ADLINK CoreModule 920 - Manual (Page 41)

Chapter 3 Hardware
CoreModule 920 Reference Manual 35
Miscellaneous
SSD (Solid State Drive)
The CoreModule 920 provides an 8GB SSD, which is soldered directly onto the board. For more
information refer to the SSD data sheet: http://www.greenliant.com/products/solid_state_storage.dot#sn .
Real Time Clock (RTC)
The CoreModule 920 contains a Real Time Clock (RTC). The RTC can be backed up with a battery. If the
battery is not present, the board BIOS has a battery-less boot option to complete the boot process.
Oops! Jumper (BIOS Recovery)
The Oops! jumper function is provided in the event the BIOS settings you have selected prevent you from
booting the system. By using the Oops! jumper you can prevent the current BIOS settings in flash from
being loaded, allowing you to boot using default settings.
Use a jumper to connect the DTR pin (4) to the RI pin (9) on Serial Port 1 (COM1) prior to boot up to
prevent the present BIOS settings from loading. After booting with the Oops! jumper in place, remove the
Oops! jumper and return to BIOS Setup. You must now load factory defaults by selecting Restore Defaults
from the Save & Exit menu. Then select Save Changes and Exit to reboot the system. Now you can modify
the default settings to your desired values. Ensure you save the changes before rebooting the system.
To convert a standard DB9 connector to an Oops! jumper, short together the DTR (4) and RI (9) pins on the
front of the connector as shown in Figure 3-1 on the Serial Port 1 DB9 connector.
Figure 3-1. Oops! Jumper Serial Port (DB9)
Serial Console
The CoreModule 920 BIOS supports the serial console (or console redirection) feature. This I/O function is
ANSI-compatible with a serial terminal or with equivalent terminal emulation software running on another
system. This can be very useful when setting up the BIOS on a production line for systems that are not
connected to a keyboard and display.
Serial Console Setup
The serial console feature is implemented by entering the serial console settings in the BIOS Setup Utility
and connecting the appropriate serial cable (a standard null modem serial cable or “Hot Cable”) between one
of the serial ports (COM1) and the serial terminal or a PC with communications software. Refer to Chapter
4, BIOS Setup for the connection procedure, the serial console option settings, and the settings for the serial
terminal, or PC with communications software.
Hot (Serial) Cable
To convert a standard serial cable to a “Hot Cable”, short together the RTS (7) and RI (9) pins on the serial
port cable DB9 connector as shown in Figure 3-2 .
Figure 3-2. Serial Console Jumper
CM920_Oopsjump
Standard DB9 Serial
Port Connector (Male)
Front View
5 4 3 2 1
9 8 7 6
CM920_HotCable
Standard DB9 Serial
Port Connector (Female)
Rear View
5 4 3 2 1
9 8 7 6