NEC SV8500, Manual

Page: 1014 / 3438

VOL.2-761
MG-BRI
11.7.2 How to Upgrade Firmware by Serial Connection (Local Download)
This firmware upgrade is performed one by one, connecting a PC to each MG-BRI with a RS-232C and
a LAN cable. Prepare the following:
- Firmware for upgrade
- RS-232C cable and LAN cable (crossover) are required.
- Serial terminal emulation program (such as HyperTerminal) is required
STEP 1
Disconnect the MG-BRI from the network.
STEP 2
Connect PC(s) to MG-BRI with LAN connector and RS-232C cable both.
STEP 3
Put the firmware file (mgbri-bsc.bin), checksum file (mgbri-bsccksum), and download list file
(mgbri-boot.dat) for upgrade in the root folder of TFTP server. They are included in SP ver-
sion name folder [e.g. SP3826].
STEP 4
Allow read in this directory. For more information, refer to the appropriate manual attached to
the FTP server program.
STEP 5
Set network environment for the TFTP server.
STEP 6
Start the TFTP program.
STEP 7
Power on MG-BRI.
STEP 8
Activate HyperTerminal and set the following:
Bit per second:9600bps
Data bits:8bit
Parity:None
Stop bit:1bit
Flow control:None
STEP 9
Reboot MG-BRI. (OFF -> ON)
STEP 10
At the moment that boot programming is starting (While “
Starting MG-BRI boot
program...
” is being displayed for approximately five minutes), check version informa-
tion and then press the ESC key.
POWER
B D B D
ON
LINE
LINE 0 LINE 1 Tx/Rx LINK
MG-2B
Serial Console
TFTP Server
MG-BRI
Note 1
Note 1
Note 1
: TFTP server and Serial Console both can be performed by single Personal Computer.
RS-232C cable
LAN cable
Firmware
(1) Control MG-BRI
(2) Download firmware via
TFTP