User Manual

Andrew InCell™ Fiber Optic Distributed Antenna System Users Guide
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Table 3. Antenna Interface Specifications
Requirement Performance Specification
Operational Bandwidth
GSM-900
DCS-1800
Dual Band 900/1800
Uplink
890-915 MHz
1710-1785 MHz
890-915 MHz
1710-1785 MHz
Downlink
935-960 MHz
1805-1880 MHz
935-960 MHz
1805-1880 MHz
Connector Types- RAU
RF
Optical Fiber
AC Power (CDU only)
DC Power
SMA
Type SC Single Mode Fiber
N/A
Molex 2-pin
Connector Locations RF connector on rear of RAU
Fiber and DC power on front of RAU
Interface Type
RF
Optical Fiber
Duplex (bi-directional port)
Single mode fiber: 1 uplink, 1 downlink
RF Impedance/VSWR 50 ohms, typical 10 dB return loss
1 dB Compression Point
Downlink
Uplink
20 dBm
N/A
Third Order Output Intercept Point
Downlink
Uplink
36 dBm
-6 dBm
Spurious Response -36 dBm from 9 kHz to 1 GHz
-30 dBm from 1 GHz to 12.75 GHz
Gain/Gain Linearity
Downlink
Uplink
15 db ± 2.5
15 db ± 2.5
Group Delay <1.0 usec (CDU, fiber and RAU)
Electrical Specifications
The power requirements for the first and second generation Central Distribution Units (CDU) are
summarized in Table 4. The RAU is generally remotely powered from the CDU.
Table 4. Electrical Specifications
Slim Line Smart Rack 3U
Line Voltage 100 – 240 VAC, 47 – 63 Hz 100 – 240 VAC, 47 – 63 Hz
Power Consumption 40 Watts (CDU w/6 RAU’s) 140 Watts (CDU w/20 RAU’s)
Power Supply Redundancy None Hot Standby
Backup Power Supply External External