3Com Nbx 100 And Ss3 Nbx Administration Guide

Configuring and Managing E1 Digital Line Cards281
To assign IP addresses one at a time:
1In the Digital Line Card IP Settings dialog box, click Assign Addresses 
Individually (Figure 109
).
Figure 109   Modify Digital Line Card IP Settings Dialog Box
2Enter the desired IP addresses for the channels.
You must have IP licenses installed before you can enter addresses.
3Enter the mask number for your site in the Common Subnet Mask field.
4Enter IP address for the Common Default Gateway.
5Click Apply.
6Click...

282CHAPTER 3: DEVICE CONFIGURATION
Removing an E1
Digital Line CardYou can remove a Digital Line Card at any time.
CAUTION:Removing a Digital Line Card may affect your Dial Plan.
To remove a Digital Line Card:
1From the NBX NetSet - Main Menu window (Figure 97
), click Device 
Configuration.
2Click the Digital Line Cards tab (Figure 98
).
3From the Select Device Type pull-down list, select T1/ISDN Board List and 
click Apply. A list of installed T1, ISDN PRI, and ISDN BRI boards appears in 
the T1/ISDN...

Configuring and Managing T1 Digital Line Cards283
You can configure the T1 Digital Line Card to use one of two types of 
signaling:
■DS1 protocol (sometimes referred to as “Standard T1”)
■ISDN PRI (Primary Rate Interface) signaling
By default, the Auto Discovery process selects DS1 as the signaling type 
for a T1 Digital Line Card.
The system provides E911 (emergency) connectivity if the T1 Digital Line 
Card is configured for ISDN PRI (Primary Rate Interface) signaling. The 
system provides the calling...

284CHAPTER 3: DEVICE CONFIGURATION
Example: Carriers commonly pass either the last three digits or last four 
digits of the number for each incoming call.
Sometimes the last digits of the telephone numbers that the carrier 
assigns to you do not match the telephone extension numbers that you 
want to use for internal calls. You can create entries in your Dial Plan 
configuration file to translate the incoming numbers into the 
corresponding extension numbers.
Example: You want to use internal extensions...

Configuring and Managing T1 Digital Line Cards285
Figure 110   NBX NetSet - Main Menu Window
The System Configuration window appears (Figure 111).
Figure 111   System Configuration — System Settings Tab
3In the System Configuration window, click the System Settings tab. 

286CHAPTER 3: DEVICE CONFIGURATION
4Click System-wide. The System-wide Dialog Box appears (Figure 112).
Figure 112   System-wide Dialog Box
5Click the Auto Discover Digital Line Cards check box (may already be 
selected).
Other check boxes may be selected based on previous Auto Discoveries. 
You do not need to clear these check boxes to install the T1 Digital Line 
Card. However, it is good practice to clear all check boxes other than the 
one that you want to select so that the Call Processor does not...

Configuring and Managing T1 Digital Line Cards287
Inserting the T1 Digital Line Card
This section describes how to insert the T1 Digital Line Card into the 
chassis. Read this cautionary note before you insert the T1 Digital Line 
Card.
CAUTION:To insert the T1 Digital Line Card into the chassis, you must 
leave the system powered on.
To insert the T1 card:
1Find the MAC address of the T1 card on the label on the card.
2Record the MAC address for the configuration process.
3Select a slot for the T1 card...

288CHAPTER 3: DEVICE CONFIGURATION
Configuring a
T1 Digital Line Card
for the DS1 ProtocolThese sections tell you how to use the NBX NetSet utility to set up your T1 
Digital Line Card for DS1 protocol:
■T1 DS1 Configuration
■Configuring T1 Groups (DS1)
■Verifying T1 Group Membership (DS1)
■Completing the T1 Configuration (DS1)
Before you configure a T1 Digital Line Card for DS1 protocol, read the 
cautionary note.
CAUTION: Wait 3 minutes for the T1 card to initialize and for the system 
to update its...

Configuring and Managing T1 Digital Line Cards289
Figure 113   Digital Line Cards Tab
3Select T1/ISDN Board List from the Select Device Type list, and click Apply. 
All Digital Line Cards (T1, E1, or BRI-ST) that the system has discovered 
appear in the list. By default, the NBX system autodiscovers a T1 Digital 
Line Card as a T1 DS1 card and displays it in the list as T1 (not PRI).
4From the list, select the new T1 Digital Line Card. Use the MAC address of 
the T1 Digital Line Card to identify the card...

290CHAPTER 3: DEVICE CONFIGURATION
Figure 114   Modify Board Dialog Box — T1
6Scroll through the Channel List to verify that the system lists all 
24 channels. Figure 114
 shows the first few channels. The channel 
numbers appear after the MAC address, separated by a dash.
Example: In the figure, the fourth line in the MAC address column 
appears as:
00:e0:bb:00:bd:f0-4...New Trunk
The 4 after the hyphen indicates channel number 4.
7To change the name of the T1 Digital Line Card, enter a new name in the...