Cisco 4 Port Inverse Multiplexing Network Module ATM-T1 4T1-IMA

by Cisco


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Cisco ATM-T1 4T1-IMA 4 port Inverse Multiplexing Adapter Network Module product information.

The NM-4TI-IMA is a Cisco network module for Cisco 2600, 3600 and 3700 Series. This 4-port T1 ATM network module with Inverse Multiplexing over ATM (IMA).

  • Supports four T1/E1 ATM ports
  • Support for ATM Forum IMA Version 1.0
  • Up to 16-Mbps full-duplex bandwidth with an 8-port E1 IMA network module
  • Supports UBR, VBR-rt, VBR-nrt, and ABR ATM CoS
  • Maximum of four active IMA groups on both four- and eight-port versions
  • Integrated CSU/DSU on T1 versions
  • Integrated DSU for E1 versions
  • ATM Forum User Network Interface (UNI) 3.0, UNI 3.1, and UNI 4.0 signaling
  • ATM Adaptation Layer 5 (AAL5)
  • Permanent Virtual Circuits (PVCs) and Switched Virtual Circuits (SVCs)
  • Request For Comments (RFC) 1483 support for multiple encapsulations over ATM
  • RFC 1577 support for Routing over ATM
  • Maximum of 256 Virtual Circuits (VCs) per interface with up to 1024 simultaneous reassemblies per card
  • Maximum differential delay tolerance of up to 200-ms
  • F4 and F5 Operation, Administration, and Maintenance (OAM) cell support
  • Cyclic Redundancy Check(CRC)32 error checking of AAL5 and CRC10 checking of operations and management (OAM) cells

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