Hach-Lange SC 1000 Controller Enhanced Communications - Manual (Page 29)

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Installation
3.8 GPRS connection via a VPN server of the mobile network operator
The mobile network operator's CDA service (Corporate Data Access service) is used the
transfer encrypted data between devices and the control center via GPRS. The corporate
network is connected to the mobile communications network in one of two ways: via a
rented line, which guarantees a fixed bandwidth and high degree of security, or via the
Internet. The connection between the corporate network and the mobile network operator
is established using a secure VPN tunnel.
The APN (Access Point Name), username and password are requested every time a
connection is established between the sc1000 controller and the computer. Users are
identified by the mobile network operator.
• From the SYSTEM SETUP>GSM MODULE>GPRS menu
• Check whether the DIAL-IN NUMBER is identical to the number specified by the
mobile network operator
• Enter the APN (Access Point Name, provided by mobile network operator)
• Enter the USERNAME and PASSWORD (provided by mobile network operator)
• Set the GPRS tag to ON
It is also possible to obtain a private access point (APN) within the network. If this option
is pursued, only machines with a specific SIM card profile can log on to the network via
this access point. The mobile network operator specifies the requirements associated
with configuring a private access point.
Figure 22 GPRS connection via a VPN server of the mobile network operator
SYSTEM SETUP
GSM MODULE
DIAL-IN NUMBER
APN
GPRS
USERNAME
PASSWORD