Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

Join our "Ask Me About" community webinar on May 20th at 9 AM CET and 5 PM CET to explore cybersecurity and monitoring for Data Center and edge IT. Learn about market trends, cutting-edge technologies, and best practices from industry experts.
Register and secure your Critical IT infrastructure

not able to connect pdu model AP8959

APC UPS Data Center & Enterprise Solutions Forum

Schneider, APC support forum to share knowledge about installation and configuration for Data Center and Business Power UPSs, Accessories, Software, Services.

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Home
  • Schneider Electric Community
  • APC UPS, Critical Power, Cooling and Racks
  • APC UPS Data Center & Enterprise Solutions Forum
  • not able to connect pdu model AP8959
Options
  • Subscribe to RSS Feed
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Experts
User Count
BillP
Administrator BillP Administrator
5060
voidstar_apc
Janeway voidstar_apc
196
Erasmus_apc
Sisko Erasmus_apc
112
TheNotoriousKMP_apc
Sisko TheNotoriousKMP_apc
108
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to APC UPS Data Center & Enterprise Solutions Forum
Solved
Anonymous user
Not applicable

Posted: ‎2021-07-09 04:26 AM . Last Modified: ‎2024-02-14 10:21 PM

0 Likes
3
4386
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-07-09 04:26 AM . Last Modified: ‎2024-02-14 10:21 PM

not able to connect pdu model AP8959

I connect APC PDU serial port with console cable with the following configuration,
RJ-12          DB-9
2----------------5
3----------------2
4----------------3
I use HyperTerminal software for serial connection, with following settings,
57600 baud rate, 8 data bit, no parity, 1 stop bit, no flow control
but I am unable to communicate with PDU. I use the following procedure,
1- press reset button for 2 seconds and instantly press enter 5 to 10 times in hyper terminal software,
 but no display on hyper terminal.
2- press enter 5 to 10 times and then press the reset button, but the same result.
I checked following,
i- the computer is directly connected to serial port of PDU,
ii- computer's com port is enabled,
iii- no services using com port,
iv- scroll lock button is not pressed.
What should I do for communication with PDU? 
because my PDU is not responsive currently, as no display is on PDU.
red coloured led is on status.
Labels
  • Labels:
  • Racks, Rack Accessories, & Cooling
Reply

Link copied. Please paste this link to share this article on your social media post.

  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-07-09 04:26 AM . Last Modified: ‎2024-02-14 10:21 PM

0 Likes
0
4382
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-07-09 04:26 AM . Last Modified: ‎2024-02-14 10:21 PM

hello , you need to use an original APC cable , the part number is 940-0144 , then you can  Run a terminal program (such as HyperTerminal®) and configure the selected port for 9600 bps, 8 data bits, no parity, 1 stop bit, no flow control.

you cant do it with another communication  cable.

See Answer In Context

Reply

Link copied. Please paste this link to share this article on your social media post.

Replies 3
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-07-09 04:26 AM . Last Modified: ‎2024-02-14 10:21 PM

0 Likes
0
4383
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2021-07-09 04:26 AM . Last Modified: ‎2024-02-14 10:21 PM

hello , you need to use an original APC cable , the part number is 940-0144 , then you can  Run a terminal program (such as HyperTerminal®) and configure the selected port for 9600 bps, 8 data bits, no parity, 1 stop bit, no flow control.

you cant do it with another communication  cable.

Reply

Link copied. Please paste this link to share this article on your social media post.

owendelong
owendelong
Cadet

Posted: ‎2024-02-06 12:59 AM

0 Likes
0
3076
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2024-02-06 12:59 AM

I am using the correct cables (with a USB adapter) on a pair of AP8959 units. I can connect to both units, but all I get is weird symbols at random intervals. It's basically as if the baud rate or serial parameters are wrong, but I am definitely using 57600,cs8,-parenb,-ixon,-ixany,-crtscts and the system definitely defaults to 1 stop bit (screen on a Linux system).

I've tried other baud rates as well with no luck. (2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400).

Any other suggestions?

Reply

Link copied. Please paste this link to share this article on your social media post.

dpierce4776
Lieutenant dpierce4776
Lieutenant

Posted: ‎2024-02-06 08:45 PM

0 Likes
0
3016
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

Posted: ‎2024-02-06 08:45 PM

The correct hyperterminal settings are 9600 8 1 none none.

If that doesn't work then you most likely have a bad cable. 

Reply

Link copied. Please paste this link to share this article on your social media post.

Preview Exit Preview

never-displayed

You must be signed in to add attachments

never-displayed

 
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of