Specifications

14 www.westermo.com
GSM 850/1900 MHz …
UL approved …
Extended tempe- …
rature range
–13 to –122°F …
(–25°C to +50°C)
GPRS, class B, class 10 …
Built in TCP/IP …
DTR-dialling …
DTR-SMS …
SMS-message up to …
160 characters
Up to 11 data bits …
Speed CSD up to …
14.4 kbit/s, GPRS
up to 85.6 kbit/s …
Speed serial: 300 …
to 115.2 kbit/s
Galvanic isolation …
on power supply
GD-01US
Cellular/GSM-modem
GD-01 US is a Cellular/GSM modem designed for industrial applications and
can be used on GSM networks in 850 or 1900 MHz band.
Equipment with an RS-232 interface can be connected and data rates of up
to 14.4 kbit/s in CSD and 85.6 kbit/s in GPRS are possible. Wireless commu-
nication means immense exibility and the possibility to control, monitor and
inspect equipment, when communications were not possible before for one
reason or another. One condition is, however, that it occurs within the coverage
area of a GSM network operator. SMS-messages of up to 160 characters can
also be sent.
A message can be sent to a pre-programmed number by activating the modem
using an external signal (DTR). This makes the modem ideal, for example, to
transmit a common alarm from an unmanned station. GD-01 US can com-
municate with other GSM modems, GSM wireless phones, traditional analogue
modems (TD-xx) as well as ISDN-adapters (ID-xx). The modem is congured
using AT-commands.
AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles
Tel : [phone] - Fax : [phone] - Web : http: www.audin.fr - Email : [e-mail]