Product Description ISR 1100 4P Dual GE SFP Router Memory (default and maximum)

•DRAM: 4 GB Only C1111X-8P,C1121X-8P,C1126X,C1127X, C1161X models have 8GB DRAM

•Flash: 4 GB Only C1111X-8P,C1121X-8P,C1126X,C1127X, C1161X models have 8GB Flash 

Micro-USB port (reserved) •Micro-USB port to support remote LTE diagnostics and monitoring tools (Qualcomm CAIT and Spirent UDM) (USB 3.0).

WLAN interfaces:

•Multiuser Multiple-Input Multiple-Output (MU-MIMO) allows transmission of data to multiple 802.11ac Wave 2–capable clients simultaneously to improve the client experience. Prior to MU-MIMO, 802.11n and

•802.11ac Wave 1 access points could transmit data to only one client at a time, typically referred to as Single-User MIMO (SU-MIMO). •802.11ac Wave 2 with 2x2:2 MIMO technology uses two spatial streams when operating in SU-MIMO or MU-MIMO mode, offering 867-Mbps rates for more capacity and reliability than competing access points.

•Flexible deployment through the Mobility Express solution is ideal for small to medium-sized deployments. Easy setup allows the 1000 Series (similar to 1815i) to be deployed on networks without a physical controller.

•For more information, view the Cisco Aironet 1815i Access Point Data Sheet 

Maximum clients

•Maximum number of associated wireless clients: 200 per Wi-Fi radio; in total 400 clients per access point. C1109-4PLTEP and C1109-4PLTEW models come with default dual W-ANTM2050D-RPSMA external antenna and all modem have default 8.8 AP autonomous or Mobility Express release. Option to select 8.8 CAPWAP WLC image.