Comtech EF Data CRS-400 - Manual (Page 58)

CRS-400 1:8 Redundancy Switch Revision 0
Remote Control MN/CRS400.IOM
42
3.5 F
LASH
U
PGRADING
The CRS-400 uses “flash memory” technology internally, so that new firmware can be
uploaded to the unit from an external Personal Computer (PC). Flash upgrading makes
software updates and new feature additions very simple, and allows updates to be
delivered via the Internet, E-mail, or on diskette. It is not necessary to open the unit to
perform the upgrade. Simply connect the switch to the serial port of a computer and
execute a software utility.
The cable to connect the PC to the switch is the same as is used for normal EIA-232
remote control, and consists of 3 wires between 9-pin D type female connectors. See
Chapter 2 for pinout details and an illustration of this cable.
Comtech EF Data distributes the free software utility named CCCFLASH.EXE. It is
designed to run under Windows™ 3.1x, Windows 95/98 or Windows NT. This is the
same program used to flash upgrade the CDM-550T modem. The latest switch firmware
file (for example, 400V102.CCC) is distributed with the flash upgrade utility.
3.5.2 F
LASH
U
PGRADE
P
ROCEDURE
1 Copy both the utility (CCCFLASH.EXE) and the new firmware file to the same subdirectory
(folder) on the computer’s hard disk. Do not use the root directory.
2 Connect the switch remote control port to an EIA-232 serial port on the PC.
3 Execute the CCCFLASH.EXE utility.
4 Follow the instructions presented on the screen, and the upload will take place automatically.
After the successful upload process, the unit automatically re-starts, running the new version
of firmware.
Note: During this process, the non-volatile RAM that stores the configuration of the switch
is erased.
5 Re-enter the desired configuration parameters.
3.5.3 F LASH U PGRADE H ELP
Full on-line help is provided with CCCFLASH.EXE. Please contact Comtech EF Data
Customer Support if you have questions, or for additional assistance.