Can you please tell me whether Cisco 1242 Access Point is having Internal Antenna or i have to connect External Antenna?
How to determine whether the AP is having internal antenna or not and how to find the value of the Internal antenna?
Please help me
The 1130 and 1140 Wireless AP series have internal antenna.
Data Sheet - Cisco Aironet 1130G Series IEEE 802.11G Access Point
Data Sheet - Cisco Aironet 1140 Series Access Point
A detailed information about the 1130 antennae can be found here:
Cisco Aironet Antennas and Accessories Reference Guide
Note: The 1130/1140 share the same (roughly) antennae feature.
Hope this helps.