STM1-2M EL W/CPU-2 R4.3 The 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 Release 3.1 for operational support. This card is designed to accept the optional Multi-Service Traffic Shaping Module (MTSM, 90-4724-01) which, when installed, provides enhanced traffic management features. Each STM1-2 Electrical Interface is shipped with a MAU 2 Coax Adapter (90-2322-x1). This card variant is shipped with R4.3 S/W.
