Comtech EF Data CSAT-6070 - Manual (Page 92)

50 Watt C-Band Transceiver Revision 0
Redundant Systems MN/CSAT607050.IOM
B.3 C
ONFIGURING
A R
EDUNDANT
S
YSTEM
Comtech EF Data’s Redundant CSAT system was designed to reduce the
workload of a Customer M&C system in two manners.
• First, the RSU-5060 can be configured to automatically monitor the status of the
two CSAT’s and always keep the unfaulted CSAT ONLINE.
• Second, configuration commands sent to the ONLINE CSAT via the EIA-485
interface are automatically passed along to the OFFLINE CSAT using the
AUXCOM interface.
Therefore, if the user wants to change a configuration parameter such as Tx
Frequency for the system, the user simply sends the command to the currently
ONLINE CSAT and the OFFLINE CSAT will automatically receive the same
command.This automatic update feature is true for the following configuration
parameters:
• Transmit Frequency
• Receive Frequency
• Transmit Attenuation
• Receive Attenuation
• Auto Fault Recovery
• Cold Start
In addition to this automatic update feature, the CSAT is designed to sense
whether it has gone from being the OFFLINE unit to the ONLINE unit and will
automatically perform the following functions if necessary:
• Turn ON the Transmit Amplifier
• Turn OFF the Transmit Mute
• Turn OFF the Receive Mute
This feature allows the user to run the OFFLINE unit with the Power Transistors
turned OFF to reduce power consumption if desired. However, it should be noted
that approximately a 10 to 20
°C (50 to 68°F) change in unit temperature can
occur after turning ON the Tx Amplifier and that gain stability during this warm
up period will be affected.
B-10