Instruction manual

Appendix G – Replacing Timekeeper Battery
217
Instruction Manual – Enova DGX 8/16/32 Digital Media Switchers
11. Replace the three screws that were removed in Step 6.
12. Slowly slide the CPU board into the empty slot, being careful to align the edges in the board guides
along the insides (the board guides are shown in FIG. 121).
13. Push on the CPU tab firmly enough to make a good electrical connection (avoid pushing on the
connectors). When fully inserted, the faceplate on the CPU should sit flush with the back metal.
14. Reattach the faceplate with the two screws that were removed in Step 3.
15. Plug in both AC power cords.
16. Check the CPU’s System Status LED for indications of normal display (see table below).
* A system is in IOS mode when an unexpected, temporary, critical error is trapped and logged and control is
passed to the host software (IOS) which prevents normal appcode from running until the error is manually
cleared. Please report all such errors to technical support (see page 62).
17. Re-attach the cables that were removed in Step 2.
18. Execute a test switch to be sure the system is working correctly (see page 49).
Steps 19 through 22 are for setting the date and time information on the battery’s clock.
19. Use a null modem serial cable to connect a PC to the Control port (RS-232 serial) on the enclosure.
20. Open a terminal emulation program. Set the COM port and baud rate (the default baud rate for the
Enova DGX Switcher is 9600).
21. Press: CTRL+C to exit BCS and enter the DGX_SHELL.
22. At the prompt (DGX_SHELL>), enter: date -s epoch_count
(
epoch_count = the current epoch / POSIX time.
To calculate epoch time, see http://www.epochconverter.com/.)
Example:
DGX_SHELL>date -s 1312373647
(Where 1312373647 translates to Wed, 3 Aug 2011 12:14:07 UTC, which is local time)
FIG. 124 System Status LED indicator
CPU LED Indicator Normal Display Cautionary Display
System Status Constant green during power up, then
blinking green at 1/2 second on/off
intervals.
• Blinking red/green: an exception has
been logged in IOS (validation failure).
• Blinking red: dropped into IOS mode.*
System Status LED