RSU-503 Redundancy Switch Unit Installation ... - Comtech EF Data
RSU-503 Redundancy Switch Unit Installation ... - Comtech EF Data
RSU-503 Redundancy Switch Unit Installation ... - Comtech EF Data
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<strong>RSU</strong>-<strong>503</strong>L Option <strong>RSU</strong>-<strong>503</strong> <strong>Redundancy</strong> <strong>Switch</strong> <strong>Unit</strong><br />
A.1 Description<br />
A.2 Assemblies<br />
Refer to Figure A-2 for an interconnection block diagram of the <strong>RSU</strong>-<strong>503</strong>L in a typical<br />
earth station application.<br />
Using WR229 (C-band) or WR75 (Ku-band) waveguide, the <strong>RSU</strong>-<strong>503</strong>L routes the RF<br />
outputs from both RFTs directly to a waveguide switch on the antenna plate.<br />
In addition to the <strong>RSU</strong>-<strong>503</strong> functions, the <strong>RSU</strong>-<strong>503</strong>L provides command pulses for the<br />
external uplink waveguide switch (28V).<br />
The <strong>RSU</strong>-<strong>503</strong>L consists of the following assemblies:<br />
Assembly <strong>EF</strong><strong>Data</strong> Part #<br />
Top Assembly PL/3000-1<br />
Cable Harness PL/3001-1<br />
Chassis Base FP/3802<br />
Panel Divider FP/3139<br />
M&C Assembly, <strong>RSU</strong>-<strong>503</strong>L PL/3002<br />
M&C Firmware, <strong>RSU</strong>-<strong>503</strong>L FW/3080-1<br />
C A / 3005 T X / IF<br />
R X / IF<br />
TNC<br />
TN C<br />
RFT-XXX<br />
#A<br />
AS/2578<br />
R X / RF<br />
TX /RF C A / 1530<br />
WAVEGUIDE<br />
CA/3005<br />
26<br />
CA/3003<br />
M&C-RS232<br />
T X / I F R X / IF A<br />
A<br />
A<br />
70 M Hz<br />
T X / I F<br />
IN P U T<br />
R X / IF<br />
J14<br />
TN C<br />
J15<br />
TN C J 1<br />
S 1<br />
1<br />
TN C J2 J4<br />
AS/3000-1<br />
3<br />
2 4<br />
1 3<br />
70 M Hz<br />
O U T P U T<br />
TNC<br />
6<br />
S2<br />
4<br />
2<br />
P19<br />
IND<br />
6<br />
IND<br />
M& C<br />
AS/3002<br />
CA/3951<br />
UPLINK<br />
WAVEGUIDE<br />
S3 4 SW ITCH 2<br />
3<br />
1<br />
6<br />
N<br />
LNA<br />
#A<br />
RS232 J16<br />
P21<br />
12 J10 19<br />
6<br />
REM OTE<br />
CONTROL<br />
TN C<br />
TX /IF<br />
B<br />
P20<br />
WG IND<br />
TN C TN C TN C<br />
J5 J12 J6 J1 3 J8 <strong>RSU</strong>-<strong>503</strong>L<br />
R F / I F<br />
STANDBY LOW LOSS REDUNDANCY SWITCH UNIT<br />
T X / I F B<br />
TE ST STAND BY<br />
LNA<br />
TE ST<br />
IN P U T<br />
WG TO N<br />
ADAPTER<br />
LN A<br />
W A V EGUIDE<br />
LN A SW ITCH N<br />
#B<br />
IN P U T R F / IF<br />
TEST<br />
CA/3003<br />
M&C-RS232<br />
REDUNDANT SW ITCH P LA TE<br />
O U TP U T B<br />
C /A3005<br />
26<br />
R F / I F<br />
T X / I F<br />
TNC<br />
TNC<br />
RFT-XXX<br />
#B<br />
AS/2578<br />
T X / RF<br />
R X / RF<br />
W A V EG UIDE<br />
CA/1530<br />
SHOW N W ITH " B " ONLIN E<br />
Figure A-2. <strong>RSU</strong>-<strong>503</strong>L Low Loss Block Diagram<br />
TO ANTENNA<br />
FROM ANTENNA<br />
A–2 Rev. 8
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