22
GETTING TO KNOW YOUR IVH-9000
©Vecow IVH-9000 User Manual
2.3.4 Serial Port
Serial
Port
Pin No.
RS-232
RS-422
(5-wire)
RS-422
(9-wire)
RS-485
(3-wire)
1 to 4
1
DCD
TXD-
TXD-
DATA-
2
RXD
TXD+
TXD+
DATA+
3
TXD
RXD+
RXD+
-----------
4
DTR
RXD-
RXD-
-----------
5
GND
GND
GND
GND
6
DSR
-----------
RTS-
-----------
7
RTS
-----------
RTS+
-----------
8
CTS
-----------
CTS+
-----------
9
RI
-----------
CTS-
-----------
The pin assignments are listed in the table as follow :
BIOS Setting
Function
COM 1 (CN 18)
COM 2 (CN 19)
COM 3 (CN 20)
COM 4 (CN 21)
RS-232
RS-422 (5-wire)
RS-422 (9-wire)
RS-485
RS-485 w/z auto-flow control
Serial port 1 to 4 (COM 1 to 4) can be configured for RS-232, RS-422, or RS-
485 with auto flow control communication. The default definition of COM 1 and
COM 2 is RS-232, if you want to change to RS-422 or RS-485, you can find the
setting in BIOS.
D I
PIN 1 ~ 8
DO
PIN 11 ~ 18
20
11
10
1
3
4
5
6
7
8
9
10
LAN 3
LAN 4
LAN 5
LAN 6
LAN 7
LAN 8
LAN 9
LAN 10
11
12
13
14
15
16
17
18
LAN 11
LAN 12
LAN 13
LAN 14
LAN 15
LAN 16
LAN 17
LAN 18
COM 1
COM 2
COM 3
COM 4
DC-IN 6~78V
On / Off
IGN
LED+ LED
Power
Switch