User's Manual Part 2

2-12 LGCell Equipment
8
One LED to monitor RF link status (labeled
LINK STATUS
)
9
One LED to monitor sync status (labeled
SYNC
)
The Dual Band Expansion Hub Front Panel is shown below. The connectors are the
same as those explained for the single band system.
Standard MMF Uplink and Downlink Port
The Expansion Hub transmits and receives cellular or PCS signals
to and from the Main Hub using up to 1 kilometer of industry-
standard 62.5
µ
m/125
µ
m MMF cable found in most buildings.
•
Uplink/Output (labeled
UP
)
The uplink is the combination of all uplink signals received by the
RAUs. The signals are fed into the Expansion Hub via the UTP/STP
cables. The Expansion Hub then transmits the combination of all
signals to the Main Hub via the MMF cable.
•
Downlink/Input (labeled
DOWN
)
The Expansion Hub receives downlink signals from the Main Hub
via the other MMF port. The downlink signals are subsequently re-
radiated at all RAUs via the UTP/STP cable.
DUAL BAND
900 MHz
1800 MHz