Cisco (NM-1A-OC3MM) Expansion Module

Three new 155 Mbps ATM OC-3 network modules are available for the 3600 series with Cisco IOS release 12.0(3)T. These network modules support STS-3c and STM-1 framing standards over Multimode Singlemode Intermediate reach or Singlemode Long reach fiber optic interfaces. All three versions consist of a single-port network module with SC connector types that support ATM Forum standard AAL5 for data only traffic. Voice-over-IP (VoIP) and H.323 over ATM can also be supported with VBR-rt Class of Service using SVC`s with the currently available analog Voice/Fax network modules and Voice Interface Cards.The OC-3 ATM network modules are only supported on the 3600 Series. 12.0(3)T or above Cisco IOS Plus feature sets are required to support the ATM network modules. A maximum of one ATM OC-3 network module is recommended on the 3660 3640 or 3620. There are no additional Flash or DRAM memory requirements other then minimum memory requirements specified for the Cisco IOS 12.0(3)T Plus feature sets. The ATM OC-3 network m