Datasheet > GS1T70-D540/2

GS1T70-D540/2

更新时间： 2024-11-14 23:54:07

品牌	Logo	应用领域
其他 - ETC		转换器综合业务数字网 DC-DC转换器
页数	文件大小	规格书
5页	74K
描述
ISDN DC-DC CONVERTER FOR NT

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GS1T70-D540/2 数据手册

GS1T70-D540/2

ISDN DC-DC CONVERTER

PRELIMINARY DATA

Type

out 1 : 5V 72 mA

out 2 : 40V 12 mA

GS1T70-D540/2 28 to 115 V

FEATURES

Wide operating line termination voltage

Positive or negative input voltage polarity

Input and output filtering

Short-circuit protection on both outputs

Input power during shortcircuit within specifica-

tion

Minimum current drain during stand-by condition:

10µA for Vi<18V

Input-Output2 insulation voltage: 3000V_RMSfor

60 seconds

Output1-Output2 insulation voltage: 3000V_RMS

for 60 seconds

Mechanical dimensions (L x W x H): 50.8 mm x

50.8 mm x 18 mm (2" x 2" x 0.71")

DESCRIPTION

In addition, the wide operating input voltage range

allows it to operate within the whole range of LT

(Line Termination) battery voltage and its relevant

line resistance.

The GS1T70-D540/2 converter has been designed

for the “U” interface of an ISDN-NTBA (Network

Termination Basic Access) system with either 4B3T

or 2B1Q standard trasmission.

3000V

isolation voltage for 60 second is pro-

RMS

vided between input to output 2 and between output

1 and output 2. No insulation is provided between

input and output 1.

Two outputs, 5V/72mA and 40V/12mA are sup-

plied.

The converter offers short-circuit protection (short-

circuit on 40V output doesn’t affect 5V output and

the input power never exceeds the limits of the

specification), input either voltage polarity, 80%

minimum efficiency at maximum load, input and

output filtering to meet very stringent noise require-

ments.

The design of the module has been conducted

using, as reference standards, the following:

EN 60950, VDE0878 part 1 class B (EMC),

EN55022 class B (EMC), CCITT 430, ETS 300 012

and ETS 300 047 (ISDN BASIC ACCESS, Safety

and Protection); anyway, please note that no certi-

fication processes have been carried out on the

module itself.

When the input voltage is below 18V, the converter

offers a very high input impedance and a maximum

quiescentcurrent of10µAaccording to thestandard

ETR 080.

20 January 1997

1/5

12 3 4 5

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