Users Manual Part 1

Phoenix G2 IDU User Manual OVERVIEW
SAF Tehnika JSC
33
N-type connector
N-type Female connector for IRFU interconnection to antenna with coaxial cable
Grounding screw
Grounding screws should be interconnected with grounding cable and connected to ground
circuit
IRFU without built-in diplexer
Phoenix G2 IRFU without built-in diplexer has following interfaces:
Figure 1.40 IRFU interfaces
DC port
48V power supply connection. Input DC voltage operating range is -40.5V to -57V (max current
up to 3A). 2-wire DC power connector with screw terminals included. Polarity layout indicated
on the front panel. Any 2 wire power cable of good quality which fits well in SAF Tehnika’s
supplied 2 pole “screw on” power connector could be used.
Power LED
Indicates if the IRFU is powered ON
RSSI port
RSSI (Received Signal Strength Indicator) port is used to adjust the alignment of antenna for
best performance (for both rough and fine adjustment); this can be done using digital
multimeter which is connected to the RSSI port. The output of the RSSI port is DC voltage and
varies depending on received signal level.
The following chart and table shows typical relationship of the received signal level (Rx level)
displayed by Phoenix G2 vs. RSSI port output voltage. The evaluated Rx level has the error +/-2
dB.