User's Manual

Unit Architecture
MA 850 Installation and Configuration Guide 5
1.3 Unit Architecture
MA 850 consists of the following main functional modules:
• Interface: Provides interface to the 802.11b/g AP ports.
• Gain control mechanism: Gain control to adjust 802.11b/g signals to specific site
• Combining and separating mechanism: On the downlink, combines the amplified
802.11b/g signals with the 802.11a AP signals and those of mobile services. On the
uplink, separates the signals and routes them to the corresponding ports.
• Monitoring and control: Support for WEB monitoring, SNMP MIBs displayed via a
standard Web browser and local RS232 and service options.
Figure 1-4. MobileAccess 850 Functional Block Diagram
1.4 Installation Configurations
MA 850 can be installed in the following configurations:
• Standalone – to provide coverage for 802.11b/g services only
• Add-on to a MobileAccess 1000 series RHU (with and without MA 1200 add-on)
• Add-on to MobileAccess 2000 system
NOTE: In all installation types, all the signals are converged via the MA 850 and distributed via
the antennas connected to the MA 850 antenna ports.