CHAPTER 1
What's new on the A850 ?
21
•
Users and user permissions: The A850 support up to 100
users with different user permissions:
•
one root user which may configure the A850 hardware,
•
multiple administrator level users which may configure
the RTU network and give RTU access permissions to
ordinary users,
•
multiple ordinary users which may query and configure
only RTUs and sensors for which they have access
permissions.
Note: As default, only the root user is configured.
•
Dial-up networking and dynamic IP addresses: To support
A850 devices that do not have an official internet hostname
and IP address, the following features are supported:
•
dialling an ISP on given schedule, as callback after
dialling in and/or when notifications must be delivered,
•
updating dynamic DNS services, such as DynDNS (this
requires that the A850 gets an official IP address
accessible over the internet after connecting to an ISP. If
the A850 is installed in a private network behind a NAT
router, dynamic DNS is not guaranteed to work),
•
hiding the A850 behind an SSH server that is accessible
from the internet (the A850 can be reached through the
SSH server's address).
Note: For each of these services, a secondary (backup) connection
may be configured which is used when the primary connec-
tion fails.
•
RTU routing: The A850 support multiple alternative routes to
an ISM-based RTU. Switching between routes is done by
examining the usage period of the configured routes (if the
usage times of routes overlap, the route with the higher
prority is active).
•
Polling:
•
The A850 supports multiple polling priorities: all RTUs
with higher priority are served first, then all RTUs with
Summary of Contents for A850
Page 92: ...CHAPTER 3 Configuring the Gateway 92 Figure 81 PPP Configuration Window ...
Page 128: ...CHAPTER 3 Configuring the Gateway 128 Figure 132 Dialup Modem Window ...
Page 164: ...CHAPTER 3 Configuring the Gateway 164 ...
Page 177: ...CHAPTER 4 Sensor Type Configuration 177 Figure 183 Sensor type Window Analog ...
Page 196: ...CHAPTER 4 Using the Gateway 196 Figure 216 Sensor type Window LC ...
Page 200: ...CHAPTER 4 Using the Gateway 200 Figure 222 Sensor type Window OC ...
Page 204: ...CHAPTER 4 Using the Gateway 204 Figure 228 Sensor type Window SDI ...
Page 215: ...CHAPTER 4 Logs 215 Figure 241 System Log Selection Log types Figure 242 System Log Log types ...
Page 275: ...CHAPTER 4 RTU Network Configuration 275 Sensor details Figure 319 Sensor details Window ...
Page 366: ...CHAPTER 6 Appendix 366 ...