MeridianDigital Telephones Page269 of 544
Option11C and 11C Mini TechnicalReference Guide
Data characteristics

The Asynchronous Data Option (ADO) communicates with the data terminal

equipment having characteristics as shown in Table 88.

European version
NPS50220-03L5 Multi-output external power supply
(CPC-# A0336166), conforming to NPS50561 general
requirements and UL1012.
Input: 57 - 53 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)
Table 8 8
Meridian Digital Telephone ADO characteristics
Data type ASCII
Synchronization External
power supply for Meridian
Digital Telephones ADO
Asynchronous, Start-Stop
Number of Bits 8 bits
Parity none (unchecked)
Data rate 300, 1200, 2400, 4800, 9600, 19200 bits per second
(autobaud)
Stop bits 2 bits for 110 bits per second; 1 bit for all other speeds
Transmission Full duplex
Table 8 7
External power supply for Meridian Digital Telephones ADO (Part2 of 2)