Cisco Aironet 1700 Deployment Manual page 53

Figure 71 Module Powering Options for Low Power 802.3af (15.4 Watts)
Because the module antennas are internal, the module radiates much like an AP 3600i would because there are no RF
connectors on the module, so the antennas "appear" as they would on the internal models.
Figure 72 Top Covers Removed from AP and Module to Show How Antennas are Mounted
Cisco Aironet Series 1700/2700/3700 Access Point Deployment Guide
Cisco Aironet Series 3700 Access Point