Monitoring the DSU/CSU

Port LEDs

TXD ± Transmitted Data:

ON

± Receiving a 0 from the DTE.

OFF

± Receiving a 1 from the DTE.

RXD ± Received Data:

 

 

 

 

 

 

 

 

 

 

 

ON

± Sending a 0 to the DTE.

OFF

± Sending a 1 to the DTE.

 

RTS ± Request to Send:

 

 

 

 

 

 

 

 

 

 

ON ± DTE is activating a control signal to

 

indicate readiness to transmit data.

 

CTS ± Clear to Send:

 

 

 

 

 

 

 

 

ON ± DSU/CSU is activating a control

 

signal to indicate to the DTE that

 

it can start sending data.

 

DTR ± Data Terminal Ready:

 

 

 

 

 

ON ± DTE is activating a control signal to

 

 

indicate readiness for operation.

7112-A2-GB20-20

March 1998

6-5

Page 47
Image 47
Paradyne 7112 manual Port LEDs