Comtech EF Data DD240XR Rev Е User Manual
Page 36
User Interfaces
DD240XR High-Speed Digital Demodulator
4-16
MN-DD240XR – Rev. E
This screen is used to enable/disable alarms when the
demodulator has lost lock.
IFEC LOCK:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
Inner Forward Error Correction has encountered too
many errors.
OFEC LOCK:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
Outer Forward Error Correction has encountered too
many errors.
FRAME SYNC:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
DVB Frame Sync Byte (0 x 47) is not recovered from the
Input Stream.
EBNO:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
Eb/No value has fallen below the floor alarm value.
IP DEST ADDR
{Unmasked/Masked}}
Fail indicates the EDI has not received an ARP reply to
its ARP requests and thus has not been able to resolve
the destination MAC address.
ETH LINK
{Unmasked/Masked}
Fail indicates that the Ethernet Data Interface has not
been able to establish a valid physical connection on its
Ethernet data port.
COMMON (Menu):
+5V SUPPLY:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
+5 V Power Supply has drifted outside specifications.
+12V SUPPLY:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
+12 V Power Supply has drifted outside specifications.
-12V SUPPLY:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
-12 V Power Supply has drifted outside specifications.
Only on units with a HSSI or ECL BAL/UNBAL Terrestrial
Interface installed.
+24V SUPPLY:
{Pass/Fail, Unmasked/Masked}
This screen is used to enable/disable alarms when the
+24 V Power Supply has drifted outside specifications.
DEMOD HW FAULT:
{Pass/Fail, Unmasked/Masked}