What is the voltage and polarity needed for AC adapter Xeltek SP611S, SP610P, SP6100 and IS01 ? Updated on August 24, 2015 By admin Comments Off on What is the voltage and polarity needed for AC adapter Xeltek SP611S, SP610P, SP6100 and IS01 ? Author: admin Input: 100-240V/ 60Hz Output: 12V, and 2A Outside ring is + and inside ring is – Was this answer helpful ? Yes (2) / No (0) By admin