User's Manual Part 1

December 20, 2004 SCP-LPS20x-011-012-01H
ADC Telecommunications, Inc. 7
LPS-20X
The power function within the LPS-20x removes the line power provided by the LPS-300C and generates the DC
voltage for the LPS-20x functions (Figure 3). As shown in Figure 3, the power function is integrated with the xDSL
modem circuit board. The ATM function of the modem maps all users to a single Virtual Circuit (VC) with
Unspecified Bit Rate (UBR) services.
Figure 3. LPS-20x Functional Diagram
1
5
-LP
S
2
0
xR1