User manual
5
N L 9 0 0 P R O S E T T I N G S 5
S E
T T I
N G S
1) Client/Server:
Designates NL900PRO type. In
each network, there must be only
one Server. All
other NL900PRO units
must
be programmed as Clients.
The number of
Clients in the network is not
limited; however, if performance diminishes, consider
additional RF Networks.
2) Interface
Baud Rate:
This
defines
the baud rate used for communicating with the
NL900PRO over the
serial interface. The RF
baud rate is fixed at
76.8 Kbps and is independent of the Interface Baud Rate. The
default baud rate setting is 57600
bps unless the
units have been pre-configured by Raveon Technologies.
The
Interface Baud Rate setting
of the
NL900PRO must match
the Baud
Rate
setting
of its host
device.
3) Channel
Number:
A number that designates an independent network of NL900 units. Up to 32
independent networks
can
be created. The valid range of
values for
this field
is 16 to 47.
4) Max Transmit Retries (For
Clients and
Servers in Point-to-Point
networks only):
This value
represents the maximum number of times a particular data packet will
be transmitted
unsuccessfully, or
without an acknowledgement, before the NL900PRO discards the packet. The default value is 16
attempts. If communication is lost and the Client's Link LED is on, try increasing this
value in small
increments until communication
is reestablished.
Note:
This value is always associated to Client radios
and Server radios in Point to
Point Mode. The valid
range of values for
this field
is 1 to 255.
5) Broadcast Attempts (For Servers
in Point-to-Multipoint
networks only):
This value represents
the number of times a data
packet will be transmitted by the
Server NL900PRO. The default value is 4
attempts. If communication is lost and the Clients' Link LED is on, try increasing this
value in small
increments until communication
is reestablished. The valid range of values for
this field
is 1 to 255.
6) System Identification:
A number
from 0 to 256 that provides added security to each independent
network
of NL900PRO units.
The System
ID is
used
in conjunction
with the Channel
Number and serves as
an RF password
to maintain secure transfers of data. The combination of the Channel Number and System
ID must be unique to each network
of NL900PRO
to establish communication. Multiple Servers in the same
coverage area must be programmed with
different Channel Numbers to prevent inoperability of the networks.
The System ID will not prevent inoperability that occurs
from locating multiple Servers with the same
Channel Number in the same coverage area.
Note:
Separate Collocated NL900PRO networks must operate
on different Channel Numbers.
All units
in a
given NL900PRO network must have
identical Channel Numbers and System IDs.
7) Data Encryption
Key:
Encryption is the process of encoding
an information bit stream to secure the
data
content. The DES algorithm
is a common, simple and
well-established encryption routine. An
encryption key of 56 bits is used to encrypt the packet. The
receiver must use the exact same key to
decrypt the packet; otherwise garbled data will be produced.
8) Destination
Address:
The MAC Address of
the
remote
NL900PRO in
a Point-to-Point network.
Used to
optimize Point-to-Point communications by utilizing RF Acknowledgement.
9) Firmware Version:
Displays the NL900PRO's firmware version.