Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

1 post

Wannabe Geek

# 261482 30-Nov-2019 02:23
Send private message quote this post

Hi everyone.




Got mi alarm running, had the idea to add a second siren (an external one)


Installed it paralell to the existing one (bell output) wich had already a resistor added (paralell too)


It worked for a few days but now it dos not: no audible sound from the new one, and a little, almost unhearable sound from the older siren.




What could have happened? Culd have burnt the sirens connecting that way? How can I check it the sirens are OK, or troubleshoot at all





Create new topic
32 posts


  # 2363691 30-Nov-2019 20:16
Send private message quote this post

No they should be fine, you would have exceeded the 3amp rating of the bell output(it'll auto shutdown the bell output), try just one at a time and test it

507 posts

Ultimate Geek

  # 2365238 2-Dec-2019 22:46
Send private message quote this post

SP4000 has a very very low power output compared to SP5500 and other models. You might get around it by changing sirens to a WP06 siren (LED flasher) type. Most of the current gets used on the bulb type strobes. 


You'll find the power drain is too much especially when keypads etc start shutting down / not responding.

Create new topic

Twitter and LinkedIn »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Vodafone integrates eSIM into device and wearable roadmap
Posted 17-Jan-2020 09:45

Do you need this camera app? Group investigates privacy implications
Posted 16-Jan-2020 03:30

JBL launches headphones range designed for gaming
Posted 13-Jan-2020 09:59

Withings introduces ScanWatch wearable combining ECG and sleep apnea detection
Posted 9-Jan-2020 18:34

NZ Police releases public app
Posted 8-Jan-2020 11:43

Suunto 7 combine sports and smart features on new smartwatch generation
Posted 7-Jan-2020 16:06

Intel brings innovation with technology spanning the cloud, network, edge and PC
Posted 7-Jan-2020 15:54

AMD announces high performance desktop and ultrathin laptop processors
Posted 7-Jan-2020 15:42

AMD unveils four new desktop and mobile GPUs including AMD Radeon RX 5600
Posted 7-Jan-2020 15:32

Consolidation in video streaming market with Spark selling Lightbox to Sky
Posted 19-Dec-2019 09:09

Intel introduces cryogenic control chip to enable quantum computers
Posted 10-Dec-2019 21:32

Vodafone 5G service live in four cities
Posted 10-Dec-2019 08:30

Samsung Galaxy Fold now available in New Zealand
Posted 6-Dec-2019 00:01

NZ company oDocs awarded US$ 100,000 Dubai World Expo grant
Posted 5-Dec-2019 16:00

New Zealand Rugby Selects AWS-Powered Analytics for Deeper Game Insights
Posted 5-Dec-2019 11:33

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.