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mGuard industrial rs
Operating a connected
button
Operating a connected
on/off switch
222
Innominate Security Technologies
Functional earth ground
The functional earth ground can be used by the operator. This connection is electrically con-
nected to the back of the mGuard industrial rs. The mGuard industrial rs is grounded when
it is mounted on a DIN rail with the metal clamp, which connects the back of the device to
the DIN rail. The DIN rail must be grounded.
Signal contact
WARNING: Only SELV circuits with voltage limitations according to EN 60950-1 may be
connected to the signal contact.
The signal contact monitors the mGuard industrial rs and thus enables remote diagnostics.
Interruption of the contact via the floating signal contact (relay contact, closed current cir-
cuit) indicates the following:
–
Failure of at least one of the two supply voltages.
–
Power supply of the mGuard industrial rs below the specified limit value (supply voltage
1 and/or 2 is less than 9 V).
–
The faulty link status of at least one port. The link status message for each port can be
masked on the mGuard industrial rs via the management software.
By default upon delivery, there is no connection monitoring.
–
Error during selftest.
During a restart, the signal contact is interrupted until the mGuard has started up complete-
ly. This also applies when the signal contact is manually set to "Closed" in the software con-
figuration.
Service contacts
WARNING: The service contacts (_|_, CMD, ACK) must not be connected to an external
voltage source; they should always be connected as described here.
A push button or an on/off switch (e.g., key switch) can be connected between service
contacts CMD and _|_.
A standard LED (up to 3.5 V) or a corresponding optocoupler can be connected between
contacts ACK (+) and _|_ (-). The contact is short-circuit-proof and supplies 20 mA, max-
imum. The LED or optocoupler must be connected without preresistor (for wiring, see
Figure 12-6 to Figure 12-8).
The button or on/off switch is used to establish and release a predefined VPN connection.
The LED indicates the status of the VPN connection (in the web interface under "IPsec VPN
>> Global >> Options").
•
To establish the VPN connection, hold down the button for a few seconds until the sig-
nal LED flashes. Only then release the button.
Flashing indicates that the mGuard has received the command to establish the VPN
connection and is establishing the VPN connection. As soon as the VPN connection is
established, the signal LED remains lit continuously.
•
To release the VPN connection, hold down the button for a few seconds until the signal
LED flashes or goes out. Only then release the button.
As soon as the signal LED goes out, the VPN connection is released.
•
To establish the VPN connection, set the switch to the ON position.
•
To release the VPN connection, set the switch to the OFF position.
I15007_en_02
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