Hardware pinouts information and cables schemes

APC Smart UPS DB9 cable specification users reports and reviews

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There are 72 approved reports in our database

Date Content
User opinion Comment Approved by moderator?
CORRECTThis pinout worked like a champ. I"m using PowerChute Business Edition (free download from APC) on Windows 2003 server with an APC Smart-UPS 2200.APPROVED
CORRECTworked for me!received all status info: volts, status, battery % chgrd, etc...APPROVED
CORRECTWorks perfectly when using a Sun Ultra5 workstation with Solaris 8 and APC PowerChute Business Edition web-based interface. Gives full status of UPS and battery run-time. UPS is connected to /dev/ttyb.APPROVED
CORRECTCable works perfectly using this diagram, a Smart UPS 700 connected to /dev/ttyb, Sun Ultra5, Solaris 8, and APC PowerChute Business Edition web interface. All status and options are viewable/setable.APPROVED
CORRECTGreat work guys!! Keep on! I owe you one!APPROVED
CORRECTWorks great with my APC Smart-UPS 1000..APPROVED
CORRECTThis is CORRECT; had a SmartUPS 1500 with Network Management Card and no way to reconfigure it without the APPROVED
CORRECTWorks with Model Back-UPS Pro 650SAPPROVED
CORRECTNicely done!
Works perfectly both with build-in windows USP management console and APCs PowerChute software. THX a lot...
CORRECTVery useful! This is one of the few sites on Internet Which has some sense! APPROVED
CORRECTthe docu is correct, the cable work fine with windows XP SP2 and smart UPS 700APPROVED
CORRECTJust made the cabel based on this pinout. Everything works perfectly.
CORRECTWorks like a charm, Its the official model 940-0024C cable recommended by apcupsd. They suggest it might even work without the DCD-DTR RTS-CTS shorts but that didn`t work for me.

CORRECTcompletely correct, works for me, for hyperterminal access shorting the DTR pins on the pc side is not necessary. Only connecting the data pins works fineAPPROVED
2008-08-20 21:20:09rev. 2CORRECTWorks great for APC Smart 620APPROVED
2008-10-07 21:33:16rev. 2CORRECTAPPROVED
2008-10-26 01:04:03rev. 2CORRECTAPPROVED
2009-01-30 18:16:42rev. 2CORRECTAPPROVED
2009-06-08 23:10:33rev. 7CORRECTAPPROVED
2009-08-05 15:13:05rev. 7CORRECTEverything is working, tested on SmartUPS 700 with apcupsdAPPROVED
2009-08-17 20:11:44rev. 7CORRECTAPPROVED
2009-09-11 22:43:38rev. 7CORRECTI have tested with multimeter the original cable that came with APC Smart-UPS 750 (SUA750I), and found that all the connections from this document are present: UPS 2 - PC 2, UPS 1 - PC 3, UPS 9 - PC 5, PC 1 - PC 4, PC 7 - PC 8. I also tested the cable (and UPS) with software: built-in UPS service in Windows 2000 and APC Power Chute Plus, and all worked.APPROVED
2009-10-21 15:55:53rev. 7CORRECTAPPROVED
2009-11-17 19:40:34rev. 7CORRECTAPPROVED
2010-04-05 17:59:57rev. 7CORRECTAPPROVED
2010-05-20 12:00:25rev. 8CORRECTAPPROVED
2010-05-23 17:24:52rev. 8CORRECTAPPROVED
2010-08-04 00:03:41rev. 8CORRECTAPPROVED
2010-10-11 22:33:22rev. 9CORRECTAPPROVED
2011-10-09 11:49:42rev. 13INCORRECTDocument contradicts it's own specs. Two diagrams show different wiring, yet they both include 940-0024B as specified cables. I have included these comments in detail in an 'edit' submission form. The shorter table looks correct, and the one with question marks appears to be wrong, or for another cable that I do not know of. Thanks KL from MN, USA PS, the 940-0024 is a serial data cable, RX/TX. The description should delete the words 'power-fail' and 'shut-down', as these are designations for those pins for a different cable (940-0020) with simple signalling, and not serial data, and a different pin usage and a transistor & resistors in the PC end. APPROVED
2012-04-16 02:14:25rev. 14CORRECTAPC smart-ups 700i OK!APPROVED
2012-05-11 15:26:25rev. 14INCORRECTThis documents does not correctly explain the the cabling confihuration for APC Smart-UPS (Specially Smart-UPS 1500 RM).APPROVED
2012-05-14 17:01:32rev. 14CORRECTAPPROVED
2012-06-11 01:05:20rev. 14CORRECTAPPROVED
2012-06-20 20:15:03rev. 14CORRECTworks fine with APC BP-650SI and PowerChute Business Edition v9.0.1 for Windows 7APPROVED
2012-11-29 15:06:29rev. 14CORRECTWorked Good with Sua3000rmi2u. APPROVED
2014-03-18 19:59:34rev. 14CORRECTAPPROVED
2014-05-07 14:29:20rev. 14CORRECTAPPROVED
2014-07-11 14:01:12rev. 14CORRECTAPPROVED
2014-11-30 10:10:40rev. 14CORRECTAPPROVED
2014-12-13 20:48:17rev. 14CORRECTAPPROVED
2016-02-20 20:27:21rev. 14CORRECTAPPROVED
2016-04-15 18:04:47rev. 14CORRECTAPPROVED
2016-08-12 05:47:42rev. 14CORRECTIt work perfectly with my two APC SU1000 and Smart-UPS 420. Thank You.APPROVED
2016-09-13 17:57:45rev. 14CORRECTAPPROVED
2016-12-21 20:38:54rev. 14CORRECTAPPROVED
2017-02-02 13:59:06rev. 14CORRECTAPPROVED
2017-02-06 13:03:17rev. 14CORRECTAPPROVED
2017-08-09 14:30:15rev. 15CORRECTthis scheme is OKAPPROVED
2017-08-23 05:23:23rev. 15CORRECTAPPROVED
2017-09-05 05:14:00rev. 15CORRECTThis pinout ('simple scheme') matches the pinout of the 940-1524D cable, including shorted pins and connected shells.APPROVED
2017-09-10 16:18:24rev. 16CORRECTAPPROVED
2018-10-27 23:11:23rev. 16CORRECTAPPROVED
2019-01-25 05:29:46rev. 16CORRECTAPPROVED
2019-02-12 00:01:16rev. 16CORRECTNot that I have seen. Additonal it will be helpfull to note the apc default username and password. Thank you for your data collection. BR RogerAPPROVED
2019-03-28 21:33:44rev. 16CORRECTAPPROVED
2019-11-07 11:55:49rev. 17CORRECTAPPROVED
2019-12-15 18:42:40rev. 17CORRECTO esquema simples (APC 940-1524D cable) funcionou perfeitamente em um APC SURTA1500XL!APPROVED
2020-06-06 15:21:50rev. 17ERROR FIXEDThe 9,1,2 pins look OK for the basic mode, but the smart mode seems to need extra components. 4+9=GND 8=25V 7=5VAPPROVED
2021-02-07 16:07:41rev. 17CORRECTEverything is correct for APC RT5000 XLI communicationAPPROVED
2021-04-24 01:51:53rev. 17CORRECTnoAPPROVED
2022-06-13 22:13:30rev. 17CORRECTAPPROVED
2023-03-12 23:15:09rev. 17CORRECTAPPROVED

History of users contributions

Date Content
Author Comment
2009-02-21 22:27:20rev. 3Juri G. SolovievJust "Apcupsd" added to header
2009-04-01 18:26:41rev. 6Paul BungardAdded another part number that will work with these cards.
2009-05-13 21:13:06rev. 7Christopher RoweUpdated part# based on what I have on hand; found the site trying to verify this was the correct cable. Pinouts match exactly.
2010-04-18 13:28:53rev. 8David YuillThe male-female connector shells are also connected.
2010-08-11 13:40:09rev. 8Nick
2012-01-15 15:01:27rev. 13I got my information from APC forum and a third party site
2012-07-03 16:30:57rev. 14UPS to Modem for 9pin D-SUB male to 9pin D-SUB male connection diagram
2013-02-20 21:47:20rev. 14

Back to APC Smart UPS DB9 cable pinout

Pinouts.ru > Pinout of APC Smart UPS cable and layout of 9 pin D-SUB male connector and 9 pin D-SUB female connector
should be correct