Gamatronic GMAC-5, Руководство пользователя

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GMAC 5 User Guide 9
4. A
DDITIONAL FEATURES
4.1 Automated shutdown of computers
If a UPS is being monitored by GMAC-5, and that UPS is providing power to computers, you can instruct
GMAC-5 to shut down any of those computers in an orderly fashion in the event of a prolonged ac input
failure, before the UPS’s battery is exhausted. To achieve that you must install Shutdown Agent software
on the computers to be shut down. The Shutdown Agent can be downloaded through a link on the remote
shutdown configuration webpage (see section 5.6), or can be obtained from your GMAC-5 dealer. Use the
same configuration webpage to configure remote shutdowns.
Remote computer shutdown can also be achieved through special dedicated software installed on one of
the servers. Such software monitors the UPS through SNMP, and can be configured to send appropriate
shutdown signals to specific servers in response to a specific alarm condition. Such software may provide
more shutdown options.
4.2 The bootloader
Bootloader mode is used to upgrade GMAC-5’s system software, and to upload a previously saved
GMAC-5 configuration.
There are two ways to put GMAC-5 into bootloader mode:
• Use the “Switch to bootloader” button in the Configuration screen on the web interface (Figure 8);
Figure 8: Bootloader mode button
OR
• Reset (or power on) the device while pressing the “Act” button.
In bootloader mode GMAC-5 takes its IP address according to the user’s instruction in the
“Actual IP address” field in the “Configuration > Network” screen (see section 5.1 “Network configuration”).
When GMAC 5 is in bootloader mode and has received an IP address from DHCP, the green status LED
(see Figure 1) blinks slowly. If the default IP address is being used (after a timeout), the yellow status LED
will also be blinking. During file upload the LEDs will also blink; the rate at which they will blink depends on
the file type.
Note: if you boot the device to bootloader mode (normally for performing updates or restoring user
settings), and do not perform any activity for 5 minutes, the device automatically restarts in normal
operation mode.
If the GMAC-5 unit always boots in to the bootloader, this means that the main software is corrupt. You
must update the software again.