Campbell Scientific RF400/RF410/RF415 Spread Spectrum Radio/Modem - Manual (Page 3)

– CAUTION –
Where an AC adapter is used, CSI recommends
Item # 15966. This AC adapter is included as part of
Item # 14220 RF400 Series Base Station Cable/Power Kit.
Any other AC adapter used must have a DC output not
exceeding 16.5 Volts measured without a load to avoid
damage to the RF400 Series radio!
Over-voltage damage is not
covered by factory warranty!
(See Power Supplies, Section 4.2 for AC adapter requirements)
Power plug polarity