Communications Access Point; Key Components; Figure 6 Lms4000 System - WaveRider LMS4000 User Manual

3 Detailed Description
Network Access Point (NAP)
The NAP provides the Internet connection point for one or more CAPs. An LMS4000 system
can have more than one NAP. The number of NAPs depends on the geographical layout of
the LMS4000 system and the location of available Internet access points. A single NAP can
provide Internet connection for one CAP, or several CAPs, each either colocated with the NAP
or connected to the NAP over backhaul facilities.
Internet
To Other
CAPs
Layer 3
- Switching
- Routing
10/100BaseT
Routing to/from
Internet
The following sections discuss the operation of the LMS4000 900 MHz Radio Network, of
which the CCU and EUM are the key components.
3.2

Communications Access Point

3.2.1 Key Components

The following are key components of the Communication Access Point:
• CCU
• Cavity filters
• Lightning arrestors
14
-Subscriber
Management
-Billing Data
- Authorization
- Registration
NMS Station
Network and
Equipment
Management
Router
NAP
Not part of
Backhaul (NCL1170,
for example)
RFSM
10BaseT
CCU
CCU
Switch
CCU
Radio Control
Back-up CCU
- Configuration
- Redundancy
UPS
Figure 6
EUM
LMS4000
CAP
Antenna
Antenna
Antenna
Cavity Filters
EUM
- Authorization
- Registration
LMS4000 System
End-user PC
End-user PC
EUM
EUM End-user PC
APCD-LM043-4.0