STM1-2M EL W/CPU-2 (MAU EXCLUDED) The R5.0 STM1-2 Electrical Interface Card with CPU-2 is both a UNI and NNI STM1 ATM interface card operating at the SDH STM1 rate of 155 Mbps, with 32k cell buffering per card. The electrical interface is dual coaxial BNC connectors. The line code is code mark inversion (CMI). The STM1-2 Electrical Interface is a single port card compliant to the requirements of the ATM Forum UNI Specifications (Version 3.1) and the ATM Forum B-ICI Specifications (Version 2.0). Requires a minimum of R elease 3.1 for operational support. 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 requires MAU 90-2322-01 for deployment in 7470 PS-2 shelf or MAU 90-8180-01 for deployment in 7670 ESE shelf. The 90-2322-01 and 90-8180-01 MAUs are not shipped with the STM1-2 card and each must be ordered separately. The STM1-2 Electrical Interface card with CPU-
