User Manual

ADCP-75-114 • Issue 2C • January 2002
Page 5
© 2002, ADC Telecommunications, Inc.
1.9 Specifications
The specifications for the RIU are provided in Table 2. All specifications apply after a five
minute warm-up period.
Table 2. Remote Interface Unit Specifications
PARAMETER SPECIFICATION REMARKS
Environmental
Operating Temperature 0º to 50º C (32º to 122º F)
Storage Temperature –30º to +70º C (–22 to 158º F)
Humidity No condensation
Weather resistance Indoor installation only
RF Forward Path
800 MHz unit 869 to 894 MHz
1900 MHz unit 1930 to 1990 MHz
RF Gain +9 to +40 dB Adjustable in 1 dB steps
Gain Variation ± 1.5 dB Over frequency, temperature,
and unit-to-unit.
Gain stepsize accuracy ± (0.2 + 3% of gain setting in dB)
dB
Output power –20 dBm composite maximum to
Digivance ICS input
With proper input signal and
attenuation setting
Input level –29 dBm composite maximum To drive Digivance ICS DHU
VSWR 1.5:1 or better, both ports
RF Reverse Path
800 MHz unit 824 to 849 MHz
1900 MHz unit 1850 to 1910 MHz
RF Gain
800 MHz
1900 MHz
+28 to +59 dB
+33 to +64 dB
Adjustable in 1 dB steps
Gain Variation
800 MHz
1900 MHz
±1.5 dB
±3 dB
Over frequency, temperature,
and unit-to-unit.
Gain stepsize accuracy ± (0.2 + 3% of gain setting in dB)
dB
Output power
800 MHz
1900 MHz
+29 dBm composite maximum
+34 dBm composite maximum
When driven with Digivance
ICS DHU
Input level
(Recommended
composite maximum)
–30 dBm From Digivance ICS DHU
output
VSWR 1.5:1 or better, both ports
OIP3 ≥ +46 dBm
(continued)