Comtech EF Data CSAT-5060 Installation And Operation Manual page 93

100Watt C-Band Transceiver
Redundant Systems
B.3 RSU-5060 O
The RSU-5060 is designed to provide single-point control for both the Tx and Rx transfer
switches (Waveguide Switches). In addition, the RSU-5060 provides the customer with a single
interface connection to his M&C system. Through this interface the customer can access and
control all configuration, monitor and faults status parameters of both CSAT's. The RSU-5060 is
a 'smart box,' the unit contains a microcontroller running algorithms to process status and
command information from the two CSAT's and control the Tx and Rx waveguide switches
accordingly. A functional block diagram of the RSU-5060 is shown in Figure B-2.
RS485 Tx+
RS485 Tx-
RS485 Rx+
RS485 Rx-
Customer
A ONLINE CLOSED
Monitor
B ONLINE CLOSED
&
A FAULT OPEN
Control
B FAULT OPEN
RED AUTO/MAN
SWITCH CMD
POS B IND
POS A IND
Tx
TRANSFER
POS A CMD
SWITCH
POS B CMD
POS B IND
Rx
POS A IND
TRANSFER
POS A CMD
SWITCH
POS B CMD
Figure B-2. RSU-5060 Functional Block Diagram
PERATION
RSU-5060
RS232 line
Drives and
Recievers
&
Multiplexer
a
b
c
Td
Rd
Micro
Controller
Signal
Conditioning
B-7
Revision 0
MN/CSAT5060100.IOM
RS485 Tx+
RS485 Tx-
RS485 Rx+
RS485 Rx-
A AUXCOM Rd
CSAT A
A AUXCOM Td
A FAULT N.O.
REDUND_FLT*
POSITION A*
REDUNDANCY A*
+24 VDC
B AUXCOM Rd
B AUXCOM Td
RS485 Tx+
RS485 Tx-
RS485 Rx+
RS485 Rx-
CSAT B
B FAULT N.O.
REDUND_FLT*
POSITION B*
REDUNDANCY B*
B SELECT*
+24 VDC