User manual

CPAT FLEX (DSG1)
10
3.3 Electrical Installation
The AC/DC adapter is supplied with the equipment. It is compatible with 110V/220V and
50/60 Hz power distribution networks.
3.4 Internet Connection (optional)
The DSG1 can utilize an Internet connection to read operating parameters from the CPAT
servers and to update rmware automatically. The Internet connection might also be useful
for remote diagnostics, if needed. When connected, the unit checks for new parameters or
updates every 5 minutes. Transfers amount to a few hundred kilobytes per day.
To ensure that the DSG1 can communicate with the CPAT FTP server and obtain its param-
eters and update les, you must have the following:
DHCP enabled on the network
The DSG1’s IPv4 address is acquired through dynamic host conguration protocol (DHCP). If
no DHCP server is present on the network, the system will not be able to transmit data over
the network.
FTP port 21 must be open
Make sure the unit can access the Internet and that le transfer protocol (FTP) port 21 is
open. Without this access, the unit will not be able to communicate with the CPAT FTP server
nor download its parameters and update les.
NOTE
It is recommended that you install the DSG1 behind a rewall, or a router with an
integrated rewall, to avoid malicious or unauthorized connections (Ref: http://
www.kb.cert.org/vuls/id/107886).