Sierra Wireless airlink es440, Hardware User'S Manual

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Rev 1 Oct.13
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6
6: Acronyms
Table F-1: Acronyms
Acronym or Term
Definition
1xEV-DO
Single Carrier ( 1X ) EVolution — Data Only
A high-speed standard for cellular packet data
communications.
It supports Internet connections with data rates up to 3.1 Mbps .
(downlink from the network) and 1.8 Mbps (uplink to the
network). Average data rates are roughly: for Rev. A:
600-1300
kbps . (downlink from the network) and 300-400 kbps
(uplink to the network); for Rev. 0: 400-700 kbps (downlink
from the network) and 40-80 kbps (uplink to the network).
Actual speed depends on the network conditions. Compare to
1X .
1X
Single Carrier (1X) Radio Transmission Technology
A high-speed standard for cellular packet data
communications.
It supports Internet connections with data rates up to 153 kbps
(simultaneously in each direction—downlink and uplink).
Actual speed depends on the network conditions. Compare to
1xEV-DO .
3GPP
3
rd
Generation Partnership Project
API
Application Programming Interface
AT
A set of device commands, preceded by “AT” originally
developed by Hayes, Inc. for their devices. The structure (but
not the specific commands, which vary greatly from
manufacturer to manufacturer) is a de facto device industry
standard.
CDG
CDMA Development Group
CDMA
Code Division Multiple Access
A wideband spread spectrum technique used in digital cellular,
personal communications services, and other wireless
networks. Wide channels (1.25 MHz) are obtained through
spread spectrum transmissions, thus allowing many active
users to share the same channel. Each user is assigned a
unique digital code, which differentiates the individual
conversations on the same channel.
cdmaOne
The IS-95 CDMA standard developed by QUALCOMM Inc.
CnS
Sierra Wireless proprietary Control and Status protocol
interface