- LG Software Innovations Coffeemaker User Manual
Table Of Contents
- Title Page
- Revision history
- Contents
- About this guide
- Description
- System requirements
- List of ITG ISDN components
- Ordering rules and guidelines
- ITG ISL Trunk card description
- ITG ISL Trunk card physical description
- ISDN Signaling Link
- Dialing plans
- Quality of Service
- Fallback to alternate facilities
- Type of Service
- Fax support
- Remote Access
- Per-call statistics support using RADIUS Client
- SNMP MIB
- Codec profiles
- Security passwords
- ITG Engineering Guidelines
- Introduction
- Network engineering guidelines overview
- ITG traffic engineering
- Configuration of Meridian 1 routes and network translation
- Assess WAN link resources
- QoS Evaluation Process Overview
- Set QoS
- Measure intranet QoS
- Implement QoS in IP networks
- ITG Trunk DSP profile settings
- Post-installation network measurements
- Estimate QoS level
- ITG MAT PC management configuration
- Install and configure ITG ISL Trunk node
- Before you begin
- Installation Procedure Summary
- Create the ITG Trunk Installation Summary Sheet
- Install and cable ITG trunk cards
- Install NTCW84JA Large System I/O Panel 50-Pin filter adapter
- Install NTMF94EA and NTCW84KA cables
- D-channel cabling for the NT0961AA 24-Port ITG Trunk card
- Set NT6D80 MSDL switches
- Install filter and NTND26 cable (for MSDL and DCHIP cards in same Large System equipment row)
- Install filter and NTND26 cable (for MSDL and DCHIP cards in different Large System equipment rows)
- Configure ITG Trunk data on the Meridian 1
- Configure dialing plans within the corporate network
- Configure ITG Trunk data on MAT
- Transmit ITG trunk card configuration data from MAT to the ITG trunk cards
- Set date and time for the ITG ISL Trunk node
- Change the default ITG shell password to maintain access security
- Change default ESN5 prefix for non-ESN5 IP telephony gateways
- Check card software
- Configure MAT Alarm Management to receive SNMP traps from ITG ISL Trunk cards
- Make test calls to the remote ITG nodes
- Upgrade an ITG Trunk 1.0 node to support ISDN signaling trunks
- Upgrade procedure summary
- Before you begin
- Install the DCHIP hardware upgrade kit
- Upgrade the 8-port ITG basic trunk software to ITG ISL trunk software
- Remove ITG 1.0 configuration data from Meridian 1
- Configure the Meridian 1 ITG ISL Trunk data: upgrade considerations
- Verify ROM-BIOS version
- Upgrade Troubleshooting
- OA&M using MAT applications
- OA&M using the ITG shell CLI and overlays
- Maintenance
- Appendix A: Calbe description and NT8D81BA cable replacement
- NTMF94EA E - LAN, T - LAN and Serial Port cable
- NTCW84KA E-LAN, T-LAN, DCH & Serial cable
- NTAG81CA Faceplate Maintenance cable
- NTAG81BA Maintenance Extender cable
- NTCW84EA DCH PC Card Pigtail cable
- NTMF04BA MSDL extension cable
- NTCW84LA and NTCW84MA upgrade cables
- Prevent ground loops on connection to external customer LAN equipment
- Replace cable NT8D81BA with NT8D81AA
- Tools list
- NT8D81BA cable removal procedures
- Appendix B: Environmental and electrical regulatory data
- Appendix C: Subnet mask conversion from CIDR to dotted decimal format
- Appendix D: Configure a Netgear RM356 modem router for remote access
- Index
- Back

Description Page 33 of
378
ITG Trunk 2.0 ISDN Signaling Link (ISL) Description, Installation and Operation
Card combinations
The Leader and DCHIP, or Follower and DCHIP, functions can reside on a
single card or multiple cards. If a Follower card is equipped with a DCH PC
card, it can function as a DCHIP ITG Trunk card. As a ITG Trunk node
becomes larger with more trunk traffic, load balancing should be configured.
When load balancing is required, the Leader and DCHIP functionality are
placed on separate cards which are assigned the least call traffic. For the
largest ITG Trunk nodes and networks, the Leader and DCHIP cards can be
partially configured with trunk ports or have no trunk ports at all.
An example configuration that allows for redundancy and backup is the
following:
• Card 1: Leader and DCHIP #1
• Card 2: Backup Leader and DCHIP #2
• Card 3: Follower #1 – 24 trunks connected with DCHIP #1
• Card 4: Follower #2 – 24 trunks connected with DCHIP #2
To support more trunks, more DCHs can be added. Each DCHIP card can
support a maximum of 15 NT0961AA 24-Port Follower cards. This limit is
due to the maximum limit of 382 trunks in an ISL route.
Note: Each DCHIP controls a separate group of Follower cards. If a
DCHIP fails, its associated Followers are removed from service as well.
For very large nodes, it is recommended that Follower cards be spread
across multiple DCHIPs, in order to provide some resiliency by allowing
the ITG node to continue handling calls if one DCHIP fails.
A DCHIP card and all of the ITG ISL Trunk cards connected with it belong
to one Leader card. This means that the cards also belong to a single
customer. The group of ITG ISL Trunk cards connected with one Leader is
referred to as an ITG Node. If a single Meridian 1 system has multiple
customers requiring IP trunk connectivity, a separate ITG node is required for
each customer. Multiple DCHIPs can be configured for each node.
Note: All DCHIPs in an ITG node must be configured with the same
DCH protocol. If the user wants to use multiple DCH protocols, the user
must configure multiple ITG nodes.