Manualshelf

Operation Manual

ManualsBrandsBird Technologies Group ManualsElectronicsDDR Low Band UHF Remote
21222324252627282930
Table Of Contents
System Description
14
Rack-mount ICU (DIU301, DIU302)
The Rack-mount ICU is a 1U unit that contains four fields containing splitters/combiners. Each field is capable of
splitting one input into eight outputs or combining eight inputs into one output.
Figure 10 Rack-mount ICU







Each of the 4 fields has a COMMON port and ports 1-8.
When used as a combiner, the signals to combine are connected to input ports 1-8, the sum of the signals
(minus insertion loss) will be output on the COMMON port.
When used as a splitter, the combined signal is input on the COMMON port and output on ports 1-8, with
the output ports having balanced signals (minus insertion loss).
Table 8 Rack-mount ICU Specifications
Parameter Value
Insertion loss (nominal) - DIU301 37 dB
Insertion loss (nominal) - DIU302 21 dB
Bandwidth - DIU301 680-2700 MHz
Bandwidth - DIU302 88-2700 MHz
Operating Temperature -25 to +55 C (-13 to +131F)
Impedance 50 Ohm
IM3 performance > 50 dB
Return loss performance > 20 dB
Maximum common port power 20 dBm
Isolation between ports in same strip > 15 dB
Isolation between ports in different strips > 50 dB
QMA cable kit
A QMA cable kit (Bird part number DCC320) is available for use with the ICU. The kit contains 32 QMA to QMA
cables (see
Table 9
) that can be used to patch between the BIU to the ICU, BIU to the FOI or ICU to FOI.
Table 9 QMA Cable Kit
Length Quantity
250 mm (9.8”) 13
350 mm (13.8”) 13
500 mm (19.7”) 6