X4-A11-W-A Digi International, X4-A11-W-A Datasheet - Page 204

• 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

Lease status types
Here are the Lease Status values that are displayed in the lease list, including how long a lease
table entry will remain in each state. Note that after a lease is deleted, the associated IP address is
returned to the available address pool.
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Assigned (active): A lease is currently assigned and active for the given client. The
client may renew the lease, in which case the lease remains in this state.
Assigned (expired): A lease has expired and is no longer active for the given client. A
lease in this state will remain for a 4 hour grace period, after which it is deleted. If the
same client requests an IP address before the lease is deleted, it will be given the same
IP address previously served to it.
Reserved (active): A lease for an address reservation is currently active for the given
client. A reservation lease will remain indefinitely, although the status may alternate
between active and inactive.
Reserved (inactive): A lease for an address reservation is currently inactive for the
given client. A reservation lease will remain indefinitely, although the status may
alternate between active and inactive.
Reserved (unavail): A lease for an address reservation was offered to a client, but that
client actively declined to use the IP address. Typically this is because the client
determined that another host on the same subnetwork is already using that IP address.
Upon receiving the client's decline message, the DHCP server will mark the address as
unavailable. The lease will remain in this state for 4 hours, after which it is reverts to the
Reserved (inactive) status.
Offered (pre-lease): A lease has been offered to the given client, but that client has not
yet requested that the lease be acknowledged. It may be that the client also received an
offer from another DHCP server, in which case this offer will expire in approximately 2
minutes. If the client requests this lease before that 2 minute interval elapses, this lease
will change status to Assigned. If the 2 minute interval expires, the offer record is
deleted and the associated IP address is returned immediately to the available address
pool.
Released: A lease was previously assigned to the given client, but that client has
proactively released it. A lease in this state will remain for a 1 hour grace period, after
which it is deleted. If the same client requests an IP address before the lease is deleted, it
will be given the same IP address previously served to it.
Unavailable Address: A lease was offered to a client, but that client actively declined
to use the IP address. Typically this is because the client determined that another host on
the same subnetwork is already using that IP address. Upon receiving the client's decline
message, the DHCP server will mark the address as unavailable. The lease will remain
in this state for a 4 hour grace period, after which it is deleted. This status may also
occur if the DHCP server determines that the IP address is in use before it offers the
address to a client (see the DHCP server setting Check that an IP address is not in use
before offering it).
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