FEATURES
COMBINED AC+DC CONVERTER FOR ISDN
NT1+ APPLICATION
Uo INTERFACE (DC) AND MAIN (AC) IN-
PUTS TO ENABLE NPM (Normal Power
Mode) AND RPM (Restricted Power Mode)
CONDITIONS
INPUT FILTER TO MEET EMC REQUIRE-
MENTS
5 INSULATED MAIN OUTPUTS
PEAK INPUT OVERVOLTAGE WITHSTAND-
ING
INPUT FUSE ON AC MAIN INPUT
INPUTS TO OUTPUTS INSULATION
AUXILIARY LOGIC OUTPUT TTL-COMPAT-
IBLE FOR NPM/RPM MODE INDICATION
(EM SIGNAL & GREEN LED). 3mA OUTPUT
SOURCE CURRENT
AUXILIARY LOGIC OUTPUT TTL-COMPAT-
IBLE FOR U-INTERFACE DETECTION (RED
LED). 3mA OUTPUT SOURCE CURRENT
INTERNAL RELAY FUNCTION FOR Vo1 PO-
LARITY REVERSE
ANALOG OUTPUTS EMERGENCY CONDI-
TION PROGRAMMABLE VIA EXTERNAL
COMMAND, TTL COMPATIBLE, 1mA SINK
CURRENT
U-INTERFACE ACCORDING TO ETR 080
WITH EXTERNAL CAPACITOR </= 2.2 uF
S-INTERFACE ACCORDING TO ETS 300
012
SAFETY COMPLIANCE ACCORDING TO
EN60950
MECHANICAL DIMENSIONS (LxWxH):
96x58x26.6
June 2000
PRODUCT VIEW
ORDERING NUMBER: GS-NT1+/INF2
NT1+/INF2
Power Management Module for
ISDN NT1+
Rev. 01
Type
Vi
Vo
Po
+/-40V
4.5W
180<VI1<264Vrms
+5V
720mW
NT1+/INF2
-22V
900mW
40<Vi2<120 Vdc
-50V
100mW
-130V
700mW
1/7
DESCRIPTION
The NT1+/INF2 Power Management Module is a
comprehensive solution for ISDN-NT1 "Plus"
(Network Termination Basic Access type Plus)
equipment, combining both AC-DC and DC-DC
functions. This version is suitable for Infineon
ISDN U/S chip set.
The NT1+ Power Management Module (NT1+
PMM) provide the NT1+ equipment with all nec-
essary supply voltages as well as control signals
to operate in the different operating modes, typi-
cally the Normal Power Mode (NPM) and the Re-
stricted Power Mode (RPM).
Connected to the main, Input 1 is the AC input
power to the NT1+ PMM, source of the whole
necessary power in normal operating mode,
namely in NPM. Input 2 is the DC power source
when in RPM, therefore to connect to the U-Inter-
face.
When the main is available (230 Vac in this ver-
sion) NT1+ PMM operate in Normal Power Mode,
therefore it supply +40V (output 1) to the S-Inter-
face being the output power 4.5 W. Output 2 de-
livers 5V (up to 720mW) for the logics and output
3 delivers -22V (up to 900 mW). Out voltage 4 is
-50V with 100 mW output power. Last, output 5
delivers -130V and the output power can reach
peaks of 700 mW.
When the main is missing, the module remains
active but only in Restricted Power Mode (RPM).
The only power source in RPM is the Input 2, the
U-Interface (Vi2). Therefore in RPM the following
condition apply to outputs 1 and 2: output 1 re-
verses the voltage (it becomes -40V) and the
maximum power Pout is reduced to 420 mW.
P2max is reduced to 450 mW typically, however
the output power available at outputs 2,3,4,5
mainly depend on input power available from the
"U Interface" Vi2, therefore subject of variation as
per local application and regulation.
In RPM it is also possible to set a different "emer-
gency condition" setting HIGH the auxiliary input
3 (analog emergency input, Vin3). In this case
Pout1 is reduced to 25mW, voltage level being
-40V.
The following tables give you details of the vari-
ous parameters in the 3 different operating
modes, namely NPM, RPM with Vi3 LOW, RPM
with Vi3 HIGH.
Availability of the input AC main is also acknow-
ledged by a specific auxiliary output (out 6, "EM
signal"), a TTL-compatible signal set HIGH (to
logic level "1") when the main is available and
LOW when the AC main is missing.
The presence of the "U" is optionally acknow-
ledged by an other auxiliary output (out 7, RED
LED) that is HIGH only when Vin2 > 40V.
The NT1+ PMM provides double insulation (3000
Vrms) between the inputs (1 and 2), and among
the input 1 and all the outputs. Basic insulation
exists among Out1 and all other outputs. The
other outputs (including the 2 auxiliary outputs)
and the input 3, share the same common ground.
Double insulation (2000 Vrms) is provided among
Input 2 (DC "U") and all outputs.
The NT1+ Power Management Module operate
in the range -10 to +70
o
C, storage temperatures
in the range -40 to +85
o
C are allowed.
NT1+/INF2
2/7
ELECTRICAL CHARACTERISTICS when in NPM (Tamb=25
o
C, unless otherwise specified.)
NPM Standard Condition: Vin1 = 180 to 264 Vrms Vin2 = 40 to 120 Vdc
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vi1
AC Input Voltage 1
180
264
Vrms
Vi2
DC Input Voltage 2
any polarity
40
120
Vdc
fi
Vi1 Input Frequency
Vi1 = 230 Vrms
43
56
Hz
Vi1st
Start up Input 1 voltage
Output parameters as per NPM
Standard Condition
175
Vrms
Pi1
Input 1 Apparent Power
NPM Standard Condition
15
VA
Vi2nd
Start up Input 2 voltage
Output parameters as per Std. Condition
40
Vdc
Vo1
Output Voltage 1
Standard condition
34
40
42
V
Vo2
Output Voltage 2
Standard condition
4.75
5
5.25
V
Vo3
Output Voltage 3
Standard condition
-21
-22
-25
V
Vo4
Output Voltage 4
Standard condition
-48
-50
-65
V
Vo5
Output Voltage 5
Standard condition
-125
-130
-165
V
Vo6
Auxiliary Output 6 (EM)
Standard condition
3.75
5
5.25
V
Vo7
Auxiliary Output 7 (red LED)
Standard condition
3.75
5
5.25
V
Vor1,3,4,5
Output Ripple voltage 1,3,4,5
Standard condition BW: 0-20 MHz
100
mVrms
Vor2
Output Ripple voltage 2
Standard condition BW: 0-20 MHz
30
mVrms
Po1
Output Power 1
Std. condition according to ETS300 012,
E5.1.5, E5.1.6, E5.1.7 (n=4)
4.5
W
Po2
Output Power 2
Standard condition
720
mW
Po3
Output Power 3
Standard condition
900
mW
Po4
Output Power 4
Standard condition
100
mW
Po5
Output Power 5
During 1 s, 40% of the time during the
ring period at the analog interface. The
output is current limited at 2.5 mA +/- 0.2
mA, with 100uF capacitor
700
mW
Vi1th
NPM => RPM mode Vi1
threshold
Output parameters as per Standard
Condition
160
Vrms
Ttr
Transition time
transition NPM => RPM and vice versa
according to ETS300 012, E5.1.3 (n=4)
5
ms
Vi1pk
Input 1 Transient overvoltage
t = 10/700 us as per 1TR9 Dec. 96
2000
V
Vi1pk
Input 1 Transient overvoltage
common mode test according to
ETS300 047-5p5.6
2500
V
Vi1pk
Input 1 Transient overvoltage
impulse transfer from main according to
ETS300 047-5p5.7.1
2500
V
Vo1pk
Output 1 Transient overvoltage
t = 1,2/50 us
500
V
Vis
Insulation Voltage
Input 1 to outputs and input 1 to input 2,
t=60s reinforced insulation as per
EN60950
3000
V
Vist
Insulation Voltage
Input 1 to outputs t=10/700 us (pulse)
4000
V
th
Hold-up time
Vin = 180 Vrms Standard Condition
20
ms
MTBF
Mean Time Before Failure
Ground Fixed, MIL-HDBK-217E
1
Mh
Top
Oper. Ambient Temperature
-10
+70
o
C
NT1+/INF2
3/7
ELECTRICAL CHARACTERISTICS when in RPM (Tamb=25
o
C, unless otherwise specified.)
RPM Standard Condition: Vin1 < 100 Vrms Vin2 = 40 to 120 Vdc Vin3 = LOW
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vi1
AC Input Voltage 1
100
Vrms
Vi2
DC Input Voltage 2
any polarity
40
120
Vdc
Vi2nd
Start up Input 2 voltage
Output parameters as per Std. Condition
48
Vdc
Vo1
Output Voltage 1
Standard condition
-34
-40
-42
V
Vo2
Output Voltage 2
Standard condition
4.75
5
5.25
V
Vo3
Output Voltage 3
Standard condition
-21
-22
-25
V
Vo4
Output Voltage 4
Standard condition
-48
-50
-65
V
Vo5
Output Voltage 5
Standard condition
-125
-130
-165
V
Vo6
Auxiliary Output 6 (EM)
Standard condition
3.75
5
5.25
V
Vo7
Auxiliary Output 7 (red LED)
Standard condition
3.75
5
5.25
V
Vor1,3,4,5
Output Ripple voltage 1,3,4,5
Standard condition BW: 0-20 MHz
100
mVrms
Vor2
Output Ripple voltage 2
Standard condition BW: 0-20 MHz
30
mVrms
Po1
Output Power 1
Std condition according to ETS300 012,
E5.1.1, E5.1.4.1, E5.1.4.2, E5.1.5.3
(n=4)
420
mW
Po2
Output Power 2
Standard condition
450
mW
Po3
Output Power 3
Standard condition
tbd
mW
Po4
Output Power 4
Standard condition
tbd
mW
Po5
Output Power 5
Standard condition
tbd
mW
Vi1st
RPM => NPM mode Vi1
threshold
Output parameters as per Standard
Condition
175
Vrms
Ttr
Transition time
transition NPM => RPM and vice versa
according to ETS300 012, E5.1.3 (n=4)
5
ms
Vi1pk
Input 1 Transient overvoltage
t = 10/700 us as per 1TR9 Dec. 96
2000
V
Vi1pk
Input 1 Transient overvoltage
common mode test according to ETS300
047-5p5.6
2500
V
Vi1pk
Input 1 Transient overvoltage
impulse transfer from main according to
ETS300 047-5p5.7.1
2500
V
Vo1pk
Output 1 Transient
overvoltage
t = 1,2/50 us
500
V
Vis
Insulation Voltage
Input 1 to outputs and input 1 to input 2,
t=60s reinforced insulation as per
EN60950
3000
V
Vist
Insulation Voltage
Input 1 to outputs t=10/700 us (pulse)
4000
V
th
Hold-up time
Vin = 180 Vrms Standard Condition
20
ms
MTBF
Mean Time Before Failure
Ground Fixed, MIL-HDBK-217E
1
Mhou
rs
Top
Oper. Ambient Temperature
-10
+70
o
C
Tstg
Storage Temperature Range
-40
+85
o
C
NT1+/INF2
4/7
ELECTRICAL CHARACTERISTICS when in RPM (Tamb=25
o
C, unless otherwise specified.)
RPM Standard Condition: Vin1 < 100 Vrms Vin2 = 40 to 120 Vdc Vin3 =HIGH
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vi1
AC Input Voltage 1
0
100
Vrms
Vi2
DC Input Voltage 2
any polarity
40
120
Vdc
Vi2nd
Start up Input 2 voltage
Output parameters as per Std. Condition
40
Vdc
Vo1
Output Voltage 1
Standard condition
-34
-40
-42
V
Vo2
Output Voltage 2
Standard condition
4.75
5
5.25
V
Vo3
Output Voltage 3
Standard condition
-21
-22
-25
V
Vo4
Output Voltage 4
Standard condition
-48
-50
-65
V
Vo5
Output Voltage 5
Standard condition
-125
-130
-165
V
Vo6
Auxiliary Output 6 (EM)
Standard condition
0
1.25
V
Vo7
Auxiliary Output 7 (red LED)
Standard condition
3.75
5
5.25
V
Vor1,3,4,5
Output Ripple voltage 1,3,4,5
Standard condition BW: 0-20 MHz
100
mVrms
Vor2
Output Ripple voltage 2
Standard condition BW: 0-20 MHz
30
mVrms
Po1
Output Power 1
Standard condition
25
mW
Po2
Output Power 2
Standard condition
450
mW
Po3
Output Power 3
Standard condition
tbd
mW
Po4
Output Power 4
Standard condition
tbd
mW
Po5
Output Power 5
Standard condition
tbd
mW
Vi1st
RPM => NPM mode Vi1
threshold
Output parameters as per Standard
Condition
175
Vrms
Ttr
Transition time
transition NPM => RPM and vice versa
according to ETS300 012, E5.1.3 (n=4)
5
ms
Vi1pk
Input 1 Transient overvoltage
t = 10/700 us as per 1TR9 Dec. 96
2000
V
Vi1pk
Input 1 Transient overvoltage
common mode test according to ETS300
047-5p5.6
2500
V
Vi1pk
Input 1 Transient overvoltage
impulse transfer from main according to
ETS300 047-5p5.7.1
2500
V
Vo1pk
Output 1 Transient
overvoltage
t = 1,2/50 us
500
V
Vis
Insulation Voltage
Input 1 to outputs and input 1 to input 2,
t=60s reinforced insulation as per
EN60950
3000
V
Vist
Insulation Voltage
Input 1 to outputs t=10/700 us (pulse)
4000
V
th
Hold-up time
Vin = 180 Vrms Standard Condition
20
ms
MTBF
Mean Time Before Failure
Ground Fixed, MIL-HDBK-217E
1
Mhou
rs
Top
Oper. Ambient Temperature
-10
+70
o
C
Tstg
Storage Temperature Range
-40
+85
o
C
NT1+/INF2
5/7
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