RadioFrame Networks Inc DH2 User Manual
Method of Procedure
System Description
System Description
14
RFN_3.1 Beta
2.1.2.3
RadioFrame Unit (RFU)
The RadioFrame Unit serves as the access interface between signals received
from mobile terminals and the airlink processing performed in the ACU. The RFU
connects to the ACU via a single CAT 5 connection, and receives its power,
signals, and timing from the ACU. Each RFU holds up to 7 RadioBlades in
combination of: a maximum of 6 iDEN RadioBlades, a maximum of 3 RAPs.
from mobile terminals and the airlink processing performed in the ACU. The RFU
connects to the ACU via a single CAT 5 connection, and receives its power,
signals, and timing from the ACU. Each RFU holds up to 7 RadioBlades in
combination of: a maximum of 6 iDEN RadioBlades, a maximum of 3 RAPs.
Figure 7
RFU functional diagram.
2.1.2.4
iDEN RadioBlade (RadioBlade or RB)
Each iDEN RadioBlade provides a single RF channel transceiver supporting the
iDEN voice standard. Each RadioBlade contains an onboard omnidirectional
antenna and provides a coverage area of approximately 32,000 square feet
(nominal 100’ radius cell). Each RadioBlade inserts into a slot in the RFU.
iDEN voice standard. Each RadioBlade contains an onboard omnidirectional
antenna and provides a coverage area of approximately 32,000 square feet
(nominal 100’ radius cell). Each RadioBlade inserts into a slot in the RFU.
Figure 8
iDEN RadioBlade functional diagram.
ACU, B
RB (1)
RB (1)
RB (1)
RB (1)
RB (1)
RFU
Backplane
RB (1)
REM
data, clock,
config, control,
timing and
power
config, control,
timing and
power
Air Interface
Air Interface
RF
Section
Digital
Processing
Power
Timing
Ethernet
RFU Backplane