User manual

TD990200-0ME

Reconfiguring the System

Over time, a Metasys Network that uses Metasys Ethernet Routers

may have to be reconfigured to account for additions and changes to

the system. The reconfigurations that a system may undergo can be

classified as:

• adding a new NCM or PC

• moving an NCM or PC

• adding a new Metasys subnet

• changing the Ethernet network

• changing the layout of the N1 network

This section describes the steps necessary to perform each of these

different types of reconfigurations.

Adding a New NCM or PC to an Existing Subnet

Adding a new NCM or PC to Metasys does not require any changes

to the Metasys Ethernet Router hardware or software. An NCM101/

401 that is added to a Metasys Ethernet Router system must be

Revision K or later. All NCM200s and NCM300s are compatible

with the Metasys Ethernet Router. To add a new NCM or PC to an

existing subnet:

1. Determine the correct subnet and node address for the new

NCM or PC. The subnet address must match the subnet address

for the ARCNET segment to which the NCM or PC connects.

The node address must be unique. You cannot duplicate any

node addresses, even if the two devices reside on different

subnets.

2. If the device is an NCM, determine the correct subnet and node

address for its archive device.

3. Set the subnet and node address for the device as you normally

do.

• For a PC, set the node address using the switches on the

ARCNET card (note: PS/2 system cards do not have

switches, so PS/2 users can ignore this) and specify the

subnet and node addresses in the DDL network

configuration file.