Monitoring the DSU6-4 7610-A2-GB20-10November 1997Port LEDsTXD – Transmitted Data:ON – Receiving all 0s from the DTE.OFF – Receiving all 1s from the DTE.Blinking – User data is being transferred.RXD – Received Data:ON – Sending all 0s to the DTE.OFF – Sending all 1s to the DTE.Blinking – User data is being transferred.RTS – Request to Send:ON – DTE is activating a control signal toindicate readiness to transmit data.CTS – Clear to Send:ON – DSU is activating a control signal toindicate to the DTE that it can startsending data.DTR – Data Terminal Ready:ON – DTE is activating a control signal toindicate readiness for operation.
