ADCP-75-210 • Issue 1 • March 2007
Page 8
© 2007, ADC Telecommunications, Inc.
1.6 RAN Cabinet
The RAN cabinet is a NEMA-3R enclosure designed to protect its electronic components from
weather and human tampering. The cabinet is weather-tight but contact with salt-air mist should
be avoided as it may decrease the mean time between failure of some components. The cabinet
has ventilation openings to allow entry of cool air and escape of hot air. The cabinet provides
Input IP3 -21 dBm Two tone tests at -56 dBm
Received signals
In band
Out of band +/- 8.5 MHz
Out of band +11/-13 MHz
Out of band +13/-16 MHz
-41 dBm
-3 dB
-43 dB
-83 dB
RDC capability (at cabinet input)
A/D clip level, single RF channel
Selectivity
(function of SAW filter)
Selectivity
Selectivity
Automatic gain control
Detector integration time
Attack time
Decay time
Gain control range
10 usec
0 usec
0 usec
30 dB
Activated if A/D clips, changes
gain of A/D and gain in digits.
Design ensures analog gain and
digital gain change will be timed
correctly. 15 dB noise figure at
-14 dB gain
Gain in series with BTS -10 to +10 dB Lower limit for simulcast with a
host tower site, the max reduces
effect of cascaded noise figure
Gain parallel to BTS 0 to +30 dB Allows injection after BTS
amplifiers
Gain stability +/- 2dB Over temperature, frequency, and
aging valid for input signals
below AGC threshold
System Bandwidth
Forward Path
Reverse Path
15 MHz block increments
15 MHz block increments
Impedance 50 ohm
Output Power
Cellular/SMR 10 Watt MCPA
PCS 20 Watt MCPA
6.5 Watts (+38 dBm) composite
12.5 Watts (+41 dBm) composite
At antenna port
At antenna port
Gain resolution 1 dB
Gain measurement Configured at startup using fac-
tory calibration of modules and
user data
Note: The Manufacturer’s rated output power of this equipment is for single carrier
operation. For situations when multiple carrier signals are present, the rating would have
to be reduced by 3.5 dB, especially where the output signal is re-radiated and cause
interference to adjacent band users. The power reduction is to be by means of input power
or gain reduction and not by an attenuator at the output of the device.
Table 2. RAN Specifications
ITEM SPECIFICATION COMMENT
