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Chapter 1: Product Description December 20, 2004
1-2 LTPH-UM-1261-01
TYPICAL HMS-318 LIST 3 SHELF APPLICATIONS
Capable of using various components in different types of applications, the HMS-318 List 3 shelf is designed as a
very adaptable shelf. It can be used in the following applications:
• Managed HDSLx configuration - HMU-319 (HiGain Management Unit) with HLU-319, H2TU-C-319, or H4TU-C-
319 (HiGain Line Unit) configuration
• LoopStar™ (LPS-300C) Power Module configuration (for Wi-Fi)
The HMU-319 with HLU-319/H2TU-C-319/H4TU-C-319 use 23 slots in the HMS-318 List 3 shelf. The first 22 slots
are for the HLU-319/H2TU-C-319/H4TU-C-319 and the 23rd slot is for the HMU-319 (for information about
installation and provisioning, see “Installing the HMU-319 with HLU-319, H2TU-C-319, H4TU-C-319” on page 2-13
and refer to “Related Publications” on page ix).
The LPS-300C Power Module configuration is a double-width module that supports two Span Powered xDSL or
ADSL pairs per module and is used as an integral part of the LoopStar Wi-Fi span powered Access Point (AP)
solution. A total of 11 LPS-300C modules can be installed in the UL-60950 compliant HMS-318 List 3 power shelf for
a total of 22 span powered pairs (for information about installation and provisioning, see “Installing LPS-300C Power
Module” on page 2-13 and refer to “Related Publications” on page ix).
The following front and rear views show the HMS-318 List 3 shelf using the HMU-319 and HLU-319 configuration
and the LPS-300C.
HMS-318 List 3 Front View
On the front panel, viewing from left to right, the HMS-318 List 3 shelf (see Figure 1-1) shows the orientation of the
following components:
• HiGain Line Unit (HLU): first 22 (HLU1-HLU22) slots
• HiGain Management Unit (HMU): last or 23rd slot.
Communications between the HMU slot and the HLU card slots is routed through the rear panel.
• LPS-300C: the first 22 [odd numbered slots (1, 3, 5, 7, ... 21 connections)] slot
Figure 1-1. HMS-318 List 3 Shelf - Front View
HLU 1-22 single-wide cards
LPS-300C 1-11 double-wide cards (fits in odd-numbered slots onl
y
)
HMU
5.22 in.
(13.26 cm)
01
A
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