IBM PS/2 N51 SX HMR Manual page 30

4.2 AC Adapter
Input Voltage
Low Range
- Minimum: 90 V ac
- Maximum: 137 V ac.
High Range
- Minimum: 180 V ac
- Maximum: 264 V ac.
Frequency Range
- Minimum: 47 Hz
- Maximum: 63 Hz.
Output Voltage
+20 V dc
Minimum: +19 V dc
Maximum: +21 V dc.
Maximum Current
1.2 A
IBM PS/2 Model N51 SX HMR
AC Adapter
¦ Copyright IBM Corp. 1991
4.2 - 1