Chapter 2
Installing the Device
RUGGEDCOM RS900W
Installation Guide
10
Connecting the Failsafe Alarm Relay
NOTE
For technical specifications, refer to
Section 3.3, “Wireless Ethernet Ports”
.
To connect the antennas, do the following:
1. Make sure the operating frequency range of each antenna is compatible with the device.
2. Align the antenna connector with the wireless port (either
TX/RX
or
RX
) and thread the antenna onto the
port. Make sure the connection is finger tight.
Figure 4: Antenna Installation
3. Repeat
for the second antenna.
4. Adjust the position of each antenna as needed.
Section 2.7
Connecting the Failsafe Alarm Relay
The failsafe relay can be configured to latch based on alarm conditions. The NO (Normally Open) contact is closed
when the unit is powered and there are no active alarms. If the device is not powered or if an active alarm is
configured, the relay opens the NO contact and closes the NC (Normally Closed) contact.
NOTE
Control of the failsafe relay output is configurable through ROS. One common application for this relay
is to signal an alarm if a power failure occurs. For more information, refer to the ROS User Guide for
the RUGGEDCOM RS900W.
The following shows the proper relay connections.
