OC3-2M IR W/CPU-2 clei The OC3-2M IR UNI/NNI Card with CPU-2 is an ATM interface card operating at the SONET OC3 rate of 155 Mbps, with 32k cell buffering per card. The Intermediate Reach(IR) single mode fiber optical interface has a total loss budget of

OC3-2M IR W/CPU-2 clei The OC3-2M IR UNI/NNI Card with CPU-2 is an ATM interface card operating at the SONET OC3 rate of 155 Mbps, with 32k cell buffering per card. The Intermediate Reach(IR) single mode fiber optical interface has a total loss budget of 12db. The OC3-2M IR is a single port card compliant to the requirements of the ATM Forum UNI Specification (Version 3.1) and the ATM Forum B-ICI Specification (Version 2.0). This card is designed to accept the optional Multi-Service Traffic Shaping Module (MTSM, 90-4724-01) or enhanced Traffic Shaping Module (eTM,90-7695-01) which, when installed,provides enhanced traffic management features. This card is also supported on R2.0 of the 7670 ESE shelf. Note that only the eTM is supported for traffic shaping on the ESE.