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Page 268 of 544 Meridian Digital Telephones
553-3011-100 Standard 14.00 January 2002
Data
If the Asynchronous Data Option (ADO) is installed, an external power
supply is needed in addition to the power from the line (see Table ). A 110 V
AC 60 Hz, 100 V AC 50/60 Hz or a 220 V AC 50 Hz multi-output power
supply unit provides nominal voltages of +5 V, +12 V and -12 V DC. The
power supply connects to the back of the telephone through a 5-pin Molex
power connector.
If the AC power supply fails, data calls cannot be processed. All external
power supplies are equipped with short circuit and thermal shutdown
protection.
The following units are available:
Table 87
External power supply for Meridian Digital Telephones ADO (Part 1 of 2)
North American version
NPS50220-03L5 Multi-output external power supply
(CPC-# 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
(CPC-# 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)