X4-A11-W-A Digi International, X4-A11-W-A Datasheet - Page 85
X4-A11-W-A
Manufacturer Part Number
X4-A11-W-A
Description
PORT XBEE 802.15.4 - WIFI802.11G
Manufacturer
Digi International
Series
ConnectPort™ X4r
Specifications of X4-A11-W-A
Function
Transceiver, Xbee, Gateway
Modulation Or Protocol
802.15.4 Zigbee
Frequency
2.4GHz
Interface
1 USB, 1 RS-232, 1 RJ-45
Sensitivity
-93dBm
Power - Output
15dBm
Data Rate - Maximum
54Mbps
Voltage - Supply
6 V ~ 30 V
Wireless Frequency
2.4 GHz
Interface Type
RS-232, Ethernet, SMA
Security
NAT, DES, 3DES, 256 bit AES
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Applications
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
NS9360
Other names
602-1109
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IP Network Failover settings
The IP Network Failover feature provides a dynamic method for selecting and configuring the
default gateway for the Digi device. Failover uses of a set of rules and link tests to determine
whether a particular network interface can be used to communicate with a specified destination.
The user configures these rules, link tests and the priority order of the interfaces.
Failover maintains a network interface list, ordered by the configured Failover Interface Priority,
and containing information on the state of the network interface and recent success or failure of the
link tests for that interface. The failover status for a network interface is one of the following:
The number shown above for each status value, indicates the priority of that status, used by
failover in selecting the interface to use as the default gateway. Status priority 1 is the most suitable
for use, with lower priorities considered suitable if there are no interfaces at the highest priority.
When any network interface changes status, the interface list is examined for the interface that has
the highest status priority, nearest the start of the list. The highest priority interface with a
Responding status is used as the default gateway. If no interface is marked Responding then the
highest Up interface is used, etc.
When Network Failover performs a link test, it adds a temporary static host route to the destination
IP address for the link test, using the network interface that the link test is configured to test. The
static host route is removed when the link test completes. whether successfully or in failure. Users
should be careful to avoid manually configuring static host routes to any of the failover link test
destinations, as such host routes may interfere with failover's link testing. Static IP routes are
configured on the IP Forwarding Settings page. For additional information, see "IP forwarding
settings" on page 82.
In the Advanced Network Settings, the Gateway Priority selection provides a simpler method for
selecting the default gateway. However, if failover is properly configured and enabled, it overrides
the Gateway Priority selection in the Advanced Network Settings. For a description of this non-
failover Gateway Priority selection and information on how to configure it, see "Advanced
network settings" on page 103.
For IP Network Failover status and statistics, see "IP Network Failover statistics" on page 193.
1 - Responding: The interface is Up and configured in the system. It is currently
responding to the link tests. This interface is suitable for use as the default gateway.
2 - Up: The interface is Up and configured in the system. Its status has not been
determined by the link tests, or no link tests are configured. This interface may be
suitable for use as the default gateway.
3 - Not Responding: The interface is Up and configured in the system. However, it is
not currently responding to the link tests, and the number of consecutive test failures has
reached the threshold number configured in the Network Failover settings. This
interface may be suitable for use as the default gateway.
4 - Down: The interface is Down or not configured in the system. However, it is not
currently responding to the link tests. This interface is not suitable for use as the default
gateway.
5 - Unknown: The interface is Unknown (does not exist) in the system. This interface is
not suitable for use as the default gateway.
C o n f i g u r e D i g i d e v i c e s
8 5
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