AWS-8248 User’s Manual 46
Appendix B Power Supply Specifications

B.1 Supported Input Timing Modes

The AWS-8248 off-line switching power supply is ideal for use in work-
stations. It has been designed to meet UL, CSA and TUV safety stan-
dards. It has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment.
Specifications
Input
• Input range: 90~135/180~265 VAC
• Input frequency:47 ~ 63 Hz
• Input current: 6 A @ 115 VAC; 3 A @ 230 VAC
• Efficiency: >65% @ full load, nominal line
• EMI/RFI: FCC Part 15 Class B; VDE 243 Calss B & CISPR 22
Class B

Output load range:

Output Voltage Regulations Minimum load Maximum load Peak load Ripple & Noise
V1 +3.3 V +/-5 % 0 A 14 A - 50 mV
V2 +5 V +/-5 % 1 A 25 A - 50 mV
V3 +12 V +/-5 % 0.2 A 8 A 16 A 120 mV
V4 -12 V +/-10 % 0 A 0.8 A - 120 mV
V5 -5 V +/-5 % 0 A 0.5 A - 100 mV
V6 +5 VSB +/-5 % 0 A 1 A - 50 mV
1. Maximum continuous DC output power shall not exceed 250 W
2. +3.3 V and +5 V total O/P power should not exceed 145 W
3. -12 V and -5 V max. total combined current is 0.8 A
4. M.T.B.F: 100K hours min. at max. load and 25° C ambient
conditions