... framed N×64kbit/s channel error testing Bit error, coding error, frame error, CRC error and E bit error testing Signal loss alarm, ... Balance bridging resistance: >1200Ω Unbalance bridging resistance: >750Ω.(10) Error code insertion: None, single, or ratio 10-1 ~ 10-7. ... -on state.Dimension and weight;L×W×H: 200×160×42mm;Weight: 950gAmbient parametersOperation temperature: 040Storage Temperature: -30 ...