Lenovo ThinkPad S5 2nd Generation Hardware Maintenance Manual page 101

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.
Antenna locations
a Wireless-LAN auxiliary antenna (auxiliary)
b
Wireless-LAN main antenna (main)
.
Chapter 9 Removing or replacing a FRU
95