Westermo GDW-11 - Manual (Page 13)

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Description
The GDW-11 provides a reliable data communication link over GSM/GPRS networks.
The unit has been designed for use in industrial data communication applications and has
several features that are not normally present on standard GSM modems. The GDW-11
is a DIN-rail mounted modem with RS-232 interface in a 9-pin D-sub.
The GDW-11 485 also has an RS-422/485 interface in screw terminal block.
Features:
… Dual band GSM 900/1800 MHz
… GPRS class 10
… Integrated TCP/IP stack
… All configurations are done by industry standard AT-commands
… Serial interface RS-232 in D-sub
… Serial interface 2/4 wire half / full duplex RS-422/RS-485 interface
(GDW-11 485 only)
… DTR-dialing
… DTR-SMS
… Isolated 12 – 48 VDC power supply
… Din-rail mountable
… LED indicators
… Windows configuration tool.
The GDW-11 can be used in data communication applications together with other GSM
modems, traditional analogue PSTN modems or ISDN adapters. Packet switched data can
be transferred via the GPRS service.