InteliLite
NT
– AMF20/25, SW version 2.2, ©ComAp – September 2014 117
IL-NT-AMF-2.2-Reference Guide.pdf
3.
IL-NT S-USB
(USB easily removable service module)
The RS232 or USB interface uses COM1 port of the controller. The RS485 uses COM2.
N
OTE
:
Use a cross-wired serial communication cable with DB9 female connectors and signals Rx, Tx, GND
for a RS232 connection.
Hint:
Make sure the grounding system on controller and PC
– COM port (negative of the PC DC supply) are
identical
– before the first direct connection. There must not be any voltage between these two points
otherwise the internal reversible fuse in controller burns out. The simple solution is to assure, that the
PC supply 240/20V is ground free (GND terminal is not connected).
5 - GND
2 - RxD
3 - TxD
PC
5 - GND
2 - RxD
3 - TxD
R
S
2
3
2
R
S
2
3
2
230 VAC
0
V
D
C
CONTROLLER
+
-
Battery
Required the same
voltage potential
between GND‘s
RS 232
Modem connection
A PC can be connected to the controller also remotely via modems. Either an analog, GSM or ISDN
modem must be connected to the RS232 interface and the setpoint
COM1 Mode
must be set to
MODEM.
GSM
MODEM
ANALOG
MODEM
IL-NT RS232
IL-NT RS232-485
RS232
IL-NT RS232
IL-NT RS232-485
RS232
BTS / Mobile
provider
LAN / WAN /
INTERNET
Ethernet
RJ45
LAN / WAN /
INTERNET
Ethernet
RJ45
GSM
MODEM
IL-NT RS232
IL-NT RS232-485
RS232
OR
ANALOG
MODEM
IL-NT RS232
IL-NT RS232-485
RS232
OR
GSM
MODEM
ANALOG
MODEM
M
ODEM CONNECTION TYPES