Pin Assignments

Rev. 05.27.08

NTS500 Series

2 of 3

Logic Control

Power failure:

TTL logic signal goes high 100-500 msec after main output.

It goes low at least 4 msec before loss of regulation

Remote on/off:

Requires an external contact closure to inhibit outputs

DC OK:

TTL logic goes high after the output is in regulation. It goes

low when there is loss of regulation.

Remote sense:

Compensates for 0.5 V lead drop min. Will operate without

remote sense connected. Reverse connection protected.

Operating temperature:

0° to 50 °C ambient derate each output as 2.5% per degree

from 50° to 70 °C.

Storage temperature:

-40°C to +85°C

Electromagnetic

susceptibility:

Designed to meet EN61000-4;

-2, -3, -4, -5, -6, -8, -11 Level 3

Humidity:

Operating; non-condensing 10% to 90% RH

Vibration:

Three orthogonal axes, sweep at

1 oct/min, 5 min. dwell at four major resonances

2 G peak 8 Hz to 500 Hz, operational

MTBF demonstrated:

1M hours at full load and 25 °C ambient conditions

Environmental Specifications

Embedded Power for

Business-Critical Continuity

Connector

CN1

PIN 1

Line

PIN 3

Neutral

PIN 5

Ground

SK7

PIN 1

V1 swp

PIN 2

- Remote Sense

PIN 3

+ Remote Sense

PIN 4

5 VSB (standby)

PIN 5

5 VSB return

PIN 6

+12 V

PIN 7

Common

PIN 8

Inhibit

PIN 9

DC power good (DC OK)

PIN 10 Power Fail (POK)

CN403

PIN 1

Ground

PIN 2

A2_out

PIN 3

A1_out

PIN 4

A0_out

PIN 6

PIN 7

PIN 8

n/c

PIN 9

n/c

PIN 10 n/c

Adjustment Potentiometers

P1

+V1 Output adjust

P3

+5 VSB adjust

Mating Connectors

SK4,5,6

Molex 19141-0058

SK7 Control Molex 90142-0010

signals

PINS: 90119-2110

or

Amp: 87977-3

PINS: 87309-8

SK8

Molex 22-01-2025

Pins: 08-52-0123

CN403

JST PHDR-10VS

Pins: JST 5PHD-002T-PO.5-L/P or

Landwin 2050 S1000

Pins: 2053T011P

Astec Connector Kit #70-841-024 includes all

of the above

Notes:

1. Specifications subject to change without

notice.

2. All dimensions in inches (mm), tolerance

is ±.02".

3. Specifications are at factory settings

4. Mounting maximum insertion depth is

0.12".

5. Warranty: 2 year

6. Weight: 3.016 lb. / 1.18 kg.

1

5

610

Ordering Information

Model

Number

Output

Voltage

Minimum

Load

Maximum Load

with Convection

Cooling

Maximum Load

with 30CFM

Forced Air

Ripple

NTS503

12 V

0 A

16.6 A

41.7 A

47 A

±2%

120 mV

NTS505

24 V

0 A

8.3 A

20.8 A

23.4 A

±2%

240 mV

NTS508

48 V

0 A

4.2 A

10.4 A

11.7 A

±2%

480 mV

1. Peak current lasting <30 seconds with a maximum 10% duty cycle.

2. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.

3. Peak-to-peak with 20 MHz bandwidth and 10 μF (tantalum capacitor) in parallel with a 0.1 μF capacitor at

rated line voltage and load ranges.

4. 5 V standby and 12 V fan output cannot be used above 50 °C with convection cooling.