User's Manual
Intelibs, Inc. Proprietary and Confidential Page 12
12
Table 2-3 RHU system’s modules
Module
Picture
Description
850 RHM
[Down Link]
This module filters 850 DL RF signal from link antenna, amplifies with
low noise, selects sub-channel by digital band pass filters and transmits
the selected 850 DL RF signal to optical module.
[Up Link]
This module filters 850 UL RF signal from optical module, selects sub-
channel by digital band pass filters, amplifies to get high power and
transmits 850 UL RF signal to antenna.
1900 RHM
[Down Link]
This module filters 1900 DL RF signal from link antenna, amplifies with
low noise, selects sub-channel by digital band pass filters and transmits
the selected 1900 DL RF signal to optical module.
[Up Link]
This module filters 1900 UL RF signal from optical module, selects sub-
channel by digital band pass filters, amplifies to get high power and
transmits 1900 UL RF signal to antenna.
FEM
This unit filters GPS L1 band signal, amplifies by low noise, converts
GPS signal into optical signal and transmits this optic signal to RU site
via fiber. This unit has two GPS ports to support path redundancy
function. If one GPS fails, second GPS port switch over automatically.
RHOM
[Down Link]
This module converts RF signal from 850/1900 RHM into optical signal
and transmits to RU site via fiber.
[Up Link]
This module converts optical signal coming from fiber into RF UL signals
and amplifies UL signals to compensate fiber loss and transmits to
850/1900 RHM.
RF Controller
(RFCU)
This module controls and monitors all parameters of 850RHM,
1900RHM and RHOM which related to 850/1900 DL/UL RF circuits.
GPS Controller
(GPSCU)
This module manages all parameters of RF circuits of two GPS path.
PoE Splitter
This module receives DC voltage through the Ethernet cable and
supplies DC voltage to each module. RHU uses one of PoE Splitter and
ACDC converter according to installation environment.
ACDC Converter
This module converts AC110V voltage to DC 24V and supply this DC
voltage to each active module. RHU uses one of PoE Splitter and ACDC
converter according to installation environment.