GS1T70-D540F

GS1T70-D540F ISDN DC-DC CONVERTER (FRENCH VERSION) Type GS1T70-D540F Vi 25 to 115 V Vo 5V 40 V Io 90 mA 10,5 mA FEATURES Wide operating line termination battery voltage Peak input overvoltage withstand: 1kV for 1.2/50µs Peak overvoltage withstand on Output 2 (40V): 250V for 10/700µs Positive or negative input voltage polarity Input and output filtering Short-circuit protection on both outputs Input power during shortcircuit within specification Minimum current drain during stand-by condition: 10µA for Vi<18V Undervoltage lock out at 10V Input-output isolation voltage: 10 kV pulse 1,2/50 µseconds Output1-output2isolation voltage: 2000VRMS for 60 seconds Mechanical dimensions (L x W x H): 56 mm x 56 mm x 18 mm (2.2” x 2.2” x 0.71”) DESCRIPTION The GS1T70-D540F converter has been designed for the “U” interface of an ISDN-NTBA (Network Termination Basic Access) system with either 4B3T or 2B1Q standard trasmission. It meets the requirements of the following specifications: EN 60950 CCITT I.430 CCITT G.960 CCITT G.961 ETS 300 002 ETS 300 012 ETS 300 047 (ISDN BASIC ACCESS, Safety and Protection) Two isolated outputs, 5V/90mA and 40V/10.5mA are supplied. The converter offers short-circuit protection (short-circuit on 40V output doesn’t affect 5V output and the input power never exceeds the June 1994 limit of the specification), input either voltage polarity, 80% minimum efficiency at maximum load, input and output filtering to meet very stringent noise requirements. The input and ...