Connectors For External Antennas - Siemens SIMATIC NET SCALANCE W786-2HPW Operating Instructions Manual

4.7

Connectors for external antennas

How to connect external antennas
Figure 4-8
For each WLAN port, there are two R-SMA sockets on a SCALANCE W786 to connect
external antennas. The figure above shows how the R-SMA sockets are assigned to the
WLAN ports.
Perform the following steps to connect a cable for an external antenna to a SCALANCE
W786:
1. Insert the connector on the antenna cable into the R-SMA socket and tighten the sleeve
nut on the socket (key size SW8), tightening torque 0.6 Nm. First connect the cable for
antenna "B" if you want to use two antennas for an interface. Once the cable for antenna
"A" is connected, it is difficult to reach socket "B".
2. Screw a terminating resistor to the unused socket if you use only one antenna on a port.
3. Secure the antenna cable(s) with a strain relief clamp. For more detailed information on
this topic, refer to the section "Connecting the cables".
SCALANCE W786-2HPW
Operating Instructions (Compact), 06/2007, A5E01186485
Position of the ports for external antennas with the housing cover removed
4.7 Connectors for external antennas
A
2
1
B
Connecting up
39