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Cisco Broadband Network Module expansion module
Model: AX-BNM-T3/B-RF
Cisco Broadband Network Module - Expansion module - ATM - T-3 - refurbished
The BNM provides the trunk interface to an ATM device. In addition to transferring cells to and from the ATM platform, the BNM module polls each of the service modules to control access to the backplane. Each MGX 8220 edge concentrator must have at least one BNM and can be configured with an identical spare BNM.