Paradyne 316x manual Data Port LEDs, Dtr

ACCULINK 316x DSU/CSU

			Table 3-4
			Data Port LEDs
Name	Color		Meaning
DTR	Green	Monitors the state of interchange circuit CD (CCITT 108/1, /2) ± DTE Ready received
		from the DTE.
		ON:	DTR is being asserted by the DTE.
		OFF:	DTR is not being asserted.
TXD	Yellow	Monitors activity on interchange circuit BA (CCITT 103) ± Transmitted Data. This is the
		data sent from the DTE to the DCE on the DSU/CSU.
		ON:	Ones are being received from the DTE.
		OFF:	Zeros are being received from the DTE.
		CYCLING: Both ones and zeros are being received from the DTE.
RXD	Yellow	Monitors activity on interchange circuit BB (CCITT 104) ± Received Data. This is data
		sent to the DTE from the DCE on the DSU/CSU.
		ON:	Ones are being sent to the DTE.
		OFF:	Zeros are being sent to the DTE.
		CYCLING: Both ones and zeros are being received from the DTE.
CTS	Yellow	Monitors the state of interchange circuit CB (CCITT 106) ± Clear to Send sent to the
		DTE.
		ON:	CTS is being asserted by the DSU/CSU.
		OFF:	CTS is not being asserted.
RTS	Yellow	Monitors the state of interchange circuit CA (CCITT 105) ± Request to Send received
		from the DTE.
		ON:	RTS is being asserted by the DTE.
		OFF:	RTS is not being asserted.

3-10 December 1996 3160-A2-GB22-10