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Signal contact
I15007_en_02
WARNING: Only PELV circuits or optionally SELV circuits with voltage limitations accord-
ing to EN 60950-1 may be connected to the signal contact.
The signal contact monitors the EAGLE mGuard and thus enables remote diagnostics. In-
terruption of the contact via the floating signal contact (relay contact, closed current circuit)
indicates the following:
–
Failure of at least one of the two supply voltages.
–
Permanent error in the EAGLE mGuard (internal 3.3 V DC voltage, supply voltage 1 or
2 < 9.6 V, etc.).
–
A faulty link status of at least one port. The link status message for each port can be
masked on the EAGLE mGuard via the management software.
By default upon delivery, there is no connection monitoring.
–
Error during selftest.
If the supply voltage is not redundant, the EAGLE mGuard indicates the failure of the supply
voltage. This message can be prevented by feeding the supply voltage via both inputs.
Ground connection
•
To ground the EAGLE mGuard, a separate screw connection is available.
Serial port
WARNING: The serial interface (RJ12 socket) must not be connected directly to the tele-
communications connections. To connect a serial terminal or a modem, use a serial cable
with RJ12 plug. The maximum cable length of the serial cable is 30 m.
The serial port (serial interface) can be used as follows:
To configure the mGuard via the serial interface. There are two options:
–
A PC is connected directly to the serial interface of the mGuard (via the serial interface
of the PC). The PC user can then use a terminal program to configure the mGuard via
the command line.
–
Or a modem is connected to the serial interface of the mGuard. This modem is connect-
ed to the telephone network (fixed-line or GSM network). The user of a remote PC,
which is also connected to the telephone network by a modem, can then establish a
PPP (Point-to-Point Protocol) dial-up connection to the mGuard and configure it via a
web browser.
To manage data traffic via the serial interface instead of via the WAN interface of the
mGuard. In this case, a modem should be connected to the serial interface.
Not used
Pin 6
CTS
Pin 5
TXD
Pin 4
RTS
Pin 3
RXD
Pin 2
GND
Pin 1
Figure 13-4
Pin assignment of the RJ12 socket (serial port)
RJ12
Innominate Security Technologies
EAGLE mGuard
241
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