RAD Data comm LRS-24 - Manual (Page 15)

LRS-24 Installation and Operation Manual Chapter 1 Introduction
Overview 1-3
Power Supplies
LRS-24 operates with single or dual, AC or DC power supplies. Each power supply
supports a full LRS-24 hub, including modem cards. Redundant power supply can
be replaced during operation, without affecting system performance
(hot-swapping).
Cards in the LRS-24 chassis are capable of providing remote power feeding for
repeaters and remote standalone modems. To provide remote power feeding
order a separate standalone power supply, LRS-PS-FEED.
Versions
Two different physical versions of the LRS-24 hub are available:
• ANSI −−−− card insertion, LEDs and switches are at the front, but cable
connections are at the rear of the hub. This compact, 4U high unit complies
with the American ANSI standard. Cards can be hot-swapped without
removing cables.
• ETSI −−−− card insertion, LEDs, switches and cable connections are at the front.
This version is 30 cm high (almost 6U), and complies with European ETSI
standard. Cards can be hot-swapped without removing cables.
Application
Figure 1-1 shows an application of Backbone Data Distribution up to Customer’s
Premises.
PABX
IDSL
Fiber
Fiber
MSDSL
LRS-24
SNMP
Management
Station
ASMi-31-2
FOMi-E1/T1
FOMi-E3
PABX
HDSL
HSSI
HCD-E1
ASMi-51
Router
Figure 1-1. Backbone Data Distribution up to Customer’s Premises
Figure 1-2 shows an application of Management of Local and Remote Distribution
Nodes.
Order from: Cutter Networks Ph:727-398-5252/Fax:727-397-9610 www.bestdatasource.com