridged taps (in kilofeet)

These deployment criteria are summarized in the chart shown in

Figure 53

.

6

5

8

7

10

9

12

11

INVALID CABLE LENGTHS

2.5

TOTAL

2.0

1.5

1.0

BRIDGED

TAP

LENGTH

(KFT)

0.5

0.0

4

3

2

VALID CABLE LENGTHS

1

0

0 1 2 3 4 5 6 7 8

WORKING LENGTH OF 26 GAUGE CABLE (KFT)

9

Figure 53. HDSL2 Deployment Guidelines

61223HDSL2L2-5B 51