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The remote data communication can be optionally carried out via a dial-up tele-

phone connection, by SMS text messages, or using the packet-based GPRS mobile

radio transmission service (General Packet Radio Service). The OTT netDL 1000

unit also provides remote data communication through the Ethernet interface.

Similarly, remote data communication may be carried out via a satellite trans-

mitter or a cable modem.

Furthermore, the OTT netDL has individually configurable alarm and action manage-

ment: If particular events occur, OTT netDL independently generates an alarm and

sends this via a modem e.g. to a control center. It is also possible to control exter-

nal devices via switching contacts.

For both OTT netDL models, optional voice announcer functionality is available. It

allows measured values and alarm messages to be announced through a dial-up

connection. This functionality requires a voice-enabled modem (analog or ISDN)

or the internal GSM modem (C version code…) to be used. Depending on the

articular requirements, OTT will configure custom announcer texts or provide

standard voice modules for individually compiling the announcer texts. When an

external analog modem is used, measured values may also be announced on site.

Plug-in screw terminal strips

for connecting sensors

USB interfaces

LCD display

Jog shuttle

GSM antenna

connector

SIM card holder

Fig. 3: Datalogger front panels

with the status LEDs, USB interfaces

(left: Host; right: Device), and the

plug-in screw terminal strips.

The figure shows the OTT netDL 500

unit including two expansion cards

and internal GSM modem and the

OTT netDL 1000 standard version

without any expansion cards.

OTT netDL 1000 User Manual

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