Hach-Lange SC 1000 Controller Enhanced Communications - Manual (Page 11)

11
Installation
Figure 2 Overview of alternative GPRS-based connections
1 GPRS connection without VPN tunnel (only possible if a CDA (Corporate Data Access) account is set up with the mobile
network operator)
2 GPRS connection with secure VPN tunnel
3 GPRS connection via a VPN server of the mobile network operator
4 GPRS connection via fixed IP VPN server
5 GPRS connection via a fixed IP service and VPN server of the mobile network operator