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 OK.
7In the Digital Line Card IP Settings dialog box, click Apply.
8Click OK. 
						

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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 Board List.
4Select the board (Digital Line Card) you want to remove from the list.
5Click Remove. A dialog box prompts you to confirm the removal.
6Click Ye s.
Configuring and 
Managing T1 
Digital Line CardsThese sections describe how to add and configure a T1 Digital Line Card 
(
3C10116C) to connect to a T1 service provided by the local telephone 
company: 
■Adding a T1 Digital Line Card
■Configuring a T1 Digital Line Card for the DS1 Protocol
■Configuring a T1 Digital Line Card for ISDN PRI Signaling
■T1 Card Status Lights
■Modifying a T1 Card
■Modifying a T1 Group
■Modifying T1 Card Channels
■Modifying IP Settings for a T1 Card
■Removing a T1 Digital Line Card
In the NBX NetSet utility, Digital Line Cards are referred to as cards or 
boards.
Some people refer to a T1 Digital Line Card by using the category name 
TEP (T1, E1, ISDN PRI). 
						

							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 number (ANI) so that the emergency services 
personnel can determine the location of the caller from the E911 
database. You must update the CO (PSAP) databases.
Adding a T1 Digital
Line CardAdding a T1 Digital Line Card to a system requires these procedures:
■Preparing the NBX System for T1 Cards
■Ordering DID (Direct Inward Dialing) Services for T1
■Enabling Auto Discovery for Digital Line Cards
■Inserting the T1 Digital Line Card
Preparing the NBX System for T1 Cards
Before you insert the T1 Digital Line Card into the chassis, order a T1 line 
from your telephone carrier and have them install the line. In some cases, 
the telephone company offers T1 services only with specific, pre-defined 
parameters. However, some telephone companies offer a number of 
configuration choices with their T1 services.
Ordering DID (Direct Inward Dialing) Services for T1
When you order a T1 line with DID capability (Direct Inward Dial), the 
local telephone carrier assigns a block of telephone numbers to you. 
Usually, you can request a specific range of numbers, but sometimes the 
carrier assigns numbers other than the ones you request.
You may be able to request that the local telephone carrier pass you a 
specific number of digits for each incoming telephone call. Sometimes 
the carrier does not offer any choice. In either situation, you need to 
know how many digits the carrier passes. 
						

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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 from 4000 through 4999, 
but the local telephone carrier assigns you numbers from 617-555-3500 
through 617-555-4499. You can create translator entries in the Dial Plan 
configuration file to translate an incoming digit sequence such as 3795 
into extension number 4295, and a sequence such as 4213 into 4713. 
The configuration requires several translator entries to handle subsets of 
the total range. A unique set of entries handles incoming digit sequences 
from 3500 through 3599, from 3600 through 3699, and each of the 
other sequences in which the first two digits are unique in the range from 
37XX through 44XX.
If the DDI/DID numbers match your internal extension numbers, the 
translator entries in your Dial Plan configuration file can be much simpler.
Example: You plan to use internal extensions from 100 through 299, 
and the local telephone company assigns you numbers from 
617-555-4100 through 617-555-4299. If the local telephone carrier 
passes you three digits, you need no translator entries in the Dial Plan 
configuration file. If the carrier passes you four digits, you could add a 
single set of translator entries to the configuration file to remove the first 
digit (4) and use the remaining three digits as the internal extension.
Enabling Auto Discovery for Digital Line Cards
To enable Auto Discovery for Digital Line Cards:
1Log in to the NBX NetSet utility using the administrator login ID and 
password.
2In the NBX NetSet - Main Menu window (Figure 110
), click 
System Configuration. 
						

							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 continue 
to search for added devices.
6Click OK. 
						

							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 in the chassis and use a Phillips screwdriver to 
remove the blank faceplate from the slot.
4Insert the T1 card into the slot.
5Slide the T1 card into the chassis until you feel it touch the connectors.
6To seat the T1 card into the connectors, apply firm pressure to both the 
left and right sides of the front of the card.
7Tighten the left and right screws on the front of the T1 card to secure it 
to the chassis.
CAUTION: Wait 3 minutes for the T1 card to initialize and for the system 
to update its database. You must wait this long because the T1 card 
reboots twice during the initialization process. If you attach a console 
cable to the COM1 port on the T1 card and use Hyperterm software to 
view the text output from the card, you see status messages associated 
with the two reboot processes. See “Connecting a Computer to a Serial 
Port” in Chapter 10.
Another way that you can be sure that it is safe to proceed is to examine 
the status lights on the front panel of the T1 card. After the Auto 
Discovery process has completed, and before you connect the T1 Digital 
Line Card to the telephone company’s T1 line, the CF (Carrier Fail) light 
should appear solid green.
You are now ready to configure the T1 Digital Line Card for either 
DS1 signaling or ISDN PRI signaling. Before you configure a T1 card, you 
must configure the system Dial Plan as described in Chapter 2
. 
						

							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 database. You must wait this long because the T1 card 
reboots twice during the initialization process. If you attach a console 
cable to the COM1 port on the T1 card and use Hyperterm software to 
view the text output from the card, you see status messages associated 
with the two reboot processes. See “Connecting a Computer to a Serial 
Port”, in Chapter 10.
Another way that you can be sure that it is safe to proceed is to examine 
the status lights on the front panel of the T1 card. After the Auto 
Discovery process has completed, and before you connect the T1 Digital 
Line Card to the telephone company’s T1 line, the CF (Carrier Fail) light 
should appear solid green.
T1 DS1 Configuration
To set up the T1 card for the DS1 protocol:
1In the NBX NetSet - Main Menu window (Figure 110
), click Device 
Configuration.
2In the Device Configuration window, click the Digital Line Cards tab 
(Figure 113
). 
						

							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 in the list. You recorded the 
MAC address before inserting the card.
5Click Modify. The Modify Board dialog box appears (Figure 114
). 
						

							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 
Board Name field. The name you choose helps identify this card in lists 
that contain similar cards. You can use alphanumeric characters, dashes, 
and underscores. The maximum name length is 30 characters, but some 
dialog boxes truncate the name field to 15 characters.
8Click Apply to verify your changes.
9Click OK to exit.