User`s manual

UC-7400 Hardware User’s Manual Hardware Connection Description
ATTENTION
This product is intended to be mounted to a well-grounded mounting surface, such as a metal
panel.
Connecting to the Network
Connect one end of the Ethernet cable to one of the UC-7400’s 10/100M Ethernet ports (8-pin
RJ45) and the other end of the cable to the Ethernet network. If the cable is properly connected, the
UC-7410/7420 will indicate a valid connection to the Ethernet in the following ways:
The lower right corner LED indicator maintains a solid
green color when the cable is properly connected to a
100 Mbps Ethernet network. The LED will flash on and
off when Ethernet packets are being transmitted or
received.
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The lower left corner LED indicator maintains a solid
orange color when the cable is properly connected to a
10 Mbps Ethernet network. The LED will flash on and
off when Ethernet packets are being transmitted or
received.
Pin Signal
1 ETx+
2 ETx-
3 ERx+
4 ---
5 ---
6 ERx-
7 ---
8 ---
Connecting to a Serial Device
Use properly wired serial cables to connect the UC-7408/7410/7420 to serial devices. The
UC-7408/7410/7420’s serial ports (P1 to P8) use 8-pin RJ45 connectors. The ports can be
configured by software for RS-232, RS-422, or 2-wire RS-485. The precise pin assignments are
shown in the following table:
18
Pin RS-232 RS-422 RS-485-2w
1 DSR --- ---
2 RTS TXD+ ---
3 GND GND GND
4 TXD TXD- ---
5 RXD RXD+ Data+
6 DCD RXD- Data-
7 CTS --- ---
8 DTR --- ---
Connecting to the Console Port
The UC-7400’s console port is an 8-pin RJ45 RS-232 port. The port can be used to connect to the
console utility from a remote console via a V90 or GPRS modem with PPP protocol. The pin
definition is the same as for the serial ports (P1 to P8). For normal data acquisition applications,
you should connect to the UC-7400’s serial ports (P1 to P8) via a V90 or GPRS modem. If you
would like to use the console port for normal data acquisition applications, you can set the Console
port to startup via PPP protocol.
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