Symmetricom Comprehensive Guide to XLi Power Supply Features

Models: XLi IEEE 1588

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Standard 110 VAC Power Supply

The XLi’s internal fault detector can monitor the three output voltages from the primary and the secondary power supplies. With the Primary Power or Secondary Power indicators in F73 enabled, a 10% decrease in any of the output voltages triggers an alarm. See “F73 – Alarm Control / Status” on page 69.

Warning: Ensure that a disconnect device, such as a switch, with the appropriate voltage/current rating, is provided when operating/installing the XLi.

Warning: Prior to servicing the interior of a unit with dual power supplies, remove both power cords.

Input connector:

IEC 320 type

Input voltage range:

Universal, 90 – 260 VAC and 110 – 370 VDC

Input frequency range:

47 Hz – 440 Hz

Isolation, ground:

For 110-370 VDC operation, the input is fully floating. Either

 

input polarity may be strapped to chassis ground.

Isolation:

1,500 VAC, input to ground

Output Specifications:

+5.2 V (5.0 to 5.4 V), 25 watts, 0 to 5 amps

 

+12 V (11.4 to 12.6 V), 45 watts, 0 to 3.8 amps

 

-12 V (–11.4 to –12.6 V) 32 watts, 0 to 2.7 amps

Fan:

Exhaust 3-6CFM

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XLi IEEE 1588 Clock

997-01510-03, Rev. C, 12/12/2006

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Symmetricom XLi IEEE 1588 manual Standard 110 VAC Power Supply