USWD500 User’s Manual Version 3.0
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You can disable the automatic transmit control function using the
AT\T0
command.
The modem waits until it receives a data forwarding character, or its buffer
becomes full.
Receive a data forwarding character
Using the
AT\F
command, users can select the data forwarding operation rule. For
details on this command, refer to the extended AT command set. You can set up
S51
(primary data forwarding character) and
S52
(secondary data forwarding
character) before selecting the data forwarding operation rule. Remember to save
the register value and reset the modem after you change any register values. If
you enable the data forwarding operation function, the USWD500 Modem sends
out the data after receiving a data forwarding character.
Broadcast and Multicast
Broadcast
Because the
Broadcast IP
address is network-dependent, the service provider
should issue the
Broadcast IP address
to CDPD users. The broadcast IP
address can be set in register
S82
using the
ATS
n
command (where
n
is the IP
address). For example:
ATS82=203.67.40.244
OK
By setting register
S84
, you can choose the unicast, broadcast, and multicast
independently. The default value of register S84 is 1 (decimal), which means bit 0
(for unicast) is unmasked. To enable the USWD500 Modem to receive broadcast
packets, bit 1 of register S84 should be unmasked also.
Multicast
Because the
Multicast IP addresses
is also network-dependent, the service
provider should issue the
Multicast IP addresses
to users. The multicast IP
addresses can be read using the
AT!M
command. For example:
AT!M?
0 0.0.0.0/0
offline
The default value of IP/gmid is
1 0.0.0.0/0
offline
0.0.0.0/0 offline
2 0.0.0.0/0
offline
3 0.0.0.0/0
offline
4 0.0.0.0/0
offline
The multicast IP addresses can be set by using the
AT!M
n
command (where
n
is
the IP address). For example:
