The Keysight J3759B E3/DS3 Cells and Frames Module allows network managers and troubleshooters in complex ATM and WAN environments to quickly solve high-speed ATM/WAN access and internetworking problems. The module operates with Keysight Advisor ATM/WAN platforms and supports E3/DS3 multiple line interfaces for monitoring and analysis of cell-based ATM and frame-based networks, including frame relay and other HDLC-based networks.