
250
C
HAPTER
7: C
ONFIGURING
D
IGITAL
L
INE
C
ARDS
(T1, E1,
AND
BRI C
ARDS
)
■
B8ZS (Bipolar 8 Zero Substitution)
The most common combinations of
Framing Type
and
Line Code Type
are
ESF with B8ZS
, and
D4 with AMI
. The combination of ESF with B8ZS is
becoming more common.
6
Select a line length from the Line Length pull-down list. Choose the
length that best corresponds to the distance from the T1 demarcation
point (the point at which the telephone carrier’s wiring ends) and your
NBX 100.
7
Click the
On Line
check box in the lower left corner of the window.
8
Click
OK
.
Configuring the
Groups
To configure the T1 Groups, perform these steps.
1
Return to the
Digital Line Cards
tab.
2
From the
Select Device Type
list, select
ISDN PRI Group List
.
3
Click
Apply
.
4
From the
ISDN PRI Group List
, select
PRI Group 1
.
5
Click
Modify
.
Figure 95
Digital Line Cards, Modify Group Window
Summary of Contents for NBX 100
Page 1: ...http www 3com com NBX 100 Installation Guide Release 2 8 Part No 900 0026 01 November 2000 ...
Page 12: ......
Page 18: ...18 ABOUT THIS GUIDE ...
Page 128: ...128 CHAPTER 2 CONFIGURING THE DIAL PLAN ...
Page 196: ...196 CHAPTER 4 CONFIGURING NBX 100 SYSTEM LEVEL SETTINGS ...
Page 238: ...238 CHAPTER 6 SETTING UP USERS AND FEATURES 6 Click Apply to effect the changes 7 Click OK ...
Page 268: ...268 CHAPTER 7 CONFIGURING DIGITAL LINE CARDS T1 E1 AND BRI CARDS ...
Page 286: ...286 APPENDIX A NBX 100 SYSTEM SPECIFICATIONS ...
Page 290: ...290 APPENDIX B T1 AND ISDN PRI SERVICES CIRCUIT PROVISIONING ...
Page 294: ...294 APPENDIX C GUIDELINES FOR REMOTE AUDIO DEVICE CONNECTIONS ...
Page 306: ...306 INDEX ...