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RFI-9256 Radio Modem User Manual Page 49 of 96
5.12 Point-to-point Auxiliary I/O with a Back-to-back Repeater
Auxiliary I/Os can also be routed through back-to-back repeaters by connecting the outputs on one radio to
the inputs on the second radio. Such a configuration is shown in Figure 21.
RFI-9256
Master
RFI-9256
Repeater
Slave
RFI-9256
Repeater
Master
RFI-9256
Slave
1
Back-to-back Repeater
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 52
Hopping Pattern: 22
Rx Address: 1000
PROTOCOL CONFIGURATION
Main Port: Point-to-point to 20
AUXILIARY I/O CONFIGURATION
Auxiliary I/O Follows Remote ENABLED
Direction: Bit0 = output; Bit1 = input
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 52
Hopping Pattern: 22
Rx Address: 20
PROTOCOL CONFIGURATION
Main Port: Point-to-point to 1000
AUXILIARY I/O CONFIGURATION
Auxiliary I/O Follows Remote ENABLED
Direction: Bit0 = input; Bit1 = output
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 52
Hopping Pattern: 23
Rx Address: 20
PROTOCOL CONFIGURATION
Main Port: Point-to-point to 3000
AUXILIARY I/O CONFIGURATION
Auxiliary I/O Follows Remote ENABLED
Direction: Bit1 = input
RADIO CONFIGURATION
Unit is a MASTER
Network Address: 52
Hopping Pattern: 23
Rx Address: 3000
PROTOCOL CONFIGURATION
Main Port: Point-to-point to 20
AUXILIARY I/O CONFIGURATION
Auxiliary I/O Follows Remote ENABLED
Direction: Bit1 = output
0 1 0
1
Figure 21: Point-to-point auxiliary I/O with a back-to-back repeater
In this scenario, I/O 0 has been configured as an output on master 1, and as an input on slave 1, thus output 0
on master 1 will mirror input 0 on slave 1.
Auxiliary I/O 1 on master 1 has been routed to I/O 1 on slave 2 via the back-to-back repeater. This is
achieved by configuring I/O 1 as an output on the repeater slave and as an input on the repeater master.
Thus, the value of I/O 1 will be mirrored on slave 1, which then feeds into master 2, and slave 2 will mirror
the value of I/O 1 on master 2.