Operating frequency range for STIP?

[sahadat]

 I want to know that what is the frequency range for operating the SDS Tool interface panel (STIP)? We have two units one with 110 V with 60 Hz and one with 110 & 220 V with 60 Hz frequency. is there any range or limitation of frequency on the operation of STIP?
Can we operate STIP with 110 or 220 V with 50 Hz Frequency?
and does this frequency change will effect the tool power up operation or data transmission ( telemetry).

[Jerry]

The panels are wired for either 110 VAC or 220 VAC, not for both. 50 to 60 Hz will work on either panel.