Ring Communications DNA100 - Manual (Page 11)

April 2012 Digital Network Adapter DNA100
FRONT PANEL SWITCHES AND INDICATORS
SWITCHES
SW1 - Reset. Creates a local reset for this node only.
SW2 - Node & Network Address
SW3 - RS232 Baud Rate, Device selection
L.E.D.'s (left side, network)
RUN - Indicates the local processor in the DNA100 is running. Will illuminate after power up or reset.
MASTER - Will light steady if this node is the master on the network. There can only be one master on each
network. On power up, each device waits for a response from a master. If no response is received, then this
device will take over as a master. Therefore, the first device powered up will be the master.
TX - Transmit data to the Network. Will flash when the DNA100 sends data out on the Network. If the
Master LED is on, the TX LED will flash constantly. When the Master LED is off, TX will only flash when
transmitting to other devices.
RX - Receive data from the Network. Will flash when data is transmitted from another device to the network. If
the Master LED is on, the RX LED will flash when other devices respond to scanning from the Master. When the
Master LED is off, the RX LED will flash constantly.
L.E.D.'s (right side, RS232)
RTS - Request to send. Output, indicates the DNA100 is ready to receive data from the RS232 device.
CTS - Clear to send. Input, (selectable for internal or external input) illuminated when the RS232 device is
ready to receive data from the DNA100.
TX - Transmit data. Output to RS232 device. Should flash every second when the time is updated or
data is transmitted to the RS232 device.
RX - Receive data. Input from RS232 device. Will flash when keys are pressed on the terminal device or data
is sent to the DNA100.
7
ADDRESS
SW2
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
BAUD RATE
SW3
RESET
TX CTS
RX RTS
TX
RX RUN
MASTER
Ring-Master