(at the DTE)
(at the DCE)
25 PIN D-SUB MALE at the DTE (Computer).
25 PIN D-SUB FEMALE at the DCE (Modem).
|2||Digit Present||A signal given to the ACE indicating that the digit lines contain a digit||DPR|
|3||Abandon Call and Retry||An indicator signal from the ACE that it could not make a connection. Could be 'busy'.||ACR|
|4||Call Request||A signal from the DTE that tells the ACE to go 'off hook'||CRQ|
|5||Present Next Digit||A signal from the ACE to the DTE to indicate that the ACE is ready to receive the next digit.||PND|
|13||Distant Station Connected||Indicator from ACE to DTE that the call is succesfully made.||DSC|
|14-17||Digit Signal Circuits||Four lines containing a parallel BCD dial digit (10 digits, plus control digits)||NB1-NB8|
|22||Data Line Occupied||An indicator that is used by the ACE to let the DTE know that the line it wants to use is used by another device.||DLO|
|Source:||RS366 Page at Connectivity Knowledge Platform (Made IT)|
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-13