DATA SHEET D340, MAY 2002 1 STATE-OF-THE-ART SCIENTIFIC PRODUCTS
GSM Communication Unit 3743 enables the GSM system
as an optional data retrieval system from Aanderaa
Monitoring Stations. The GSM system is ideal when
VHF/UHF data transmission is not possible due to unattain-
able line of sight between the radio transmitter and receiver.
Together with the Display Program 3710M w/calling, this
unit will make the design of a network of stations easy and
straightforward.
The Communication Unit consists of the Wavecom "dual
band" W2MOD GSM modem and an RS-232C interface,
placed inside a water resistant IP 67, polycarbonate box.
The Interface will supply the modem with power and correct
signal levels.
Datalogger setup
In order to get the GSM modem to operate together with the
Datalogger 3634/3660, the "Modem Init String" has to be
edited in the Datalogger. To edit the "Modem Init String"
proceed as follows:
1. Connect the Programming Cable 3204 between the re-
ceptacle marked "Com.Port" on the Datalogger and a com-
puter's serial port.
2. Use communication software like HyperTerminal to
communicate with the Datalogger. See the Datalogger
Manual TD 216 for set up of HyperTerminal.
3. Enter "setup" at the "command>" promt and then enter
your password (default password is 3634 or 3660). A
menu will then appear on the screen.
4. Select menu item number 31 "Modem Init String" and
edit the Modem Init List. When finished the list should be
as shown below.
Setup Modem Init List
00 [AT ]05 [AT&W ]
01 [AT&DO ]06 [ ]
02 [MVSET ]07 [ ]
03 [AT+CPIN=XXXX ]08 [ ]
04 [AT+IFC=0,0 ]09 [ ]
In init command number 3, in the Modem Init List, replace
xxxx with your own PIN number.
5. Select menu item 32 "Set baud rate" and set new baud
rate to 9600.
GSM Communication Unit 3743
is a GSM modem for remote programming and data
retrieval from Datalogger 3634/3660.
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