Operation Manual

Fiber Distributed Antenna System (Fiber DAS)
51
ICU
The ICU is designed to be installed in a 19" rack.
 The ICU is typically installed directly above or below the Master Unit chassis. Consider post installation
changes and testing when selecting a slot to install the ICU.
Figure 36 ICU
The ICU has QMA connectors. QMA cable kit - Bird part number DCC320 is available for use with the ICU. The kit
contains 32 QMA to QMA cables (see Table 64 ) that can be used to patch between the BIU to the ICU, BIU to the
FOI or ICU to FOI.
Table 64 QMA Cable Kit
Length Quantity
250 mm (9.8”) 13
350 mm (13.8”) 13
500 mm (19.7”) 6
The ICU is configured with two identical paths - uplink and downlink. The typical configuration [DIU301 (88MHz to
2700MHz)] is four 1:8 splitters/combiners (two for UL and two for DL). Note that the theoretical loss for each
DIU301 is 35dBm.
FOI
The FOI is mounted in the Master Unit chassis (FOI DOI401 uses two slots, FOI DO301/302 uses one slot).
 The RF connections are QMA.
 The fiber connections are SC/APC.
The FOI can be ordered with an optional DCC330 jumper kit. The kit contains two SC/APC jumpers that are 5 meters
(16.4 feet) in length.
Figure 37 FOI Connections
OPTO IN/OUT
for
Remote Units
Uplink
Downlink