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The difference between DTU IP Modem and Normal Modem

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The difference between DTU IP Modem and Normal Modem

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There are DTU Modem and Normal Modem, what are the differences for them? Here I just use a simple diagram to show you the details.



Item

GPRS DTU IP Modem

GPRS Normal Modem

TCP/IP, PPP

Yes

Yes

Interface

RS232/RS485

RS-232

Bandwidth

20~60Kbit/s

20~60Kbit/s

Coverage

Same as GSM network

Same as GSM network

Transparent Data

Yes

No

VDPN

Yes

Yes

Point to Point

Yes

Depends network

Point to Multipoint

Yes

No

Center to Multipoint

Yes

No

Dynamite IP Address Mapping

Yes

No

Multi-protocol

Yes

No

Dialup

Auto-dialup

Need back platform’s dialup script

Applications

Utilities, traffic control, finance and industry supervision, SCADA, others

Mobile Internet access for PC, others

 

DTU: Data Transmission Unit. Called as IP Modem, Serial to Cellular Gateway modem also.

 

Please visit E-Lins Communication Co., Ltd. for more information.

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