Table 26, Tcp/ip communication devices in lizard – Vaisala Hydromet Data Collection Platform User Manual
Page 207
Chapter 5 __________________________________________ Configuring TCP/IP-Based Telemetry
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The TCP/IP-capable communication devices included in the list of
available equipment in the Devices view are listed in
NOTE
Adding a modem into the setup automatically introduces a power
control component. It is strongly recommended that automatic modem
power control, using, for example, a relay, is included whenever an
external modem is used. The relay is used in order to prevent the
modem from stalling.
Table 26
TCP/IP Communication Devices in Lizard
Device name
Description
Use
NullModem-IP
Used to connect QML to another
computer using RS232 cable. Note:
this null modem does not work with a
Windows PC.
Connecting the QML logger locally to
a router, Linux PC, or similar devices
WinNullModem-IP
Windows-specific version of the null
modem device
Connecting the QML logger locally to
a Windows PC
Siemens GPRS-IP
TCP/IP connection over GSM/GPRS
network using Siemens modem.
Tested to work with MC35i.
Connecting the QML logger to
remote systems using the GSM/
GPRS network as the ISP
connection
PSTN-IP
TCP/IP connection by dialing remote
modem(bank) using a PSTN modem.
Tested to work with DXM421.
Connecting the QML logger to
remote systems using the PSTN
network as the ISP connection
NOTE
All devices listed above are for IP use only. They provide a traditional,
readable ASCII format modem operation only for inbound connection
with the communication interface parameter Incoming set to Yes,
without PPP. Non-IP modem controls must be used if ASCII
operating mode is required. For configuration instructions on non-IP
modems, refer to
Chapter 4, Configuring Telemetry Options, on page
.