User's Manual

EXCELMAX ACCESS POINT CELL INSTALLATION AND MAINTENANCE GUIDE VERSION 1.4
12
OF 65
2.2.1.1 OPTIONAL: GPS Synchronization
Global Positioning System (GPS) support is a factory-fit option for ExcelMAX Access Points.
When supported, a GPS antenna may be connected to each co-located ExcelMAX Access Point
to allow them to synchronize their RF transmissions. Although not required for basic system
operation, use of the “network synchronization” feature synchronizes Access Points so that they
transmit and receive at the same time to limit interference. This function of the GPS reduces
adjacent channel interference, and also reduces interference between adjacent base-station sites
(i.e., frequency re-use).
2.3 Major Components
2.3.1 Indoor Equipment
The indoor equipment consists of the NIA/Power Adapter, which may be an AC or DC variant,
according to the model ordered.
2.3.1.1 AC NIA/Power Adapter
The AC NIA/Power Adapter (Figure 2-4:) is the customer's interface with the Access Point. The AC
NIA/Power Adapter contains interfaces to the AC power supply, customer's data network, and the
Access Point connecting cable. The AC NIA/Power Adapter has a power indicator LED that
illuminates when power is applied to the AC NIA/Power Adapter. The AC NIA/Power Adapter is
wall-mountable using the screw hangers on the back. An included tie wrap is used for strain relief
of the interconnecting cable.
Figure 2-4: AC NIA/Power Adapter