3Com NBX, Руководство по установке

Страница: 26 / 248

26 C
HAPTER
1: I
NTRODUCTION
V3001R The V3001R features two redundant power supplies and an optional disk
mirroring system.
Table 6 describes the front panel connectors and status
lights shown in Figure 3 .
Figure 3 V3001R Connectors and LEDs
1 2 3 4 6 7 8 9 5
Table 6 V3001R Connectors and LEDs
1 Dual power
supply AC
connectors Power supplies are redundant and hot-swappable.
2 Status Light DISK/ACT — Flashing indicates disk activity.
PWR/STATUS
■
Blinking green — System is booting
■
Blinking red — System boot has failed
■
Solid green — System is operational
3 USB Reserved for future use.
4 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 .
5 Status
Lights S1 and S2 provide a visual indication of system status. See
Table 7 , for flash pattern information.
6 Ext. Alert Reserved for future use.
7 Paging RJ-11 connector for a 600 Ohm analog paging amplifier.
8 MOH Mini-jack (3.5 mm, 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.