Adtran AHDSL2 Manuel d'utilisateur télécharger pdf (Page 8)

8 61221002L2-5B

Figure 4. Deployment Guidelines

Table 9 lists the ADTRAN Litespan H2TU-C and

H2TU-R factors needed to calculate channel bank

power using Worksheet PW-1.

The Table 9 power factors are derived from the power

parameters listed in Table 10.

4. 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.

1. All loops are nonloaded only.

2. For loops with 26-AWG cable, the maximum

loop length including bridged tap lengths is 9 kft.

3. For loops with 24-AWG cable, the maximum

loop length including bridged tap lengths is

12 kft.

4. Any single bridged tap is limited to 2 kft.

5. Total bridged tap length is limited to 2.5 kft.

6. The total length of multigauge cable containing

26-AWG cable must not exceed the following:

12 - {(3*L

)/(9 - L

BTAP

} (in kft.)

= total length of 26-AWG cable

excluding bridged taps (in kft.)

BTAP

= total length of all bridged taps (in kft.)

7. Recommended loop resistance for circuit

deployment is ≤ 750 Ω (9 kft. of 26 AWG).

This deployment criteria is summarized in the chart

shown in Figure 4.

Power Bus

+5 V

-48 V Switch battery

Power consumption

Power dissipation

ADTRAN Litespan H2TU-C

and AH2TU-R

324 mA

125 mA

6 W

3 W

Table 10. Power Parameters

noitarugifnoCrotcaFnmuloCArotcaFnmuloCBrotcaFnmuloCCrotcaFnmuloCD

R-UT2HnapsetiLNARTDA423.0ANAN521.0

Table 9. Worksheet PW-1 Factors

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 29 30

Commentaires sur ces manuels

Pas de commentaire

Adtran AHDSL2 Manuel d'utilisateur Page 8

Commentaires sur ces manuels

Produits connexes et manuels pour Matériel Adtran AHDSL2