Page 2.7
Chapter 2
Functional Overview
SCHILLER AT-2plus 6-Channel ECG Unit
SERVICE HANDBOOK Issue 1 June 1998
MK 14-12 Modem Interface Board
Future versions of the AT-2plus Memory will include a modem interface board in place of the
RS-232 board. The outgoing data are converted from parallell to serial form and then modulated
for transmission over a telephone line. The incoming data are first demodulated and then converted
from serial to parallell form.