Cellular Settings Screen; Cdma Service (Aeris, Verizon, Sprint); Cdma Packet (Internet) Service; Cdma Circuit Switched Data (Csd) Service - Honeywell CNI2 Operating And Installation Manual

CNI2 Operating and Installation Guide

CELLULAR SETTINGS SCREEN

CDMA Service (Aeris, Verizon, Sprint)

CDMA is an abbreviation for Code Division Multiple Access communications. CDMA
technology was originally developed for military applications but was eventually commercialized.
This communications standard is widely used in North America and in some parts of Asia and
South America.
Rather than dividing calls into time slots like GSM, CDMA allows all users to transmit at the
same time. Each call is accompanied by a unique digital code that allows it to be differentiated
from the rest. As an analogy suppose you are in a crowded room and many conversations are
taking place at the same time. Your brain is able to distinguish the conversation you are having
with your friend because it is able to focus on your friend's voice characteristics. As the room
grows more crowded each person must talk louder and the size of the conversation "zone"
grows smaller. You may have to move closer to your friend to keep the conversation going.
Thus the number of conversations is limited by the overall interference and noise in the room.
A cellular account must be activated with a cellular service provider prior to placing a CNI2 into
service. The service provider may ask the device type, which must be specified as the "CNI2 /
CDMA24".

CDMA Packet (Internet) Service

Single carrier, radio transmission technology (1X or 1XRTT) packet service may have to be
added to a standard voice plan, or may be a stand-alone service.
Packet service packages are generally priced by the number of bytes to be transferred rather
than by the minute. Typically the smallest available package will be 1 megabyte (1 Mb) per
month. The amount of data that the CNI2 will produce depends upon what sort of data is
requested from the CNI2. The amount of information exchanged on each call may range from
several hundred bytes to 10's of thousands of bytes. It may be necessary to test the system for
several months and then adjust the cellular account for the best cost based on your needs.
The CNI2 requires full Internet access because the data collection software could be running on
any server located anywhere in the world. Full access is usually assigned to customers who will
be connecting a cellular modem to a personal computer.
One parameter that will be needed is the packet service connection command. In most cases
the command will be ATD#777 but you may want to check with your service provider.

CDMA Circuit Switched Data (CSD) Service

The service provider must support asynchronous circuit-switched data (CSD) exchange at the
baud rate of the central computer's modem. Sometimes this capability may be included as part
of a standard voice package or it may be an add-on feature at extra cost.
One consideration when ordering service is the frequency of calls to and from the CNI2. Each
service provider offers different packages that may include a fixed number of minutes per month
for a fixed price. However, when this number is exceeded, the cost per each additional minute
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