Ring Communications DNA300 - Manual (Page 8)

DNA300 OPERATIONS MANUAL 8 2006/06/13
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 DNA300 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 DNA300 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 DNA300 is ready to receive data from the RS232 device.
CTS - Clear to send. Input, illuminated when the RS232 device is ready to receive data from the DNA300.
TX - Transmit data. Output to RS232 device.
RX - Receive data. Input from RS232 device.
Front panel indicators
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
RESET
MASTER TX CTS TX
RUN RX RTS RX
ADDRESS BAUD RATE
SW2 SW3