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Appendix C: Meridian Modular Telephones add-on modules installation Page 425 of 504
Telephones and Consoles Description, Installation, and Operation
Table 69 lists the input and output requirements for the ADO external power
supply.
Table 69
I/O requirements for ADO external power supply
North American version
NPS50220-03L5 Multi-output external power supply
(A0336823), UL listed and CSA approved
Input: 57–63 Hz 115–132 V AC
Output: +5 V DC, 1.0 A (pin 3 for supply, pin 2 for return)
+12 V DC, 200 mA (pin 6 for supply, pin 1 for return)
–12 V DC, 200 mA (pin 4 for supply, pin 1 for return)
Japanese version
NPS50220-03L8 Multi-output external power supply
(A0336891), Japan Standard (“T” Mark)
Input: 47–63 Hz 85–115 V AC
Output: +5 V DC, 1.0 A (pin 3 for supply, pin 2 for return)
+12 V DC, 200 mA (pin 6 for supply, pin 1 for return)
–12 V DC, 200 mA (pin 4 for supply, pin 1 for return)
European version
NPS50220-03L5 Multi-output external power supply
(A0336166), conforming to NPS50561 general
requirements and UL1012
Input: 57–63 Hz 200–240 V AC
Output: +5 V DC, 1.0 A (pin 3 for supply, pin 2 for return)
+12 V DC, 200 mA (pin 6 for supply, pin 1 for return)
–12 V DC, 200 mA (pin 4 for supply, pin 1 for return)