Cisco Systems AIRRM3000ACAK9 manual AP 3600 4 Transmitters and 4 Receivers per Radio Band

802.11n Primer - Understanding Spatial Streams

Figure 52 AP 3600: 4 Transmitters and 4 Receivers per Radio Band

The AP 2600 while similar to the AP 3600 is slightly different as it is a 3x4:3 meaning, the AP 2600 also has 4 antennas to help on the receive (upstream signal) but it only uses three transmitters on the downstream side.

The yellow sections of the MCS chart in Figure 53 depict the faster data rates supported by the AP 3600. The AP 3600 supports 802.11a/b/g rates as well as 802.11n rates of MCS values 0-23.

Figure 53 AP 2600/3600 supports up to 450 Mbps (MCS rates 0-23) AP 1600 (MCS rates 0-15)

These additional MCS rates permit more choices for the client supporting 3SS when making rate-shifting decisions as the rate-shifting algorithm maintains the best overall throughput connection.

Cisco Aironet Series 1600/2600/3600 Access Point Deployment Guide, Release 7.5

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