Panasonic DBS Section 540 Reference Manual
Digital Business System
Section 540
T1 Networking
Reference
Manual
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Doc. No. 550X10001A |
|
|
Revised April 2000 |
|
|||||||||||||
The contents of this manual are subject to change without notice and do not constitute a commitment on the part of Panasonic Telecommunication Systems Company (PTSC). Every effort has been made to ensure the accuracy of this document. However, due to ongoing product improvements and revisions, Panasonic cannot guarantee the accuracy of printed material after the date of publication nor can it accept responsibility for errors or omissions. Panasonic will update and revise this document as needed.
The software and hardware described in this document may be used or copied only in accordance with the terms of the license pertaining to said software or hardware.
This document may be reproduced either electronically or in print as needed by certified dealers and technicians of DBS products. However, the information contained in this document must not be altered, copied, or changed in any way that misrepresents the installation, operation, or other function or feature of the DBS product or Panasonic. Panasonic assumes no liability for any alteration or misrepresentation of information contain herein.
Copyright 1996 by Panasonic Telecommunication Systems Company (PTSC)
Revised April 2000. All rights reserved.
Reference to third-party products is for information only and does not constitute an endorsement or recommendation. Panasonic does not assume responsibility for the performance of third-party products.
Contents
Chapter 1. Introduction to DBS T1 Networking
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Description of T1 Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pre-Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ordering T1 Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
What You Must Purchase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maximums . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 2. System Planning
System Planning Forms and Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 About the Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Basic Site Layout and Numbering Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Network Trunk Configuration and Trunk Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Network Trunk Group Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Network Page Group Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Network Attendant Calling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Node Route Selection (NRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Toll Restriction Service (TRS) Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Forwarding Incoming CO Calls to Another DBS Node . . . . . . . . . . . . . . . . . . . . . . . . . . 54 SMDR Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Chapter 3. Quick-Start Programming
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Programming Initial T1 Network Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Chapter 4. Programming
Settings Modified for Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Trunk Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Extension Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Other Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
T1 Settings Added for Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
DBS-2.3/9.2-540 |
T1 Networking-Revised April 2000 |
Page 3 |
Chapter 5. Network Feature Operation
Call Forwarding to Extensions on Another Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Extension to Network Extension Calling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Forwarding CO Calls to Network Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Network Attendant Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Network Call Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Blind Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Screened Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Network Conference Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Network DISA Calling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Network Paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Node Route Selection (NRS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Remote Network DBS CO Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 SMDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Chapter 6. Sync Source Examples
T1 Network - Two System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Local Connections - Not Through CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Remote Connection - Through CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
T1 Network - Three System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Local Connection - Not Through CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Remote Connections - Through CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
T1 Network - Four System Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Local Connection - Not Through CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Remote Connection - Through CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
DBS Network Telephone User Guide
Calling a Network Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Calling the Attendant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Call Forwarding to Extensions on Another Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Network Paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Transferring Calls to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Blind Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Screened Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Conferencing Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Accessing Outside Lines on Another Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Page 4 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
Chapter 1. Introduction to DBS T1 Networking
This chapter provides an overview of DBS T1 Networking.
The following table summarizes the topics contained in this chapter.
Topic |
Page |
Overview |
7 |
|
|
Description of T1 Networking |
7 |
|
|
Pre-Installation Requirements |
9 |
|
|
Ordering T1 Services |
9 |
|
|
What You Must Purchase |
10 |
|
|
System Requirements |
10 |
|
|
Maximums |
10 |
|
|
DBS-2.3/9.2-540 |
T1 Networking-Revised April 2000 |
Page 5 |
Page 6 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
Introduction to DBS T1 Networking |
Overview |
Overview
Description of T1 Networking
Two to four DBS systems may be interconnected using T1 connections to create a DBS telephone network. The DBS systems may be located in the same building, separate buildings, across the city or across the country.
DBS T1 Networking provides the following features:
•Network Extension to Extension Calling
•Call forwarding to Network Extensions
•Paging to Network DBS
•Network Route Selection
•Remote DBS CO Access
•SMDR Network Support
•Common Network Attendant Calling (calls that revert to the attendant will go to the local attendant)
The T1 Network consists of two to four DBS systems that use 4-digit numbering. The first digit (1 to 4) specifies the network DBS location (or node) to receive the call. The remaining digits follow the conventional threedigit DBS numbering plan. For instance, dialing 2105 selects extension 105 on Network DBS node 2.
Figure 1-1. DBS Network Numbering Plan
DBS 1 |
|
|
|
DBS 2 |
|
1XXX |
|
2XXX |
|
|
|
DBS 4
4XXX
DBS 3
3XXX
DBS-10-540 |
T1 Networking - Issued 9/6/96 |
Page 7 |
Overview |
Introduction to DBS T1 Networking |
Page 8 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
Introduction to DBS T1 Networking |
Pre-Installation Requirements |
Pre-Installation Requirements
Use the following guidelines to prepare your site for T1 installation.
Ordering T1 Services
The following guidelines describe T1options that must be ordered from your central office or interexchange carrier (if used). These guidelines are designed to cover almost all T1 installations. However, special requirements should be discussed with your provider.
Table 1-1. Guidelines for ordering T1 services
Item to be Ordered |
Options |
Line Type |
E&M with wink start for both incoming and outgoing calls. |
|
|
Trunk Signaling |
Wink start |
|
|
Signaling Code |
DS-1 |
|
|
Line Code |
AMI |
|
|
Framing Format |
D4 (Superframe) or ESF (Extended Superframe). D4 is used in |
|
most cases. |
|
|
Signaling Method |
In-band |
|
|
Tones |
Coordinate with T1 Service Provider. |
|
Note: If the CO does not provide dial tone, program the DBS to |
|
generate its own dial tone. |
|
|
DBS-10-540 |
T1 Networking - Issued 9/6/96 |
Page 9 |
Pre-Installation Requirements |
Introduction to DBS T1 Networking |
What You Must Purchase
Each DBS system in the network must have the appropriate T1 equipment as described in the DBS T1 Reference Manual and the DBS Installation Manual. Please refer to these manuals for a description of what must be purchased.
Note: The DBS T1 Trunk Card (VB-43561) must contain COP Version 2.0 or later.
System Requirements
•A CPC-EX is required in every networked DBS system.
•Each DBS must contain one or two T1 interfaces with at least a portion of the trunks dedicated to network traffic.
•Some DBS configurations limit the number of T1 interfaces that may be used. See Section 500 - T1 Supplement for more information.
Maximums
•Depending on the DBS cabinet configuration, each DBS in the network may have up to 48 T1 trunks dedicated to T1 Networking.
Note: Any T1 trunks not dedicated to T1 networking may be used for outside CO trunks. However each trunk used in the network diminishes the number of T1 trunks available for outside CO connections. Trunk ports not used by T1 (either with network or non-network) are available for CO trunks.
•Up to four DBS systems may be included in the DBS Network.
Page 10 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
Chapter 2. System Planning
This section provides system planning guidelines and procedures required for a DBS T1 Network and provides an example DBS Network Setup. Once this planning is performed, see Chapter 3 - “Installation and Quick Start Programming” and Chapter 4 - “Programming Reference” for programming instructions.
This chapter covers the following topics.
Topic |
Page |
System Planning Forms and Guidelines |
13 |
|
|
About the Example |
13 |
|
|
Network Trunk Configuration and Trunk Routing |
15 |
|
|
Network Trunk Group Selection |
21 |
|
|
Network Page Group Operation |
23 |
|
|
Network Attendant Calling |
29 |
|
|
Node Route Selection (NRS) |
29 |
|
|
Toll Restriction Service (TRS) Restrictions |
38 |
|
|
Forwarding Incoming CO Calls to Another DBS Node |
54 |
|
|
SMDR Settings |
59 |
|
|
DBS-2.3/9.2-540 |
T1 Networking-Revised April 2000 |
Page 11 |
Page 12 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
System Planning |
System Planning Forms and Guidelines |
System Planning Forms and Guidelines
Note: This manual assumes that the T1 card has been successfully installed in the DBS Cabinets. See Section 500 - T1 Reference Manual for T1 Installation Instructions.
About the Example
Most forms in the following pages are followed by an example. For these example forms, it is determined there are four locations across the country to be networked together as follows:
•The sites are named after their locations -- Northwest (area code 202), Northeast (area code 303), Southeast (area code 404) and Southwest (area code 505)
•Each site contains dual-cabinet DBS 96 systems and contain two T1 interfaces
•The calling traffic between DBS systems is balanced (an even amount of traffic is expected between systems). The maximum number of simultaneous calls between any two DBS systems is expected to be 8 calls or less.
•Every station is allowed to page anywhere on the network
•A network attendant is located at DBS 1
•Node Route Selection (routing calls to another node for outbound processing) is to be used for calls in a remote DBS’ area code
•TRS is to be used to restrict long distance calls originating from a distant DBS for some extensions.
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 13 |
System Planning Forms and Guidelines |
System Planning |
Basic Site Layout and Numbering Plan
Determine the DBS systems to be included in the DBS network and assign a DBS Network Number to each DBS. Use Figure 2-1 to make a basic diagram of the DBS network. Cross out any DBS not present in the network.
Figure 2-1. Network Site Layout and Numbering
DBS 1 |
|
|
|
DBS 2 |
|
1XXX |
|
2XXX |
|
|
|
DBS 4
4XXX
DBS 3
3XXX
Example
Using the basic information provided, the layout and numbering for the network are determined as shown in Figure 2-2.
Figure 2-2. Example Network Site Layout and Numbering
DBS 1 - NW |
|
|
|
DBS 2 - NE |
|
(Area Code 202) |
|
(Area Code 303) |
1XXX |
|
2XXX |
|
|
|
DBS 4 - SW
(Area Code 505)
DBS 3 - SE
(Area Code 404)
4XXX |
3XXX |
Page 14 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
System Planning |
System Planning Forms and Guidelines |
Network Trunk Configuration and Trunk Routing
Determine the network call traffic between the DBS nodes and the number of trunks required to handle this traffic. Note that calls can be relayed through another network DBS to reduce cost or simplify connections.
Diagram the trunking on the following diagram by filling in the dashed lines for actual trunk connections with a solid line.
Figure 2-3. Network Trunking Configuration
DBS 1 |
|
|
DBS 2 |
|
1XXX |
No. of Trunks _____ |
2XXX |
|
|
No. of Trunks _____ |
No. of |
No. of |
|
No. of Trunks _____ |
Trunks _____ |
Trunks _____ |
|||
DBS 4 |
|
|
DBS 3 |
|
4XXX |
|
|
3XXX |
|
|
No. of Trunks _____ |
|
|
|
Each set of network trunks connecting to another DBS must be placed into a Network Trunk Group that will be used for network call routing purposes. Up
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 15 |
System Planning Forms and Guidelines |
System Planning |
to 3 Network Trunk Groups are possible for each DBS. Label the Network Trunk Groups 1, 2, or 3 in Figure 2-4.
Figure 2-4. Network Trunk Group Configuration
DBS 1 |
Network Trunk |
Network Trunk |
DBS 2 |
|
1XXX |
Group _____ |
Group _____ |
2XXX |
|
|
Network Trunk |
Network Trunk |
|
|
|
Group _____ |
|
||
|
Group _____ |
|
||
|
|
|
||
Network Trunk |
|
|
Network Trunk |
|
Group _____ |
|
|
Group _____ |
|
Network Trunk |
|
|
Network Trunk |
|
Group _____ |
Network Trunk |
Network Trunk |
Group _____ |
|
DBS 4 |
DBS 3 |
|||
Group _____ |
Group _____ |
|||
4XXX |
|
|
3XXX |
|
|
Network Trunk |
Network Trunk |
|
|
|
Group _____ |
Group _____ |
|
Page 16 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
System Planning |
System Planning Forms and Guidelines |
Allocate the Network Trunks to Network Trunk Groups in Table 2-1 through Table 2-4.
Table 2-1. DBS 1 Network Trunk Assignments
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
Trunks |
Trunks |
Trunks |
|
|
|
Table 2-2. DBS 2 Network Trunk Assignments
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
|
Trunks |
Trunks |
Trunks |
|
|
|
|
|
Table 2-3. DBS 3 Network Trunk Assignments |
|
|
|
|
|
|
|
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
|
Trunks |
Trunks |
Trunks |
|
|
|
|
|
Table 2-4. DBS 4 Network Trunk Assignments |
|
|
|
|
|
|
|
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
|
Trunks |
Trunks |
Trunks |
|
|
|
|
|
|
|
|
|
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 17 |
System Planning Forms and Guidelines |
System Planning |
Example
In this example call traffic is not expected to exceed 8 simultaneous calls. Eight trunks for calls between any two DBS systems should be adequate. However, under the T1 configuration being considered, a call can be relayed by an intermediary DBS. In this case, a call will pass through one DBS to get to another. Therefore a maximum of 16 network trunks between any two systems should be enough. All remaining T1 trunks may be split off to handle CO calls. Figure 2-5 illustrates the determined network trunk configuration.
Figure 2-5. Example Networking Trunking Configuration
DBS 1 |
|
DBS 2 |
1XXX |
|
2XXX |
|
16 Tie Trunks |
|
|
|
|
16 Tie Trunks |
16 Tie Trunks |
|
16 Tie Trunks |
|
DBS 4 |
|
DBS 3 |
4XXX |
|
3XXX |
|
|
|
Page 18 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
System Planning |
System Planning Forms and Guidelines |
The actual trunk numbers used and the Network Trunk Group Numbers must be determined for each DBS. In this example, each DBS has two sets of trunks for network calls. These paths are assigned a Network Trunk Group number (either Network Trunk Group 1 or Network Trunk Group 2) as shown in Figure 2-6 below:
Figure 2-6. Example Network Trunk Group Configuration
DBS 1 1XXX
Network Trunk |
Network Trunk |
Group 2 |
Group 2 |
DBS 2 2XXX
Network Trunk |
Network Trunk |
Group 1 |
Group 1 |
Network Trunk |
Network Trunk |
Group 1 |
Group 1 |
DBS 4 |
DBS 3 |
4XXX |
3XXX |
Network Trunk |
Network Trunk |
Group 2 |
Group 2 |
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 19 |
System Planning Forms and Guidelines |
System Planning |
Each Network Trunk Group contains 16 trunks. The example Network Trunks to Network Trunk Groups configurations are listed in Table 2-5 through Table 2-8.
Table 2-5. Example DBS 1 Network Trunk Assignments
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
Trunks |
Trunks |
Trunks |
17-32 |
49-64 |
N/A |
|
|
|
Table 2-6. Example DBS 2 Network Trunk Assignments |
|
|
|
|
|
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
Trunks |
Trunks |
Trunks |
17-32 |
49-64 |
N/A |
|
|
|
Table 2-7. Example DBS 3 Network Trunk Assignments |
|
|
|
|
|
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
Trunks |
Trunks |
Trunks |
17-32 |
49-64 |
N/A |
|
|
|
Table 2-8. Example DBS 4 Network Trunk Assignments |
|
|
|
|
|
Network Trunk Group 1 |
Network Trunk Group 2 |
Network Trunk Group 3 |
Trunks |
Trunks |
Trunks |
17-32 |
49-64 |
N/A |
|
|
|
Page 20 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
System Planning |
System Planning Forms and Guidelines |
Network Trunk Group Selection
Each DBS system determines how to route a network call by selecting a Network Trunk Group based upon the leading digit dialed. When a network call is dialed, the system will try to route the call via an available trunk in the Network Trunk Group with first priority. If no trunk in this Network Trunk Group is available, the DBS will then try to route the call via a trunk in the group with second priority then third priority. For each DBS, assign the network trunk routing for each node number dialed using Table 2-9 through Table 2-12:
Table 2-9. Network Trunk Group Selection for DBS 1
|
Network Node |
1st Priority |
2nd Priority |
3rd Priority |
|
(Leading Digit |
Network Trunk |
Network Trunk |
Network Trunk |
|
Dialed) |
Group |
Group |
Group |
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|
|
|
|
|
|
|
|
4 |
|
|
|
|
|
|
|
|
Table 2-10. Network Trunk Group Selection for DBS 2 |
|
|
||
|
|
|
|
|
|
Network Node |
1st Priority |
2nd Priority |
3rd Priority |
|
(Leading Digit |
Network Trunk |
Network Trunk |
Network Trunk |
|
Dialed) |
Group |
Group |
Group |
|
1 |
|
|
|
|
|
|
|
|
|
3 |
|
|
|
|
|
|
|
|
|
4 |
|
|
|
|
|
|
|
|
Table 2-11. Network Trunk Group Selection for DBS 3 |
|
|
||
|
|
|
|
|
|
Network Node |
1st Priority |
2nd Priority |
3rd Priority |
|
(Leading Digit |
Network Trunk |
Network Trunk |
Network Trunk |
|
Dialed) |
Group |
Group |
Group |
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 21 |
System Planning Forms and Guidelines |
|
|
System Planning |
|
Table 2-12. Network Trunk Group Selection for DBS 4 |
|
|
||
|
|
|
|
|
|
Network Node |
1st Priority |
2nd Priority |
3rd Priority |
|
(Leading Digit |
Network Trunk |
Network Trunk |
Network Trunk |
|
Dialed) |
Group |
Group |
Group |
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|
|
|
|
|
|
|
Example
From Figure 2-6 we determine the best choices for routing network calls to the other DBS nodes. These routes are listed in Table 2-13 through Table 2- 16.
Table 2-13. Example Network Trunk Group Selection for DBS 1
Network Node |
1st Priority |
2nd Priority |
3rd Priority |
(Leading Digit |
Network Trunk |
Network Trunk |
Network Trunk |
Dialed) |
Group |
Group |
Group |
2 |
2 |
1 |
N/A |
|
|
|
|
3 |
2 |
1 |
N/A |
|
|
|
|
4 |
1 |
2 |
N/A |
|
|
|
|
Table 2-14. Example Network Trunk Group Selection for DBS 2
Network Node |
1st Priority |
2nd Priority |
3rd Priority |
(Leading Digit |
Network Trunk |
Network Trunk |
Network Trunk |
Dialed) |
Group |
Group |
Group |
1 |
2 |
1 |
N/A |
|
|
|
|
3 |
1 |
2 |
N/A |
|
|
|
|
4 |
1 |
2 |
N/A |
|
|
|
|
Page 22 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
|
System Planning |
|
System Planning Forms and Guidelines |
||||
Table 2-15. Example Network Trunk Group Selection for DBS 3 |
|
|
|||||
|
|
|
|
|
|
|
|
|
|
Network Node |
1st Priority |
|
2nd Priority |
3rd Priority |
|
|
|
(Leading Digit |
Network Trunk |
|
Network Trunk |
Network Trunk |
|
|
|
Dialed) |
Group |
|
Group |
Group |
|
|
|
1 |
2 |
|
1 |
N/A |
|
|
|
|
|
|
|
|
|
|
|
2 |
1 |
|
2 |
N/A |
|
|
|
|
|
|
|
|
|
|
|
4 |
2 |
|
1 |
N/A |
|
|
|
|
|
|
|
||
Table 2-16. Example Network Trunk Group Selection for DBS 4 |
|
|
|||||
|
|
|
|
|
|
|
|
|
|
Network Node |
1st Priority |
|
2nd Priority |
3rd Priority |
|
|
|
(Leading Digit |
Network Trunk |
|
Network Trunk |
Network Trunk |
|
|
|
Dialed) |
Group |
|
Group |
Group |
|
|
|
1 |
1 |
|
2 |
N/A |
|
|
|
|
|
|
|
|
|
|
|
2 |
1 |
|
2 |
N/A |
|
|
|
|
|
|
|
|
|
|
|
3 |
2 |
|
1 |
N/A |
|
|
|
|
|
|
|
|
|
Network Page Group Operation
DBS Networking allows paging across the network. An extension may originate a page on a distant networked DBS by dialing the DBS node number (1-4) followed by the Paging Access code. For example, to page DBS node 3 Paging Group 01, dial 3#01.
A Network Paging Class of Service Parameter has been added to enable or disable network paging. This Class of Service (COS) is then checked when a network page is dialed to allow or deny the extension paging access.
The network DBS that receives a page request may also choose to allow or deny a network page. A Class of Service may be assigned to each incoming Network Trunk Group. If a page request is received on a Network Trunk Group, its Class of Service is checked to determine if the page is to be allowed or denied.
Assign network paging restrictions (enable or disable) to each Class of
Service.
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 23 |
System Planning Forms and Guidelines |
|
|
System Planning |
||
Table 2-17. DBS 1 Network Paging Class of Service Assignments |
|
|
|
||
|
|
|
|
||
|
Class of Service |
Enable Network Paging? |
|
||
|
0 |
Yes (predefined, cannot be changed) |
|
||
|
|
|
|
|
|
|
1 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
2 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
3 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
4 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
5 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
6 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
7 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
8 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
Table 2-18. DBS 2 Network Paging Class of Service Assignments |
|
|
|
||
|
|
|
|
||
|
Class of Service |
Enable Network Paging? |
|
||
|
0 |
Yes (predefined, cannot be changed) |
|
||
|
|
|
|
|
|
|
1 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
2 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
3 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
4 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
5 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
6 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
7 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
8 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
Table 2-19. DBS 3 Network Paging Class of Service Assignments |
|
|
|
||
|
|
|
|
||
|
Class of Service |
Enable Network Paging? |
|
||
|
0 |
Yes (predefined, cannot be changed) |
|
||
|
|
|
|
|
|
|
1 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
2 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
3 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
4 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
5 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
6 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
7 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
8 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
Page 24 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
|
System Planning |
System Planning Forms and Guidelines |
||||
Table 2-20. DBS 4 Network Paging Class of Service Assignments |
|
|
|
|||
|
|
|
|
|
||
|
|
Class of Service |
Enable Network Paging |
|
||
|
|
0 |
Yes (predefined, cannot be changed) |
|
||
|
|
|
|
|
|
|
|
|
1 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
2 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
3 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
4 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
5 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
6 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
7 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
|
|
8 |
Yes ___ |
or |
No ___ |
|
|
|
|
|
|
|
|
In order for an extension to perform network paging, it must be assigned a Class of Service that allows network paging.
Assign all extensions in the network an appropriate class of service to allow or deny network paging. The receiving DBS may allow or deny network pages by assigning a Class of Service to the incoming Network Trunk Group. List the Network Trunk Group COS assignments in Table 2-21 through Table 2-24 below.
Table 2-21. DBS 1 Network Trunk Group Paging Class of Service Assignments
|
Incoming Network |
|
|
Trunk Group |
Network Paging COS (0-8) |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
Table 2-22. DBS 2 Network Trunk Group Paging Class of Service Assignments |
||
|
|
|
|
Incoming Network |
|
|
Trunk Group |
Network Paging COS (0-8) |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 25 |
System Planning Forms and Guidelines |
System Planning |
Table 2-23. DBS 3 Network Trunk Group Paging Class of Service Assignments
|
Incoming Network |
|
|
Trunk Group |
Network Paging COS (0-8) |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
Table 2-24. DBS 4 Network Trunk Group Paging Class of Service Assignments |
||
|
|
|
|
Incoming Network |
|
|
Trunk Group |
Network Paging COS (0-8) |
|
1 |
|
|
|
|
|
2 |
|
|
|
|
|
3 |
|
|
|
|
Note: Remember to assign the extensions at the receiving DBS node to an appropriate paging group.
Example
In our example, any extension may originate a page to any node. We therefore allow network paging on every COS.
Table 2-25. DBS 1 Network Paging Class of Service Assignments
Class of Service |
Enable Network Paging? |
|||||
0 |
Yes (predefined, cannot be changed) |
|||||
|
|
|
|
|
||
1 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
2 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
3 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
4 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
5 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
6 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
7 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
8 |
Yes X |
|
or |
No ___ |
||
|
|
|
|
|
|
|
Page 26 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
|
System Planning |
|
|
System Planning Forms and Guidelines |
||||||
Table 2-26. DBS 2 Network Paging Class of Service Assignments |
|
|
|
|||||||
|
|
|
|
|
|
|
|
|
||
|
|
Class of Service |
Enable Network Paging? |
|
||||||
|
|
0 |
Yes (predefined, cannot be changed) |
|
||||||
|
|
|
|
|
|
|||||
|
|
1 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
2 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
3 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
4 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
5 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
6 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
7 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
8 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
Table 2-27. DBS 3 Network Paging Class of Service Assignments |
|
|
|
|||||||
|
|
|
|
|
||||||
|
|
Class of Service |
Enable Network Paging? |
|
||||||
|
|
0 |
Yes (predefined, cannot be changed) |
|
||||||
|
|
|
|
|
|
|||||
|
|
1 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
2 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
3 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
4 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
5 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
6 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
7 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
8 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
Table 2-28. DBS 4 Network Paging Class of Service Assignments |
|
|
|
|||||||
|
|
|
|
|
||||||
|
|
Class of Service |
Enable Network Paging |
|
||||||
|
|
0 |
Yes (predefined, cannot be changed) |
|
||||||
|
|
|
|
|
|
|||||
|
|
1 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
2 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
3 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
4 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
5 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
6 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
7 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|||
|
|
8 |
Yes X |
or |
No ___ |
|
||||
|
|
|
|
|
|
|
|
|
|
|
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 27 |
System Planning Forms and Guidelines |
System Planning |
In order for an extension to perform network paging, it must be assigned a Class of Service that allows network paging. In our example, we are assigning all extensions to COS 1 that allows network paging.
The receiving DBS may allow or deny network pages by assigning a Class of Service to the incoming Network Trunk Group. In our example, all network trunk groups are assigned to COS 1 to allow network paging as shown in Table 2-29 through Table 2-32 below.
Table 2-29. Example DBS 1 Network Trunk Group Paging Class of Service Assignments
Incoming Network |
|
Trunk Group |
Network Paging COS (0-8) |
1 |
1 |
|
|
2 |
1 |
|
|
3 |
1 |
|
|
Table 2-30. Example DBS 2 Network Trunk Group Paging Class of Service Assignments
Incoming Network |
|
Trunk Group |
Network Paging COS (0-8) |
1 |
1 |
|
|
2 |
1 |
|
|
3 |
1 |
|
|
Table 2-31. Example DBS 3 Network Trunk Group Paging Class of Service Assignments
Incoming Network |
|
Trunk Group |
Network Paging COS (0-8) |
1 |
1 |
|
|
2 |
1 |
|
|
3 |
1 |
|
|
Table 2-32. Example DBS 4 Network Trunk Group Paging Class of Service Assignments
Incoming Network |
Network Paging COS (0-8) |
Trunk Group |
|
1 |
1 |
|
|
2 |
1 |
|
|
3 |
1 |
|
|
All extensions in the example DBS are assigned to paging groups.
Page 28 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
System Planning |
System Planning Forms and Guidelines |
Network Attendant Calling
DBS networking allows for calling a network attendant. This attendant may be any DBS attendant in the network. If a user dials 0, the call is routed to this system attendant.
Note: Calls that revert to the attendant will revert to the local attendant, not the network attendant.
Table 2-33. Network Attendant Calling
Dial “0” Calls Originat- |
|
|
Calls Attendant at |
|
||
ing From User on |
|
|
|
|
|
|
Same DBS |
DBS 1 |
|
DBS 2 |
DBS 3 |
DBS 4 |
|
|
|
|||||
DBS 1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
DBS 2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
DBS 3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
DBS 4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Example
In our example, a network attendant is located at DBS 1. If a user dials 0 at any DBS, the call is routed to the attendant on DBS 1
Table 2-34. Example Network Attendant Calling
Dial “0” Calls Originat- |
|
|
Calls Attendant at |
|
||
ing From User on |
|
|
|
|
|
|
Same DBS |
DBS 1 |
|
DBS 2 |
DBS 3 |
DBS 4 |
|
|
|
|||||
DBS 1 |
X |
|
|
|
|
|
|
|
|
|
|
|
|
DBS 2 |
|
X |
|
|
|
|
|
|
|
|
|
|
|
DBS 3 |
|
X |
|
|
|
|
|
|
|
|
|
|
|
DBS 4 |
|
X |
|
|
|
|
|
|
|
|
|
|
|
Node Route Selection (NRS)
Outside calls made on a DBS may be routed through another DBS before outdialing to the public network. This is called Node Route Selection. Typically, this is used to reduce long distance charges by routing calls based on the area code(s) where the remote DBS is located.
Each DBS NRS table contains up to 50 NRS entries. Each entry contains the dialed number to match (up to 6 digits), the minimum number of digits to be dialed, and which network DBS (1-4) should receive the call. List any dialed numbers to be included in NRS in Table 2-35 through Table 2-38.
If more than one NRS match is possible, then NRS will process the call using the NRS entry with the most complete match possible. For instance if one
DBS-2.3/9.2-540 |
T1 Networking - Revised April 2000 |
Page 29 |
System Planning Forms and Guidelines |
System Planning |
NRS entry is 1201 and another is 12013, then if 12013333333 is dialed, then the 12013 NRS entry is used. If 12014444444 is dialed, then the 1201 NRS entry is used.
Note: If a call is routed to a remote DBS, LCR processing at the remote DBS may need to delete digits. For instance, if 1201XXXXXXX is routed by NRS to a DBS in area code 201, the 1201 will need to be deleted by LCR when dialed out by the remote DBS. (For information on LCR programming, see the DBS Section 400 - Programming.)
Table 2-35. NRS for DBS 1
|
|
|
Network |
|
|
|
|
Network |
|
|
Min. # |
Node to |
|
|
|
|
Node to |
Item |
Dialed Number |
of |
Outdial |
|
Item |
Dialed Number |
Min. # |
Outdial |
# |
(Up to 6 digits) |
Digits |
the Call |
|
# |
(Up to 6 digits) |
of Digits |
the Call |
1 |
|
|
|
|
26 |
|
|
|
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
27 |
|
|
|
|
|
|
|
|
|
|
|
|
3 |
|
|
|
|
28 |
|
|
|
|
|
|
|
|
|
|
|
|
4 |
|
|
|
|
29 |
|
|
|
|
|
|
|
|
|
|
|
|
5 |
|
|
|
|
30 |
|
|
|
|
|
|
|
|
|
|
|
|
6 |
|
|
|
|
31 |
|
|
|
|
|
|
|
|
|
|
|
|
7 |
|
|
|
|
32 |
|
|
|
|
|
|
|
|
|
|
|
|
8 |
|
|
|
|
33 |
|
|
|
|
|
|
|
|
|
|
|
|
9 |
|
|
|
|
34 |
|
|
|
|
|
|
|
|
|
|
|
|
10 |
|
|
|
|
35 |
|
|
|
|
|
|
|
|
|
|
|
|
11 |
|
|
|
|
36 |
|
|
|
|
|
|
|
|
|
|
|
|
12 |
|
|
|
|
37 |
|
|
|
|
|
|
|
|
|
|
|
|
13 |
|
|
|
|
38 |
|
|
|
|
|
|
|
|
|
|
|
|
14 |
|
|
|
|
39 |
|
|
|
|
|
|
|
|
|
|
|
|
15 |
|
|
|
|
40 |
|
|
|
|
|
|
|
|
|
|
|
|
16 |
|
|
|
|
41 |
|
|
|
|
|
|
|
|
|
|
|
|
17 |
|
|
|
|
42 |
|
|
|
|
|
|
|
|
|
|
|
|
18 |
|
|
|
|
43 |
|
|
|
|
|
|
|
|
|
|
|
|
19 |
|
|
|
|
44 |
|
|
|
|
|
|
|
|
|
|
|
|
20 |
|
|
|
|
45 |
|
|
|
|
|
|
|
|
|
|
|
|
21 |
|
|
|
|
46 |
|
|
|
|
|
|
|
|
|
|
|
|
22 |
|
|
|
|
47 |
|
|
|
|
|
|
|
|
|
|
|
|
23 |
|
|
|
|
48 |
|
|
|
|
|
|
|
|
|
|
|
|
24 |
|
|
|
|
49 |
|
|
|
|
|
|
|
|
|
|
|
|
25 |
|
|
|
|
50 |
|
|
|
|
|
|
|
|
|
|
|
|
Page 30 |
T1 Networking - Revised April 2000 |
DBS-2.3/9.2-540 |
Loading...