Click image to view full size image
GSM (Model: S1901G)
Support GSM 900/1800MHz or GSM 900/1800/1900MHz.
HSDPA(Model: S1901H)
Support HSDPA GSM 850/900MHz/1800/1900MHz Quad Band.
UMTS/HSDPA 850/1900/2100MHz Tri Band.
EDGE(Model: S1901E)
Support: GSM 850/900MHz/1800/1900MHz Quad Band.
CDMA (Model: S1901C)
Support CDMA 450/800/1900MHz single band or CDMA 800/1900MHz Dual Band.
S1901 series
1xSerial port, RS232/485/422 optional, 1xRJ45 (10base-T)
With CPU, Flash and SDRAM
Support data transparent transmission
Support wireless modem and wireless router mode
Support VPN/IPSEC, Static / dynamic NAT, DHCP server
Support always online and data awake mode
Support TFTP upgrading
Support Telnet/Web NMS
Can meet Machine to Machine ( M2M ) communication requirement, such as Bank ATM connection, automatically meter reading.
Data Transmission Unit (S1901)
