Lenovo ThinkPad Edge E531 Hardware Maintenance Manual page 113

Note: The wireless WAN antenna assembly is only available in some models.
Cable routing: When you install the wireless antenna assembly, route the cables as shown in the following
illustration.
Attention: When you route the cables, ensure that they are not subject to any tension. Tension could cause
the cables to be damaged by the cable guides, or a wire to be broken.
Note: The wireless WAN antenna assembly is only available in some models.
Antenna locations
a Wireless LAN AUX antenna (black)
b Wireless WAN AUX antenna (blue)
c Wireless WAN MAIN antenna (red)
d Wireless LAN MAIN antenna (gray)
.
Chapter 9 Removing or replacing a FRU
107