User's Manual

Technical Specifications
RFI-148 & RFI-900 High Output Power Paging Transmitters User Manual Page 57 of 134
Input Voltage (Model
specific)
24VDC Model: 20 V to 31.2 V for 24 V nominal
-48VDC Model: -40.5 V to -57 V for -48 V nominal
110/240V AC Model: 100 to 250 V AC, 50 to 60 Hz
Operating Temperature 24
V DC and -48 V DC
-30 to 55
0
C
Operating Temperature
110/240VAC
-30 to 50
0
C
Connectors (DC model)
DC Power: Terminal block Phoenix Contact 1703454 and cable
mount plug Phoenix Contact 1967456.
Front Serial Port: DE-9 RS-232 Female (DCE)
LIU Interface: DC-37 Female
Ethernet: RJ45 socket
RF Output: N-type female 50 Ω
RF Diag: TNC female 50 Ω
External Reference Input: BNC female
Rear Serial Port
RFI-900
RFI-148
DE-9 RS-
232 Female
(DCE)
DE-9 RS-232
Male (DTE)
DC Output (RFI-900 only)
Voltage
24V
Max. Load
2A
Size
4 RU 485 mm X 470 mm X 175 mm
(includes handles & rear connectors)
RFI-148
RFI-900
Weight
14 – 17 kg (product code
dependent)
17 kg
Analogue Paging
Audio Distortion (1kHz ref. at
60% deviation)
< 0.4% (typical)
Audio Passband (3dB frequency)
50Hz – 3500Hz (typical)
Channel width
25kHz (Wideband) and
12.5kHz (Narrowband)
Frequency
Response
Flat (50Hz to
2800Hz; not
referenced to 1kHz)
+/-1dB (typical)
Pre-emphasised
(300Hz to 3000Hz,
3.3dB/octave)
+/-1.5dB (typical)
Audio
input
Level
0.035 to 2 Vp-p
(corresponding to -25dBm to
+10dBm based on 50 Ω)