Chapter
5
Operating Instructions
UE4740
20
©
SICK AG • Industrial Safety Systems • Germany • All rights reserved
8020182/1CUO/2022-08-26
Subject to change without notice
Electrical installation
5.2
Ethernet connection UE4740 (RJ-45 plug)
For the connection to the network you must use RJ-45 plugs. If the network is not
connected to a following bus device, then a connection using a RJ-45 plug is sufficient.
The UE4740 PROFINET IO EFI gateway is equipped with a 3-port layer-2 managed switch
with Auto-MDI-X for the automatic detection of crossed Ethernet cables.
Pin
Signal
PROFINET IO color
Description
1
TX+
Yellow
Send data +
2
TX
–
Orange
Send data
–
3
RX+
White
Receive data +
4
–
Not assigned
–
5
–
Not assigned
–
6
RX
–
Blue
Receive data
–
7
–
Not assigned
–
8
–
Not assigned
–
Housing
FE
–
Functional earth
5.3
Configuration connection (M8
×
4)
The configuration connection is positioned on the front of the EFI gateway.
Pin
EFI gateway
RS-232 D-Sub (9-pin) at PC end
1
Reserved
Not assigned
2
RxD
Pin 3
3
0 V
Pin 5
4
TxD
Pin 2
Touch an earthed metal part, for example the DIN rail, in order to discharge any electro-
static charges before you plug the configuration cable into the configuration connection.
Electrostatic discharging can damage the electronic equipment of the EFI gateway.
Always remove the plug from the configuration connection once you have completed
the configuration!
Note
Tab. 5: Pin assignment
Ethernet connection UE4740
(RJ-45 plug)
Fig. 5: Pin assignment
configuration connection
(M8
×
4)
Tab. 6: Pin assignment
configuration connection
(M8
×
4)
WARNING
1
4
2
3
