1. Confidential MeshAP Structure ArrowSpan Wireless Mesh Network Solutions May 2007

2. Confidential Node-to-node Interconnection MeshAP 3100 – Dual 5GHz / Single 2.4GHz Wireless Mesh Access Point Backhaul Mesh Link: Dual 5GHz AP: Single 2.4GHz Mesh Link Down Link To Mesh Up Link To Mesh Client Link

3. Confidential Data Packet Flow Chart Backhaul WPA WPA WPA WPA Press Spacebar to begin WPA WPA WPA WPA (Slide Show view to Play)

4. Confidential How Mesh Network Works Mesh Manager Station 1 Station 2 Station 3 Station 4 Press Spacebar to begin MeshAP based on Hop Counts, Signal Strength to associate with each other (Slide Show view to Play)

5. Confidential Node-to-node Distance and Angle Calculation ArrowSpan 802.11a & 802.11b Antenna Length: 304m (1000ft) with -63.8dBm [54Mbps] 18dBm (54Mbps output power) + 8dBi antenna = 26dBm 26 - 93.7 (304m 5.8GHz open space loss) + 8 (receiving antenna gain) = -59.7dBm Minimum link sensitivity: -67dBm for 54Mbps Height: 22.6m (74ft) with maximum 8dbi gain from Antenna Total 45.6m (149ft) of coverage [13°] with 8dbi gain from Antenna. - 3dbi RF loss with great than maximum height L =304m (1000ft) 13° h =22.8m (74ft) -3dbi * Based on Standard ArrowSpan 5GHz & 2.4GHz 8dBi Antenna