User manual

Introduction to the RLXIC-SV RLXIC-SV ♦ Intelligent Cellular
User Manual RadioLinx Intelligent Cellular Serial Modem for the Verizon Wireless CDMA Network
ProSoft Technology, Inc. Page 11 of 146
May 29, 2009
Tip: If your account with your cellular provider includes a dynamic IP address, and you need a
static IP, please consult your cellular provider Representative for more information about changing
your account for static IP support.
If you need to contact your RLXIC-SV, a device connected to the RLXIC-SV, or a
host system using the RLXIC-SV from the Internet, you need to have a known IP
(such as one which is static) or domain name (an IP address which is converted
by a DNS server into a word based name). If you have a dynamic IP address for
your modem, you can use a Dynamic DNS service (such as IP Manager) to
translate your IP address into to a domain name.
Caution: If you want to connect remotely to your RLXIC-SV using TCP/IP, the IP address given to
your modem by your cellular provider cannot be a private or internal IP address (such as a custom
APN or special private network Data Link) unless you are on the same network or inside that
network's firewall (such as with frame relay).
1.4 1x Communication EV-DO
CDMA (Code Division Multiple Access) is the underlying digital radio network
technology used by many cellular providers across the globe and is prevalent in
North America. To provide backward compatibility and seamless connections in a
wider range of locations, your RLXIC-SV will fall back to 1x when EV-DO is not
available.
RLXIC-SV is certified with the prominent North American 1x and EV-DO carriers.
1.4.1 EV-DO
EV-DO (Evolution Data Optimized) provides a broadband-like cellular data
connections that is 10 times faster than 1x/CDMA service. With the high-speed
connection, users can experience faster downloading when accessing the
Internet and retrieving e-mails, including large attachments and other bandwidth-
intensive applications. EV-DO is often referred to as Mobile Broadband and
Cellular Broadband.
EV-DO revision A is an enhancement on the original revision 0 adding expanded
upload capabilities and a more robust connection overall. In addition to
increasing the downlink speed, revision A also increases the uplink speed. In
addition, it is backwards compatible and automatically connects with existing and
broadly deployed EV-DO Rev. 0 and 1x networks ensuring reliable and pervasive
connectivity.
Note: Your RLXIC-SV does not have a second antenna for received diversity. Received diversity is
disabled by default.