Page 7 of 39 Rev. 13
This configuration is the basic method of networking the PCOM board. This assumes there is a stable Ethernet network
using TCP/IP for communications and that at least one DHCP server is present on the network. To set up the board for
direct networking (Figure 4), connect the straight-through Ethernet cable to the board at Ethernet connector
“ETHERNET”, then to the Ethernet network. This can be at a network port or an available port on a network device
(such as a switch or router).
1
1
1
GS
TD(B)
TD(A)
RD(B)
RD(A)
1
address Slave
SW3
CONFIG
TCP/IP
SW1
SW2
RATE BAUD
ETHERNET
RS485
SW
5RS232/RS48
DB9
CAN1
CAN2
J15
J8
J4 J2
J14
1.4.5 Connecting Directly to a Host System
This option is used under the following situation:
Operation on an isolated network is desired or;
Connection to a deployed network is not possible.
To set up the board for connection to a local host (Figure 5):
1. Connect a serial cable to the board (optional for configuring the PCOM board’s IP Address), then to the available
serial port on your computer.
2. Depending on the network connection to be used do one of the following: For connections through an Ethernet
switch: Connect a standard Ethernet cable to the board, then to a port on the Ethernet device (Option A in Figure 5).
The computer should already be connected to the switch by a straight-through cable. For direct connections to a host
system: Connect the Ethernet crossover cable to the board, then to the computer (Option B in Figure 5).
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