Automatic Configuration Verification; Figure 29. 1:3 System In Auto Redundant Mode - Comtech EF Data DT-4572 Installation And Operation Manual

DT4572 X-Band Down Converter
Redundant System Operation
In a single polarity system set "POL=1" on all online units. In a dual polarity system,
where the BU has a Polarity Switch Module (PSM) installed, configure each unit to
represent the RF feed it is connected to POL=1 or POL=2. See Figure 26.
A.4.2 A
UTOMATIC
The backup Converter has a menu that allows the operator to choose, on a converter-by-
converter basis, manual (M) or automatic (A) operating mode.
Figure 29 shows the system configured for automatic (A) operation. In this mode, failure
of an online converter will automatically cause a switchover to the redundant unit to
occur. In the field, the simplest way to test this mode is to turn off an online unit. The
AUTO/MANUAL selection is made in the converter. The online units will report their
status as show in Figure 29.
POWER ON
TRANSMIT
REMOTE
POWER ON
TRANSMIT
REMOTE
POWER ON
TRANSMIT
REMOTE
POWER ON
TRANSMIT
REMOTE
C V
ONFIGURATION
STATUS
ON LINE
FAULT
STORED FAULT
STATUS
ON LINE
FAULT
STORED FAULT
STATUS
ON LINE
FAULT
STORED FAULT
STATUS
ON LINE
FAULT
STORED FAULT

Figure 29. 1:3 System in AUTO Redundant Mode

ERIFICATION
-CONVERTER-123456789ABC-
-AUTO/MAN--AAA-----------
FREQ= 72XX.XXX-MHz-AUTO-
ATTN= 10.00-DB---Tx=ON--
FREQ= 72XX.XXX-MHz-AUTO-
ATTN= 10.00-DB---Tx=ON--
FREQ= 72XX.XXX-MHz-AUTO-
ATTN= 10.00-DB---Tx=ON--
40
Rev. 0
MM/DT4572.IOM