Operating instructions

5 Electrical Installation WirelessHART Fieldgate SWG70
22 Endress+Hauser
5.3 Connecting to Ethernet
Fieldgate SWG70 is equipped with a fully galvanic isolated 10 Base-T/100 Base-TX Ethernet
interface. You may connect it to an existing Ethernet Hub, Switch or Router.
NOTE!
• Keep in mind that an access point of the Ethernet network has to be available. The maximum
length of the cable running from the gateway to the access point is 100 m, depending on cable
type and communication speed.
• Tension relief and bending radii: Ensure sufficient relief of tension on the cables during
installation and note the minimum bending radii of the cables.
Fig. 5-3: Ethernet interface
The wiring of the Ethernet interface depends on the cable used, see table below.
• A crossover cable is required if the gateway is connected directly to a computer
• A straight through cable is used in connection with a hub, switch or router
The other end of the cable is fitted with a standard RJ-45 connector.
Connecting to Ethernet
Network
1 Check that the power is switched off
2 If applicable, unscrew the four screws of the housing cover (see Fig. 4-5 in Chapter 4.2) and
remove the housing cover.
3 Route the Ethernet cable through the cable gland in the middle of the gateway housing.
– The permissible cable diameter lies between 6 mm and 10 mm.
4 Connect the Ethernet cable to the terminal block labelled "Ethernet" (see above) according to
the following table:
5 Screw the housing cover to the housing again.
6 Tighten the cable gland with appropriate torque, see Chapter 5.5.
KL7 KL8 KL9 KL10
+24V +24V0V 0V
LINE1 LINE2
A
B
SHD
RS485
T1
T2
RX–
RX+
TX–
TX+
ON
OFF
SHD
A
B
SHD
RS485
ETHERNET
T1 T2 RX– RX+ TX– TX+SHD
ETHERNET
KL11 KL12 KL13
Computer Gateway
Pin Numbering Connector Crossover cable Straight through
Pin 1 TX+ RX+
Pin 2 TX– RX–
Pin 3 RX+ TX+
Pin 4 T2 T2
Pin 5 T2 T2
Pin 6 RX– TX–
Pin 7 T1 T1
Pin 8 T1 T1
12345 6 78