GSM/GPRS based modules for long-range remote monitoring of RS-232 devices

Imagine sitting in Johannesburg and be able to monitor your RS-232 device in Capetown. A device that you normally connect to a laptop via an RS-232 cable when you are on site, but instead using a standard GSM/GPRS connection.

How often do you need to go to a remote site to download valuable data from an RS-232 device ?

Whilst a standard RS-232 cable connection is limited to +/-25M communication using the RLOG the range is almost limitless. Durban to London???

The device, referred to as RLOG (RS-232 Link Over GPRS) is connected to the monitored device and the other RLOG device to a PC (or laptop) using the standard RS-232 cable and thereafter GSM/GPRS does the rest.

It works for any device with an RS-232 port in an area where there is GSM/GPRS coverage, and forms a permanent link that is connected 24 hours per day. There are no modem initialization strings - you simply plug it in and the connection is established automatically by the unit. Whatever program you use on your PC for normal "direct monitoring" can still be used as the program will "think" that it is connected directly to the device using a standard cable as RLOG creates a transparent RS-232 link. Baud rates adjustable from 300-115,200.

The SIM card can be provided by any of the cellular service providers in South Africa, so that the customer can select the service provider with the best coverage in the particular area that the monitoring device will be deployed in.

The uses of RLOG are widespread. Devices such as weather stations, temperature loggers and condition monitoring equipment, personal computers, alarm systems, telephone exchanges and vending machines are all examples of devices with RS-232 ports that could communicate via the RLOG virtual cable.

"Its like a very long virtual cable !"

Connected 24/7
No modem initialisation
No costly phone bills
"Plug and Play"
Connects automatically on start up
Support baud rates from 300 to 115,200
Zero configuration required

In 1969 the EIA accepted the "Recommended Standard 232" (RS-232) that specified a protocol for communication between Data Terminal Devices (DTE) and Data Communication Devices (DCE).

Despite the popularity of USB, Firewire and Ethernet, there are still new RS-232 devices built every day.

Our range of RLOG products can be used to monitor, and control, a huge variety of products on almost anything at a remote site.

Pressure

Water Flow Meters

Temperature Loggers

Liquid Level Devices

Security Systems

Generator Systems

Irrigation Pumps

Computer Rooms

Power Monitoring Equipment

Weather Stations

etc. etc.

Each product includes:

1 x GSM/GPRS modem c/w RS-232 monitoring and control firmware

1 x GSM antenna

1 x RS-232 cable

1 x Power Supply

Optional - standby battery and charger

Requirement:

APN interface access, with or without Management access (24-month contract)

Vodacom or MTN GPRS data contract (24-month contract)

SIM card (one for each end of the link) supplied by the service provider, even works on "Pay As You Go" or "Pre-Paid"

For more information go to the RLOG enquiry page