| Certifications | UL1950 Recognized; CSAC22.2 No. 950 and CSAC22.2 No. 234 certified; licensed by TUV to EN 60950 and DIN VDE 0805. |
| Meets | Bellcore’sTechnical Reference TR-TSY00 1003, Issue 1, May 1990, Generic Requirements for Embedded DC to DC Converters & Bellcore’s T echnical Advisory, T A-NWT-001089, Issue 1, AUG 90 for input conducted RFI. |
| DC Input | Nominal: -48VDC or -60VDC (optional), Operating: -42V to -56V, or -42V to -75V(optional). |
| Input Protection | Reverse (IOOV) & under-voltage protection. The under and over voltage thresholds are -40V and -58V (-40V and -77V), respectively |
| Fault Reset Time | A latched fault shut-down requires an interruption of the DC input for one second to reset or cycling of R.O.F. |
| Efficiency | The efficiency is greater than 75% at full load. |
| Fusing | The supply is fused internally with a 20A, 250VAC fuse with a DC interrupting rating of 10,000 A at 125VDC. |
| Inrush Current | Inrush current will be less than 10 A peak, followed by an exponential decay with a time constant of less than 250mSec. |
| Shut-down Input | An optional input is available to force latched shut-down for remote over temperature or fan failure detection applications (100Ω PTC, normally closed contact or open collector gate required). The DC input (or optional ROF) must be recycled to reset. |
| Output Protection | All outputs are fully protected . The DC input or R.O.F. must be recycled to reset fault shut-down. |
| Remote ON-OFF | Logic level remote power ON-OFF capability is available. The input is TTL compatible, or it may be connected to a switch or open collector gate without pull-up. |
| Dynamic Load | A 7 Amp step (or 70% of the full load current, whichever is less) on the +I2V rail results in an output voltage transient of less than 3%. |
| Start Up | Turn on delay at nominal input is about 3 seconds. Output rise time is below 50 mS and is under control of a soft start circuit, with overshoot under 2%. |
| Temperature | Operating: 5’C to 50’C with minimum 35 CFM airflow lengthwise at full rated load. Non-Operating: -5oC to 75oC. |
| Remote Sense | Compensates up to 0.25V total on the +5V channel. |
| Power On Reset | An open collector, TTLcompatible, active low signal gives a power turn-on reset for typically 250mS; other delay times are available. |
| MTBF | The power supply has an MTBF greater than 200,000 hours at 30’C. |
