... E1 Test: E1 interface bit error test IP Ping test V interface Model: BER-1560 Data Transmission Analyzer Overview:BER-1560 ... /s to 2048kb/s with supported interfaces ofG.703, V.24/RS232, V.35, V.36/RS449, X.21, EIA-530/530A. Its characteristic ... insertion- Performance analysis according to ITU-T recommendation V series interfaces testing- V.24/RS232, V.35, V.36/RS449, EIA-530/530A, X.21 ...