3Com 3C10200 NBX Installation Guide - Page 26

26 CHAPTER 1: INTRODUCTION 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 23 4 56 7 8 9 Table 6 V3001R Connectors and LEDs 1 Dual power Power supplies are redundant and hot-swappable. supply AC connectors 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.