Connecting The Fieldbus Gateway To Ethernet Ports; Rj45 Ethernet Cable Wiring; Serial Connection; Figure 2.7 Ethernet Plug & Connector Pin Position - Advantech EKI-1242 Series User Manual

2.4 Connecting the Fieldbus Gateway to Ethernet
Ports
2.4.1

RJ45 Ethernet Cable Wiring

For RJ45 connectors, data-quality, twisted pair cabling (rated CAT5 or better) is
recommended. The connector bodies on the RJ45 Ethernet ports are metallic and
connected to the GND terminal. For best performance, use shielded cabling.
Shielded cabling may be used to provide further protection.
Straight-thru Cable Wiring
Pin 1
Pin 2
Pin 3
Pin 6
Maximum cable length: 100 meters (328 ft.) for 10/100BaseT.
2.5

Serial Connection

EKI-1242 Series provides eight ports DB9 (male) connectors. RS-232/422/485 pin
assignments as below:
Pin 1
RS-232 DCD
RS-422 TX-
RS-485 DATA-
EKI-1242 Series User Manual
Cross-over Cable Wiring
Pin 1 Pin 1
Pin 2 Pin 2
Pin 3 Pin 3
Pin 6 Pin 6
Figure 2.7 Ethernet Plug & Connector Pin Position
5
9

Figure 2.8 DB 9 Pin Position

2 3 4
RX TX DTR
TX+
DATA+
Pin 3
Pin 6
Pin 1
Pin 2
8
1
1
6
5 6 7
GND DSR RTS
GND RX+
GND
20
8 9
CTS RI
RX-