Applications
RFI-9256 Radio Modem User Manual
Page 49 of 109
6.8 Dial-up Networking with Back-to-back Repeaters
A Hayes dial-up network can be extended by one or more back-to-back repeaters. Figure 21 shows a Hayes
dial-up network where a single back-to-back repeater has been used to extend coverage.
RFI-9256
Master
RFI-9256
Repeater
Slave
Main
DT
E
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 35
Hopping Pattern: 5
Local Address: 30
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
Main Escape Char: ‘-‘
Main Escape Guard Time: 200ms
Main DTR: Hang-up on DTR Dropped
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 35
Hopping Pattern: 5
Local Address: 1000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
RFI-9256
Repeater
Master
RFI-9256
Slave 3
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 35
Hopping Pattern: 6
Local Address: 5000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
Main Null Modem Cable
Back-to-back Repeater
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 35
Hopping Pattern: 6
Local Address: 30
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
Main Escape Char: ‘-‘
Main Escape Guard Time: 200ms
Main DTR: Hang-up on DTR Dropped
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
RFI-9256
Slave 1
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 35
Hopping Pattern: 5
Local Address: 2000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
Main
DT
E
RFI-9256
Slave 2
RADIO CONFIGURATION
Unit is a SLAVE
Network Address: 35
Hopping Pattern: 6
Local Address: 4000
PROTOCOL CONFIGURATION
Main Port: Hayes Dial-up
SERIAL CONFIGURATION
Main Port: 115200, 8N1, Hardware Flow
Main
DT
E
Main
DT
E
Figure 21: Hayes dial-up network with three destinations and a back-to-back repeater
