Advantech Modem ADAM-4550 사용자 설명서

14

ADAM-4550 User's Manual

Connect one ADAM-4550 to the controlling PC’s
serial port with the RS-232 cable.  Connect re-
mote ADAM-4550 units to remote data units
through the RS-485 bus.

Configure each ADAM-4550 unit by following the
procedures in section A.

Start the ADAM Configuration and Diagnostic
Program on the controller PC.  Select the Set-
ting... menu and choose Local.  In the dialog
box, select the proper COM port and set the baud
rate to the one configured for the ADAM-4550.

Make sure all ADAM-4550 units are powered
off.  From the ADAM Configuration and Diag-
nostic Program, select the Connections menu
and choose Connect. Turn on power to the
ADAM-4550 connected to the controlling PC and
the green LED should blink slowly.  Turn on the
power to the remote ADAM-4550 units one by
one.  The green LED on the ADAM-4550 that is

connected to the controlling PC, as well as the
green LEDs on the remote ADAM-4550 units
should now be in a rapid blinking mode.  This
indicates that the RF links between the control-
ling unit and all the remote units have been es-
tablished.

It is important that during the initial set-
up, the ADAM-4550 unit connected to
the controlling PC must be powered up
before the other remote ADAM-4550
units are powered up.  Moreover, any
devices connected to an ADAM-4550
through RS-232 must be powered on be-
fore the ADAM-4550 is powered on.
This will allow the ADAM-4550 to auto-
matically detect the connected device
and set itself into proper DCE or DTE
modes.