Pinouts >  ИБП  >  APC pinouts
9 pin D-SUB female connector layout
Разъем 9 pin D-SUB female
APC part # 940-0095A

Should be compatible with:

  • Back-UPS Pro PNP BP280PNP, BP420PNP, BP650PNP, BP280C, BP420C, BP650C, BP1000, BP1100, BP1400

     UPS end                                      Computer end
     -------                                      ------------
                       47k        47k
     BATTERY-LOW (5) >----R1----*----R2----*----< DTR,DSR,CTS (4,6,8)
                              |          |
                              |          |
                              |         /  E
                              |       |/
                              |    B  |
                              *-------|  2N3906 PNP
                                      |
                                      |
                                          C
                                         |
                                         |
                                         *----< DCD (1)     Low Batt
                                         |
                                         |
                                         R 4.7k
                                         3
                                         |
                                  4.7k   |
     SHUTDOWN (1)    >----------*----R4----*----< TxD (3)
                              |
                              |  1N4148
                              *----K|---------< RTS (7)      Shutdown
     
     POWER-FAIL (2)  >--------------------------< RxD,RI (2,9) On Batt
     
     GROUND (4,9)    >--------------------------< GND (5)

DTR is cable power and must be held at SPACE. DSR or CTS may be used as a loopback input to determine if the cable is plugged in. DCD is the battery low signal to the computer. A SPACE on this line means the battery is low. This is signalled by BATTERY-LOW being pulled down (it is probably open circuit normally).

TxD must be held at MARK; this is the default state when no data is being transmitted. This sets the default bias for both DCD and SHUTDOWN. If this line is an open circuit, then when BATTERY-LOW is signalled, SHUTDOWN will be automatically signalled; this would be true if the cable were plugged in to the UPS and not the computer, or if the computer were turned off.

RTS is the shutdown signal from the computer. A SPACE on this line tells the UPS to shut down.

RxD and RI are both the power-fail signals to the computer. A MARK on this line means the power has failed.

SPACE is a positive voltage, typically +12V. MARK is a negative voltage, typically -12V. Linux appears to translate SPACE to a 1 and MARK to a 0.

9 pin D-SUB male connector layout
Разъем 9 pin D-SUB male
На эту распиновку нет ни одного отзыва! Если вы знаете, правильная она или нет, - нажмите на соответствующую кнопку ниже.

Эта распиновка
Источник(и) этой и дополнительной информации: www.apcupsd.com
Copyright © 2000-2023 by pinouts.ru team, except user uploaded images.
No portion of this webpage may be reproduced in any form without visible link to pinouts.ru .
Efforts have been made to ensure this page is correct, but it is the responsibility of the user to verify the data is correct for their application.