Search found 742 matches

by Retired STR-SG
Tue Aug 14, 2018 8:16 pm
Forum: Fire Alarm Help
Topic: Federal Signal Autocall Panel
Replies: 8
Views: 124

Re: Federal Signal Autocall Panel

I may have found a few grains of truth for you. Searching for MDK-2 turned up this information. Two sources say the EOLR value is 3.16K, which is a standard 1% resistor value. The closest standard 5% resistors are 3K and 3.3K. A reverse calculator came up with 3300 ohms and 75000 ohms in parallel fo...
by Retired STR-SG
Sun Aug 12, 2018 9:29 pm
Forum: Fire Alarm Help
Topic: Federal Signal Autocall Panel
Replies: 8
Views: 124

Re: Federal Signal Autocall Panel

A model number from the system or a picture of the panel would help people identify the system.
by Retired STR-SG
Sun Aug 12, 2018 9:04 pm
Forum: Fire Alarm Help
Topic: FireLite MS-5UD-3 DACT
Replies: 2
Views: 37

Re: FireLite MS-5UD-3 DACT

A DACT is designed to communicate with a DACR (Digital Alarm Communicator Receiver) which, depending on the communication format, responds to the DACT with specific handshake signals. Then the data is exchanged and if the DACR acknowledges to the DACT that there were no errors the DACT hangs up. You...
by Retired STR-SG
Tue Aug 07, 2018 5:14 pm
Forum: Fire Alarm General Discussion
Topic: What alarm do you have at work/school
Replies: 845
Views: 116637

Re: What alarm do you have at work/school

After a quick search I found information on Blue Point Alert systems.
https://www.foxvalleyfire.com/2014/04/b ... r-schools/

Based in what I read, I theorize the blue strobes are part of a new lock down emergency warning system.
by Retired STR-SG
Tue Aug 07, 2018 8:39 am
Forum: Fire Alarm General Discussion
Topic: Simplex panel all card Missing
Replies: 1
Views: 41

Re: Simplex panel all card Missing

This is a critical situation. Your system is unable to sense or respond to a fire emergency. 1. You need to place a system down service call with your service provider so a technician can diagnose and repair the system. 2. You need to immediately start a fire watch and continue that until the system...
by Retired STR-SG
Mon Aug 06, 2018 5:35 pm
Forum: Fire Alarm Help
Topic: Simplex Trouble Alarm
Replies: 1
Views: 44

Re: Simplex Trouble Alarm

What is the model of the panel? It is usually on the front door and/or the dress panel. Is that all that shows in the display or is there more? Please include everything the display shows. We will try to help but need more information. That is something I never saw on any panel in over 40 years with...
by Retired STR-SG
Fri Aug 03, 2018 12:53 pm
Forum: Fire Alarm General Discussion
Topic: What is the deal with this simplex system!?
Replies: 6
Views: 325

Re: What is the deal with this simplex system!?

My suggestion is a complete replacement of the panel with 4100ES. The 4020 upgrade kit is a one bay box with the ES master controller card, an RUI card, and an add on 8 volt converter module. The CPU and RUI are mounted in 4100+ style motherboards. No U/ES type power supplies are included. Adding th...
by Retired STR-SG
Mon Jul 23, 2018 11:33 am
Forum: Fire Alarm General Discussion
Topic: What is the deal with this simplex system!?
Replies: 6
Views: 325

Re: What is the deal with this simplex system!?

I tend to agree with RSSAlarm. When the SmartSync devices came out there was a learning curve. It was found that if installed on a standard NAC with a slow pulse rate it was possible to confuse the horn control circuit into working - sort of. The horns would make various noises sometimes including d...
by Retired STR-SG
Wed Jul 18, 2018 10:01 pm
Forum: Fire Alarm General Discussion
Topic: Power Supply Trip Via NAC : UL 864 9th Edition
Replies: 4
Views: 141

Re: Power Supply Trip Via NAC : UL 864 9th Edition

In the case of hardwired serial connected NAC extenders to be able to bypass the trouble contact all it takes is a diode connected across the contacts. The relay can open the host panel NAC to report trouble. When the host panel goes into alarm the polarity reverses and the diode would bypass the op...
by Retired STR-SG
Mon Jul 16, 2018 12:45 pm
Forum: Fire Alarm Help
Topic: is it possible to buy Simplex dongle>
Replies: 5
Views: 148

Re: is it possible to buy Simplex dongle>

I retired before the JCI buyout so I have no idea on how procedures have changed. In my time with the company programmers and dongles were only sold to end user customers. They legally own the system and legally have that option. The programmer and dongle was expensive and required the customer to s...
by Retired STR-SG
Tue Jul 03, 2018 7:03 pm
Forum: Fire Alarm General Discussion
Topic: White alarm on the wall at Save A Lot labeled "smoke".
Replies: 3
Views: 156

Re: White alarm on the wall at Save A Lot labeled "smoke".

The first thing that comes to mind is a control station for a standalone duct smoke detector. The picture is the control station for a Simplex 4098-9687 standalone duct detector. Other brands have standalone duct detectors too. These are installed to shut down the unit if a fire starts in the unit o...
by Retired STR-SG
Tue Jul 03, 2018 10:16 am
Forum: Fire Alarm General Discussion
Topic: Separate Zones for Trouble/Supervisory?
Replies: 4
Views: 141

Re: Separate Zones for Trouble/Supervisory?

Sprinkler tamper switches close together, like the ones on a fire pump, can be grouped on one circuit. There is a limit on the number of switches that can be grouped. It is better if every switch is a separate circuit which is easier to do with an addressable system. Every system I ever installed we...
by Retired STR-SG
Tue Jul 03, 2018 9:17 am
Forum: Fire Alarm General Discussion
Topic: Separate Zones for Trouble/Supervisory?
Replies: 4
Views: 141

Re: Separate Zones for Trouble/Supervisory?

There are separate zones (circuits) dedicated to supervisory functions. Those would be sprinkler valve tamper switches, fire pump conditions, etc. Every circuit (IDC, NAC, SLC) regardless of what devices are connected is required to be electrically supervised. They must report trouble if something g...
by Retired STR-SG
Sun Jul 01, 2018 9:45 pm
Forum: Fire Alarm General Discussion
Topic: FA Zones/Loop
Replies: 4
Views: 224

Re: FA Zones/Loop

are there typically two separate loops for the notification devices and the initiation devices or can they both be in the same loop? IDCs and NACs are separate loops. Even on Simplex panels using addressable notification appliances the IDNet loop operates the initiating devices and auxiliary relays...