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: http://www.arcetri.astro.it/irlab/doc/library/hwbook/connector/serial/rs366.html
Дата изменения: Sat Jul 7 01:01:28 2001 Дата индексирования: Sat Dec 22 15:29:19 2007 Кодировка: Поисковые слова: annular |
(at the DTE)
(at the DCE)
CORRECT?
25 PIN D-SUB MALE at the DTE (Computer).
25 PIN D-SUB FEMALE at the DCE (Modem).
Pin | Function | Description | Circuit EIA |
---|---|---|---|
1 | unused | ||
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 |
6 | unused | ||
7 | unused | ||
8 | unused | ||
9 | unused | ||
10 | unused | ||
11 | unused | ||
12 | unused | ||
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 |
18 | unused | ||
19 | unused | ||
20 | unused | ||
21 | unused | ||
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 |
23 | unused | ||
24 | unused | ||
25 | unused | ||
Contributor: Joakim жgren
Source:
RS366 Page at Connectivity Knowledge Platform (Made IT)
Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-07