Netgear 597E User's Guide download pdf (Page 37)

Document 2130822. Rev 2 Mar.11 37

Appendix A: Glossary

1X One Times Radio Transmission Technology (the "one times"

refers to the frequency spectrum). Supports Internet

connections with data rates up to 153 Kbps. Actual speed

depends on the network conditions. Compare to 1x-EVDO.

1x-EVDO A high-speed standard for cellular packet data communica-

tions.

Rev. A supports Internet connections with data rates up to

3.1 Mbps (downlink from the network) and 1.8 Mbps (uplink to

the network).

Rev. 0 supports Internet connections with data rates up to

2.4 Mbps (downlink from the network) and 153 Kbps (uplink to

the network).

Average data rates are: for Rev. A: 450–800 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.

bps bits per second—The actual data speed over the transmission

medium.

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 transmis-

sions, 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.

CDMA 1X Also known as 1X, this is a high-speed standard for CDMA

cellular communications.

dormant The packet data connection has the logical PPP session left

open while the underlying physical link (the radio channel) is

released. When traffic is to resume, a radio channel is

re-acquired and the original PPP session resumes.

ESN Electronic Serial Number—The unique first-generation serial

number assigned to the AirCard ExpressCard for cellular

network use. Compare to MEID.

ExpressCard™ Add-in memory and communications cards for portable

computers. ExpressCard is a trademark of the PCMCIA.

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Netgear 597E User's Guide Page 37