Rsu-5060 Operation; Figure 5-2 Rsu-5060 Functional Block Diagram - Comtech EF Data CSAT-5060 Installation And Operation Manual

C-Band Transceiver
Redundant Systems
5.2

RSU-5060 Operation

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 the 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 5-2.
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
SWITCH POS A CMD
POS B CMD
RSU-5060
RS232 line
Drives and
Receivers
&
Multiplexer
a
b
c
Td
Rd
Micro
Controller
Signal
Conditioning

Figure 5-2 RSU-5060 Functional Block Diagram

5–6
Revision 1
MN/CSAT5060.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