User's Manual

900MHz Off-Air Repeaters (OR Series) Annex GSM-R
TECHNICAL CHARACTERISTICS
4
ANNEX 4
TECHNICAL CHARACTERISTICS
TECHNICAL CHARACTERISTICS
GSM-R ADJUSTABLE
BANDWIDTH
OFF-AIR REPEATER
48Vdc MODEL
GSM-R ADJUSTABLE
BANDWIDTH
OFF-AIR REPEATER
230Vac MODEL
Up Link operating frequency band
876MHz ÷ 880MHz
Down Link operating frequency band
921MHz ÷ 925MHz
Number of amplified bands
1
Programmable Bandwidth / steps Up to 4MHz, 10kHz step adjustable
Output Power 27dBm (2 carriers)
Noise Figure @ max. gain 8dB
Gain 50dB up to 80dB / 1dB step
Ripple into operating band ± 2dB
Total processing delay
6μs
Return Loss 14dB
ALC threshold (default value)
3dB over nominal output power
(this value can be changed on site)
Spurious emissions and intermodulation products
< -36dBm (in the frequency band 9kHz ÷ 1GHz)
< -30dBm (in the frequency band 1GHz ÷ 12.75GHz)
Local Control Interface RS232
Remote Control Interface PSTN – GSM/DCS modem
Power Supply
-72 ÷ -36Vdc
-72 ÷ -36Vdc
85÷265Vac (50-60Hz)
Power Consumption 110W @ 48Vdc 140VA @ 230Vac
Operating Temperature (*) -20°C up to +55°C
Degree of protection provided by enclosure IP65
RF connectors 7/16 female
Dimensions (h-w-d)
423x395x230mm
(max. volume - heat sinks included)
All values are typical at 25°C unless otherwise specified
(*) Degraded performances from +50°C to +55°C
GSM-R 48Vdc/230Vac ADJUSTABLE BANDWIDTH OFF-AIR REPEATERS