User's Manual

LGCell Main Hub
3-6 LGCell 4.0 Installation, Operation, and Reference Manual PN 8100-40
620004-0 Rev. B
3.2.1 Main Hub Rear Panel Connectors
N-Type Female Connectors
There are three N-type female connectors on the rear panel of the Main Hub: one
duplex and two simplex. Generally, the simplex connectors are used together and the
duplex connector is used by itself.
• Simplex Connectors
The simplex connectors provide unidirectional connection of a Main Hub to a
local base station or to a repeater that is connected to a roof-top antenna.
–The
REVERSE connector transmits uplink RF signals to a base station or a
repeater.
–The
FORWARD connector receives downlink RF signals from a base station
or a repeater.
• Duplex Connector
The
DUPLEX connector provides bidirectional (both uplink and downlink) con-
nection between the Main Hub and a base station or a repeater. This connector
has a fixed gain of 0, 30, or 40 dB, depending on the system (see Table 7-25 on
page 7-28).
Figure 3-6 N-type Female Connectors on the Main Hub
NOTE: Always keep the dust cap on unused N-type connectors.
WARNING: Exceeding the maximum input power could cause failure
of the Main Hub (refer to Section 7.1 on page 7-3 for maximum power
ratings). Attenuators may be required to limit the maximum composite
power into the Main Hub.
REVERSE FORWARD DUPLEX
DIAGNOSTIC 2 DIAGNOSTIC 1