Installation guide

© 2014 Cisco and/or its affiliates All rights reserved. This document is Cisco Public Information. Page 17 of 22
Antenna Guide for ISR and CGR with Verizon Wireless 4G LTE
LTE Antenna Frequently Asked Questions
Q) My customer has a 3G card with existing antennas and antenna cables. Can they reuse the
antennas and cables?
A) The 3G antennas (grey) cannot be reused. If the cable is an “LMR” (low-loss) Cisco antenna
cable, such as Cisco 3G-CAB-LMR240 ULL it can be used with a 4G antenna.
Q) What antennas and cables are provided by default with the LTE eHWIC?
A) The LTE EHWIC is shipped by default with 2 4G-LTE-ANTM-D dipole indoor antennas and
2 4G-AE010-R 10 foot extension cables. The C819G-4G-V ships with 2 4G-LTE-ANTM-D and
1 4G-AE010-R. C819G-4G-V units shipped before October 2013 may not include a cable; one
can be purchased separately). Both antennas should always be used. With ISRs and integrated
LTE, radio reception values (RSSI, RSRQ, RSRP, SINR) can be seen via “show command”
allowing for feedback on the best placement. (wait 1 minute before measuring)
www.cisco.com/en/US/docs/routers/access/interfaces/ic/hardware/installation/guide/EHWIC-4G-LTEHW.html#wp1183372
Q) What if the ISR is not in the best position for reception? What options are available?
A) Below there is detail on available antennas. Instead of offering a separate “bridge” device to
place for best reception and connecting to an ISR via Ethernet (limiting the ability of the ISR to
know the actual LTE status, to tune parameters, to get LTE traces and debugging data) the ISR
offers standard SKUs for indoor and outdoor antennas that allow the antenna to be placed up to 75
feet away from the ISR, while still providing the advantages of a single integrated solution.
Q) How can I tell if the LTE connection is up without using the IOS command line?
A) See the indicators below on the LTE eHWIC (similar indicators on the C819G-4G-V).
Definitions and meaning of indicator lights can be found here:
www.cisco.com/en/US/docs/routers/access/interfaces/ic/hardware/installation/guide/EHWIC-4G-LTEHW.html#wp1147431 and
www.cisco.com/en/US/partner/docs/routers/access/800/819/hardware/install/guide/pview.html#wp1086504
(note: 4G LEDs on C819G-4G-V are similar to those on LTE eHWIC)