Applications
RFI-9256 Radio Modem User Manual
Page 48 of 109
6.7 Hayes Dial-up Networking
The simplest form of Hayes dial-up networking is shown in Figure 20.
RFI-9256
Master
RFI-9256
Slave 1
Main
DT
E
Main
DT
E
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 19
Hopping Pattern: 3
Local Address: 1000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
RFI-9256
Slave 2
Main
DT
E
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 19
Hopping Pattern: 3
Local Address: 2000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 19
Hopping Pattern: 3
Local Address: 3000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
Figure 20: Hayes dial-up network
A single master unit can dial either slave 1 or slave 2. Either slave can dial the master unit.
Example dial strings from the master are:
ATD200001<CR>
: Dial the auxiliary port of slave 1 (address 2000, extension 01).
ATD300092<CR>
: Dials the internal menu system of slave 2 (address 3000, extension 92).
An example dial string from slave 1 is:
ATD 100000<CR>
: Dial the main port of the master (address 1000, extension 00).
For more information on the Hayes dial-up protocol and connection management, see section 5.3.3 on page
34.
