Operating Modes and Character Recognition
© Siemens AG 2002 All Rights Reserved 6NH7811-0AA22
MD2 Modem (07/2002)
4-3
4.1 MD2 Operating Modes
Overview
The MD2 modem uses a variety of operating modes which on the one hand
enables it to be optimally adapted to the connected data terminal equipment (DTE)
and on the other hand increases its maximum transmission range (through the
repeater operating mode). Test operating modes are also available to carry out
function tests of the MD2 or measure the line quality.
The MD2 modem provides the following operating modes:
· Normal
· Normal with DTR/RTS on
· Repeater
· RS485 port
· Signal refresh off
· Test operating mode Test f
L
· Test operating mode Test f
H
· Test operating mode Test f
baud
· Test operating mode Test f
H constant
· Test operating mode Test send
· Test operating mode Test send RS485
· Test operating mode Test receive
The setting for the operating mode is made on switches 1 to 4 of the 10-pin DIL
switch which can be accessed from above through the housing grid.