3Com 3C10111C - NBX 100 - Modular Exp Base, Руководство по установке, Страница: 22 / 210

22 C
HAPTER
1: I
NTRODUCTION
SuperStack 3 NBX
Core Components
The core components are the Call Processor and one or more Gateway
chassis.
SuperStack 3 NBX Call
Processor
The SuperStack 3 NBX Call Processor ( Figure 1 ) contains the system
power supplies, cooling fans, and one disk drive. Optionally, you can add
a second “mirrored” disk drive. (Disk mirroring is described in the
NBX
Administrator’s Guide in the NBX NetSet ™ utility, on the NBX Resource
Pack CD, or on the 3Com Partner Access web site .)
The Call Processor manages call traffic, voice mail, and the Automated
Attendant. It can be licensed for up to 1500 devices. See
“System
Configuration Guidelines” on page 47 for more information on the total
number of supported devices.
A SuperStack 3 NBX system is available in these base models:
■
With a single power supply and licensed for 250 devices
■
With redundant power supplies and licensed for 250 devices
CAUTION: Each of the two power supply units in the redundant model
has its own overcurrent protection device. That is, the overcurrent device
for one power supply does not protect the second power supply. You
must connect two AC power cords to the unit to power both of the
power supplies.
A SuperStack 3 NBX system includes these features:
■
Supports the Telephony Application Programming Interface (TAPI) 2.X
for Computer Telephony Integration (CTI) applications
■
Includes a web server to support the NBX NetSet administration utility
■
Includes an Internet Message Access Protocol (IMAP4) message server
for integration of voice mail and e-mail
The SuperStack 3 NBX Call Processor has these connectors and LEDs,
shown in
Figure 1 :
■
VOL — This adjusting screw controls the volume of Music On Hold.
■
MOH — This mini-jack (mono or stereo) accepts music-on-hold audio
from the line output of a CD player, tape player, or other music source.
■
PAGING — This RJ-11 connector provides an audio output or a dry
contact switch connection for use with a public address system.