Acterna puts the power to provision, troubleshoot and maintain DS0 to OC-48 service in your hands-minimizing lost revenue on your network with the SONET Services Module. Comprehensive testing with multi-rates, multi-services, and multi-modes Easy-to-use, touch-screen graphical user interface (GUI) simplifies and expedites testing. Engineered for the field with rugged construction, lightweight design, and battery-powered operation. Modular TestPad 2000 architecture enables up-to-date support for established and emerging technologies in a single platform. Automated testing features minimize training costs and testing complexity. emote Control functionality using the module's GUI. Perform end-to-end BER testing using a wide range of stress test patterns Analyze network performance by simulating abnormal conditions and inserting various errors and alarms Perform in-service monitoring of the circuit under test to ensure quality of service. Verify proper provisioning of network multiplexers and demultiplexers. Qualify protocol services such as ATM, GR-303, and ISDN, and decode protocol messages. Perform bulk payload testing on SDH circuits at the STM-1c/4c/16c rates. Multirate transmission testing from DS0 to OC-48c in a single hand-held unit. Multiservice testing capabilities including ATM, GR-303, ISDN, signaling, voice frequency (VF), and digital data service (DDS). Ability to manipulate bytes in the SONET overhead. Multiple operation modes to terminate and monitor circuits from various network access points.. Application-driven icons, auto configuration, dual PCMCIA slots, built-in microphone, speaker and additional handset port. VT100 emulation