600  - 600 /150  Isolation Transformer - Used to provide isolation betweem Telecom Australia lines and mains operatedequipment..Austel Approved - Impedance: 600  line, 600  or 150  Equip. - Turns Ratio: 1: 1 - Max Level: +20dBm @ 200Hz - Insertion Loss: 1dB max @ 0 dBm - Freq Response: 200Hz- 3kHz± 1dB, 0dBm, 0DC - Return L oss: <15dB,200Hz-3kHz - Max Unbal. DC: 5mA - Proof Test: 3.5Kv RMS - (HWD): 21 x 26 x 19mm - Weight: 25 Grams