The Wandel & Goltermann PRA-1A is a Frame Analyzer for 2048-kbit/s-systems. Features Commissioning and maintenance of 2048 kbit/s multiplex equipment and communications systems. Two independent receivers and a generator in a single instrument for flexible analysis of 2048 kbit/s signals. Co-directional 64 kbit/s interface. Detailed recording of errors and alarms for easier assessment of transmission quality. In-service monitoring of 2 Mbit/s links. Built-in printer. Signalling analysis in the forward and backward directions. Worldwide instrument of reference. Options BN2016/00.31 Transmitter with 2048 kbit/s BN2016/00.02 Bit Error Rate Test BN2016/00.33 CRC-, Sa- and E-Bits-Module