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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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