ViaSat ArcLight, User Manual, Page: 292 / 368

ArcLight Hub User’s Guide
Component Operating Procedures
5-40 1081006 Rev. 001
Table 5-6. MCD M&C ‘uc_show’ Command – Output Descriptions.
Field Description
Version Version of the Utility Card Firmware
Healthy Yes – Utility Card is healthy, No – Utility Card is not healthy and should be
replaced unless startup of the chassis is in progress or the card was purposely
put in this state for debugging
Com1 is at Backplane – normal operation for UC/M&C communication over chassis
backplane, Front Panel – debug operation where backplane UC/M&C
connection is turned off and serial console cable at the fron panel of the M&C
is in use
Pending COM
switch Yes – backplane/front panel switch is pending due to user request,
No – backplane/front panel switch is not pending
Switch fails BP/FP Statistics indicating backplane/front panel swith failures N/N’ where N is the
number failures to swsitch to backplane and N’ is the number of failures to
switch to front panel
UC fd Internal OS file descriptor for the M&C/UC backplane serial port connection
Null Dev fd When the serial port of the M&C is switched to the backplane from its front
panel on startup the OS I/O for the front panel serial port is switched to a
internal OS NULL device in order to avoid conflict with the backplane serial
port. This file descriptor allows the M&C to accomplish that.
Polling is On – Normal operation M&C polls the UC, Off – Debug operation M&C does
not poll UC
Pending setup Utility Card setup is pending or not pending – a setup involves setting several
commands over the backplane serial link from the M&C to the UC
AGC Automatic Gain Control of the Utility Card is On or Off
CtrFrq UC center frequency in Hz
93 Mhz On - 93 Mhz clock is being supplied to the CDCs, Off – 93 Mhz clock is not
being supplied to the CDCs
CtrFrqOffs UC frequency offset in Hz
Internal 10 MHz Off (default) – internal 10Mhz reference is not being generated and system is
accepting external 10Mhz reference clock, On – internal 10Mhz reference is
being generated and system is not accepting external 10Mhz reference clock
Die Timeout UC will reset if status poll not received in N milliseconds
IF On – IF is locked, Off – IF is not locked
Ejector Sw Closed (default) - swap ejection handle is closed, Open – swap ejection handle
is open and UC can be swapped
DVB N Perform average of DVB center frequency after N samples
DVB Locked – DVB signal locked, Unlocked – DVB signal unlocked
DVB Bandwidth UC DVB symbol rate
PLL Locked – Phase Lock Loop Locked, Unlocked – Phase Lock Loop Unlocked
Poll Rate The number of seconds between M&C status poll to the UC
Resp. Timeout The number of seonds M&C waits for status poll response from the UC before
declaring that poll attempt failed. After 10 consecutive poll attempt failures
the M&C reboots itself and the chassis.
Error Stats UC Error Statistics
Tx Errors M&C errors in sending messages to the UC
Semaphore
Errors M&C errors in obtaining the synchronization semaphore while trying to send
messages to the UC