Symmetricom XLi IEEE 1588 User Manual

1

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 

.

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