Power Supply Module Model :- PS-21 INPUT :- 13.8V;2.0A Output :- +5V, +12V, +24V (opt.) Isolation :- 3KV AC input / DC output LED indicators :- DC supply , Bat., Aux. converter Connectors :- Removable AC/DC connectors Operating Temperature :- -20 to 70 Deg C Storage Temperature :- -40 to 85 Deg C