Ericsson LBI-39224 manual Multinode Configuration

LBI-39224

Each NIM is assigned a unique site assignment number (1 thru 32) within the CEC/IMC. This number corresponds to and matches the site assignment number set via the 5-bit DIP switch setting on the interface module’s Controller Board. A NIM may be either Audio Board equipped or T1/E1 Interface Card equipped, both situations will be discussed.

Multinode Configuration

NOTE

For this discussion the term "multinode" will be synonymous with distributed multisite network involving multiple IMC networks connected together by Network Interface Modules (NIMs).

Some additional configuration considerations are required when linking two or more IMC networks together for multinode operation. The NIM control data link between the IMC networks must be established prior to NIM channel audio configuration. The NIM on each end of the link must be manually set to equal baud rates; this is performed in the StarGate / Remote CEC / NIM Configuration dialog box as described in DISTRIBUTED MULTISITE / STARGATE CONFIGURATION, beginning on page 3-141. Those nodes (IMC networks) that will make-up the multinode system must have their Group and Unit Databases downloaded from the System Manager. This is accomplished by downloading the System Manager Group and Unit Databases from the System Manager as discussed in SYSTEM MANAGER DATABASE UPLOADS, beginning on page 3-14, and may have already been accomplished during the course of normal CEC/IMC configuration. At the very least the Group and Unit Database download should be verified as being complete.

The CEC/IMC ID ("switch assignment number") must be set at the MOM Controller Board before distributed multisite (multinode) communications will operate correctly. The CEC/IMC firmware will automatically display a CEC/IMC ID number even if one is not set at the MOM; therefore, a displayed CEC/IMC ID does not guarantee that the number has been set. Ensure that this switch assignment number has been set using the DIP switches on the MOM Controller Board as specified in the Distributed Multisite/StarGate Configuration section of

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