SAF Phoenix G2 IDU, Руководство пользователя

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Phoenix G2 IDU User Manual OVERVIEW
SAF Tehnika JSC
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Figure 1.9 PhoeniX G2 1+0 Repeater configuration
PhoeniX G2 1+1 Frequency Diversity (FD):

FD protected (1+1) configuration is used with single antenna and OMT
(orthomode transducer) or a coupler at each side of the link

Each pair of ODUs utilizes its own frequency channel (f
low
, f
high
, f ′
low
, f ′
high
)

The outgoing (Tx) traffic at each site is passed to both ODUs, and both are
always transmitting

The incoming (Rx) traffic is picked from one of the ODUs

1+1 configuration provides hardware redundancy and mitigates multipath
fading

Both Tx and Rx switching is hitless
PhoeniX G2 1+1 Hot Standby (HSB):

HSB protected (1+1) configuration is used with single antenna and a coupler at
each side of the link

Both the incoming (Rx) and outgoing (Tx) traffic is switched to either one link
or other, only single ODU at each side is transmitting

Protects modem and radio from failure
Figure 1.10 PhoeniX G2 1+1 FD and HSB configuration with coupler
PhoeniX G2 1+1 Space Diversity (SD):

SD protected (1+1) configuration is used with two antennas at each side of the
link

Both the incoming (Rx) and outgoing (Tx) traffic is switched to either one link
or other, only single ODU at each side is transmitting

In Space Diversity mode antennas are located 10-12 meters apart hence
allows avoiding frequency selective fading - multipath (e.g. reflection over
water, air refraction, etc.)

Rx switching is hitless , Tx switching <50ms