GE 845 Instruction Manual page 156

DEVICE
NOTE:
NOTE:
NOTE:
4–28
WiFi Security
The setting enables WiFi security. If set to "None", there is no security and all traffic is open.
By default WiFi Security is set to WPA2-PSK.
WiFi SSID
The SSID is the public name of a wireless network. All of the wireless devices on a WLAN
must use the same SSID in order to communicate with each other. The default for the SSID
is provided by the vendor with the shipment of any new 8-Series device. It is
recommended that the customer modifies this name as needed after initial startup, to
ensure unique SSIDs if several WLANs are configured.
SSID broadcast should be disabled on AP. This provides some extra protection by requiring
a user to know an SSID before the user can connect to the device and making it harder for
casual outsiders looking for wireless networks to find the device and attempt to connect.
WiFi WPA2 Passphrase
The WPA2 Passphrase is used for generating the encryption key. The same passphrase
must be set on AP and on all devices communicating on the same WLAN. The 8-Series
device supports a string of up to 14 printable ASCII characters. Internally a 256-bit key is
calculated by applying the PBKDF2 key derivation function to this passphrase, using the
SSID as the salt and 4096 iterations of HMAC-SHA1.
The 8-Series devices are configured with a default passphrase, which is provided by the
vendor with the shipment of any new 8-Series device.
When choosing a new passphrase, the password complexity rules of CyberSentry must be
used (see CyberSentry details in the relay Instruction manual).
This field is visible only if the security is set to WPA2-PSK.
Ideally the passphrase should be set through EnerVista and not directly from the Keypad,
where there are limitations in terms of space and types of characters supported. However,
for convenience, the key setting is available from the Keypad as well.
WiFi Status
A WiFi symbol is displayed in the caption area of the 8-Series product front panel. The
following table lists all possibilities for this icon:
WiFi State
Disabled
Disconnected
Connecting
Connected
WiFi Events
Event
WiFi Connected
WiFi Disconnected
If the relay is in service mode and the settings are default a minor error is triggered.
WiFi Icon Color
Icon is grey and crossed by a red line
Grey
Yellow
Green
Description
This event is recorded to indicate a network connect.
This event is recorded to indicate a network
disconnect.
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS