2N StarGate/BlueTower v5.4 - Manual (Page 40)

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2N TELEKOMUNIKACE a.s., www.2n.cz
®
2.2 Antenna and Antenna Splitters
2N offers several antenna splitter and antenna models providing the best signal quality
on all GSM / UMTS engines. All the systems are designed for all UMTS and GSM
networks.
Antenna Splitter
The antenna splitter is designed for decreasing the number of antennas, antenna
cables, outdoor antennas and roof mounting space. The antenna splitter is a passive
unit suitable for GSM / UMTS gateways. The antenna splitter can be external (2N
®
) or internal ( ). Each splitter consists of one or more passive StarGate 2N BlueTower
®
units, each of which has four / two inputs and one output.
Number of
inputs Number of
outputs Input–Output insertion
loss Unit
high
32 2 <15 dB 2U
32 4 <11 dB 2U
32 8 <8 dB 2U
16 1 <15 dB 1U
16 2 <11 dB 1U
16 4 <8 dB 1U
12 3 <8dB 1U
Table: Standard External Antenna Splitter Configurations
Number of
inputs Number of
outputs Input–Output insertion
loss Unit
high
4 1 < 3U
Table: Internal Antenna Splitters for 2N BlueTower
®