Cisco Cisco 4G LTE Enhanced High-Speed WAN Interface Card for Verizon Guía De Información
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Q. Why do I need two antennas? Can I use just one?
A. Cisco 4G LTE WWAN NIMs and EHWICs support 2 x 2 multiple-input, multiple-output (MIMO) antennas. Cisco
4G LTE NIMs and EHWICs ship with two 4G, 3G, and 2G multiband swivel-mount dipole antennas and two
extended low-loss RF cables. Technically, only one antenna will transmit or receive at any point in time, but
using both antennas and cables will ensure the most optimal use by taking advantage of MIMO and multipath
diversity. With this setup you get a higher quality signal, which helps improve your throughput.
Note: The MIMO and multipath diversity improve with distance between the two antennas. Please use the
10-foot cable extenders provided to place antennas as far apart as possible to achieve better radio conditions.
10-foot cable extenders provided to place antennas as far apart as possible to achieve better radio conditions.
Q. What are Cisco 4G LTE performance and latency?
A. Cisco 4G LTE 2.0 NIMs and EHWICs support LTE Category 3 (LTE CAT3) with peak uplink and downlink
speeds of 50 and 100 Mbps, respectively, on the 10- and 20-MHz channels. Round-trip time (RTT) on the LTE
is less than 50 ms. Compared to 3G, the bandwidth is 20 times more and the latency is 5 times less.
Note: These performance numbers are theoretical limits and may not be seen in production networks;
contact your preferred wireless carrier for expected performance rates.
contact your preferred wireless carrier for expected performance rates.
Q. How can I install 4G-LTE on the ISRs?
A. The 4G-LTE hardware installation guide explains how to install the 4G-LTE on an ISR:
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The guide for installing NIMs on the ISR 4000 Series router is available at
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The ISR G2 installation can be found at
Q. How do I connect to 4G-LTE networks?
A. As with any cellular network, you need an active subscription from a service provider. When you subscribe to a
4G-LTE service, you will be given an active subscriber identity module (SIM) card to install in your ISR. The
After you install the active SIM card, you need to follow the software configuration guide to set up the router to
make a data call to 4G-
LTE networks and get an IP address. After that, it’s the same as routing over any other
WAN interface.
Q. Do the Cisco 4G LTE WWAN NIM, EHWIC, or fixed ISRs ship preloaded with SIM cards?
A. No. You must obtain the SIM card from a supported wireless carrier, and the card must be associated with an
appropriate rate plan.