GS5AC-40
ISDN AC-DC CONVERTER
PRELIMINARY DATA
Type
GS5AC-40
V
i
180 to 264 V
V
o
I
o
out 1: 40 V 110 mA
out 2: 40 V
10 mA
FEATURES
Large Input voltage range: 180 to 264 V
RMS
Input filter to meet EMI requirements
Peak input overvoltage whitstanding
Input fuse
Input to output insulation
2 insulated outputs:
Vo1 = 35 to 42 V for 鈥漇鈥?interface
Vo2 = 36 to 47 V for external relay and LED driver
鈥漇鈥?interface output characteristics:
Peak output of 8 W for 150 ms
Typical output power: 4,5 W
Output filtering to meet ETSI requirements
Hold up time: 20 ms with 4,5 W output power
Continuous short circuit protection
Peak overvoltage withstand: 250 V for 10/700
碌s
Mechanical dimensions (LxWxH): 80x43x30 mm
DESCRIPTION
The GS5AC-40 converter has been designed for
an ISDN-NTBA (Network Termination Basic Ac-
cess) system with either 4B3T or 2B1Q standard
trasmission.
The converter is able to deliver 40V/110 mA for 鈥漇鈥?/div>
interface and is equipped also with a second, aux-
iliary 40V/10 mA output for relay and LED driving.
The converter offers short-circuit protection on both
outputs (short-circuit on 40V output doesn鈥檛 affect
relay/LED output and the input power never ex-
ceeds the limit of 15 W) and also provides to
remove the auxiliary (relay & LED) output when the
mains is missing, thus allowing the use of a second
鈥漞mergency鈥?voltage source (relay contacts are
released). 3000 V
RMS
insulation voltage for 60
seconds is provided between input and the outputs.
Output 1 and Output 2 share the same common
ground (pin 4 is internally connected with pin 6).
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
fication processes have been carried out on the
module itself.
20 January 1997
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