RFM DN-2400E, Руководство пользователя

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© 2011 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DN-2400E User Guide - 08/05/11
5.0 Configuration Options
The following are the DN-2400E/EP parameters that can be configured by the user:
Parameter Default Value
TX Power 0 dBm (1.58 mW EIRP)
RF Data Rate Auto
Network ID
Base uses last two digits of MAC address
Remotes default to 0xFF which is any network ID
Encryption Security Key All NULL bytes (disabled)
Hop Duration 10 ms
Device Mode Remote
TDMA Max Slots 4
Frequency Subband Entire band (subband 0)
Remote Authentication Mode Any remote allowed
User Tag DNT2400
TX Power - this parameter sets the transmit power level used by the base (fixed), and the maximum
transmit power level used by a remote. A remote may automatically adjust its power below the RF power
settings based on the signal strength it receives from the base plus the RF Power setting being used by
the base. The 1.58 mW EIRP RF setting is useful for desktop testing. RF Power is usually set to the high-
est level allowed by local radio regulations to increase operating range in an actual application. Setting bit
4 (0001xxxx) disables the remote automatic transmit power function.
0 = 1.58 mW (default)
1 = 15.8 mW
2 = 100 mW
RF Data Rate - this sets the over-the-air data rate. DN-2400E/EP’s with different RF data rates cannot
intercommunicate. The following codes are defined:
0 = 500 kb/s (default)
1 = 200 kb/s
2 = 115.2 kb/s
3 = 38.4 kb/s
255 = Auto
Network ID - this parameter sets the network ID that a base will use to start a network, or a remote will be
allowed to join. A value of 0xFF instructs a remote to operate in “promiscuous mode” and join any net-
work it finds (if set for a base, this will select the default network ID of 0x00.)
The auto setting will cause a remote to try all four over-the-air rates when scanning for a network to join.
Setting the RF_DataRate parameter to a fixed value on the remotes will allow a network to link much
faster than using the auto setting. However, if the base RF_DataRate is changed when the remotes are
set to a fixed rate, the network will not link. Note that changing this setting does not take effect immedi-
ately. It must be followed by a MemorySave command and then a hardware reset.
Encryption Security Key - the DN-2400E/EP supports 128-bit AES encryption of data and configuration
packets. Encryption is enabled by setting this key to a value other than a string of NULL (0x00) bytes. A
remote without encryption enabled cannot link to an encrypted base, and an encrypted remote will not
attempt to link to an unencrypted base. A remote's encryption key must match that of the base before it