ADTRAN HTU-C NB Installation And Maintenance Practice page 37

These approximations are to be used as guidelines only and may
vary slightly on different loops. Adhering to the guidelines should
produce performance in excess of 10
When deploying any of the HTU-C NB/WB for Litespans, the power requirements for the
application should also be considered for product mix calculations and maximum number of
HTU-C NB/WB for Litespans within a channel bank assembly. Use Worksheet PW-1 in the
Engineering and planning section of Alcatel-Lucent practice, OSP TL1 software documen-
tation release 7.1, or higher to determine whether a particular combination of channel units
is within power-drain specifications. When using the ADTRAN HTU-C NB/WB for Litespan,
use the replacement factors listed in
Configuration
Original Worksheet PW-1 values for AHT1U with no
repeater and a span-powered HTU-R.
ADTRAN HTU-C NB/WB for Litespan and an HTU -R,
(P/N 1247027Lx).
ADTRAN HTU-C NB/WB for Litespan with an HRE
(P/N 1247041Lx) or (P/N 1247045Lx), and an HTU-R
(P/N 1247026Lx).
Note: Do not use original worksheet values with ADTRAN products.
The power parameters shown in
values are derived from an HDSL system with worst-case power measurements.
Table 14. Power Parameters for Replacements to Worksheet PW-1
Power Bus
+5 V
–5 V
–48 V switch battery
–48 V talk battery
Power Consumption
Power Dissipation
Note: All worst-case HDSL loop power measurements
61247002L1-5A
Table 13
Table 13. Worksheet PW-1 Replacements
Table 14 are for the configurations listed in
ADTRAN HTU-C NB/WB for Litespan
and an HTU-R
0 mA
0 mA
135 mA
0 mA
6.48 watts
3.65 watts
NOTE
–7 BER.
instead of the ones listed in Worksheet PW-1.
A Column
Factor
0.430
0
0
ADTRAN HTU-C NB/WB for Litespan
HDSL Deployment Guidelines
B Column D Column
Factor Factor
0.076 0.200
0 0.135
0 0.255
Table 13. These
with an HRE and an HTU-R
0 mA
0 mA
255 mA
0 mA
12.24 watts
4.24 watts
29