3Com V3000 ANALOG, Installation Manual

Page: 32 / 252

32 C
HAPTER
1: I
NTRODUCTION
CAUTION: Do not disconnect power during a system boot operation
after a software upgrade. On rare occasions, a system software upgrade
includes an upgrade to the system's flash memory image. The flash
upgrade occurs during the boot operation following a system software
upgrade. If you disconnect power during the flash upgrade, the boot
software may become corrupted and the system will need to be returned
to 3Com for repair. As the flash upgrade progresses, the system Console
displays these messages:
Upgrade Older PROM
Upgrading NCP Flash ....
Number of attempts to upgrade the flash = 1
NCP Flash Upgrade Complete
Figure 5 V3000 BRI Connectors and LEDs
1 2 3 4 5 6 7 8 9 10
Table 9 V3000 BRI Connectors and LEDs
1 Disk Status
Lights DISK ACT. — Flashing indicates disk activity.
PWR/STATUS:
■
Blinking green — System is booting.
■
Blinking red — System boot has failed.
■
Solid green — System is operational.
2 Ext. Alert Reserved for future use.
3 Paging RJ-11 connector for a 600 Ohm analog paging amplifier.
4 MOH Mini-jack (mono or stereo) that accepts Music-On-Hold audio
(maximum 2V peak to peak) from the line output of a CD player,
tape player, or other music source.
5 Console DB-9 connector that provides an RS-232 (DCE) TTY terminal
connection for access to system CLI commands and status
messages. For more information, see
“Connecting a Computer to
a Console Port” on page 196 .
6 Status
Lights Status lights S1 and S2 are normally off. They can be used by a
support technician for advanced troubleshooting.
7 USB Reserved for future use.
8 BRI Ports Four RJ-45 BRI station ports (eight channels). Ports 1 and 2 are
enabled by default. Ports 3 and 4 are activated by an optional
license.