M & S SYSTEMS DS-3B Door Intercom Station with Bell Button

by M&S Systems

Product Details

• Product Dimensions: 7 x 5 x 2.5 inches ; 15 ounces
• Shipping Weight: 1 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B00009W5W0
• Item model number: DS-3B
• Average Customer Review: 3.0 out of 5 stars  See all reviews (9 customer reviews)
• Amazon Best Sellers Rank: #19,223 in Electronics (See Top 100 in Electronics)

Product Description

M & S Systems DS-3B Door Intercom Station With Bell Button

Customer Reviews

Most Helpful Customer Reviews

18 of 18 people found the following review helpful:

4.0 out of 5 stars Works fine, but needs documentation, September 22, 2008

By 

Dan - See all my reviews

The M&S/Linear DS3B is a fully functional door station for use with several of the M&S/Linear intercom systems. It includes a two-way speaker through which visitors can communicate, as well as a lit doorbell button.

The biggest issue with the door station is that it seems to lack any real documentation. The speaker unit has two wires coming out of it, which are easily enough to wire. However, the doorbell button has no wires, leaving one to guess about how it should be wired. There are two screws near the button on the back, so it seems apparent that one should simply hook the two needed wires (coming from the wall) to these screws. Unfortunately, this doesn't work. What is actually required is the total removal of these screws as if to take it apart. When one does this, the button comes apart, revealing two smaller screws inside which are actually the ones which need to be wired. Not knowing this results in a lot of wasted time and head scratching when the doorbell fails to ring.

Other than the wiring confusion, though, no complaints, and the fact that the doorbell button lights up is nice at night.

8 of 8 people found the following review helpful:

4.0 out of 5 stars Easy to install, June 6, 2006

By 

A. Vale (USA) - See all my reviews
(REAL NAME)   

This review is from: M & S SYSTEMS DS-3B Door Intercom Station with Bell Button (Electronics)

This unit is designed to work with an existing 4 wire intercom installation. It does not include the rough-in kit (the box inside the wall).

I bought this to replace an ancient, broken, M&S door intercom.

It arrived without instructions but installation was a breeze. There are four connections to make, two for the speaker and two for the lighted button. You have to remove a small cover on the back of the button when connecting the wires.

The faceplace screw positions are identical to my old (15+ years) faceplate.

The whole operation took less than five minutes.

5 of 5 people found the following review helpful:

5.0 out of 5 stars works great, easy install, but no documentation, June 10, 2009

By 

JoeVegas (Las Vegas, NV USA) - See all my reviews

Amazon Verified Purchase

This review is from: M & S SYSTEMS DS-3B Door Intercom Station with Bell Button (Electronics)

I used this to replace an inoperative door bell/speaker from an M&S system that was installed in 1994. It fit perfectly in the existing front door bell/speaker box. As others have said you have to remove a small cover to attach the wires to the door bell-no big deal. It took me 15 minutes to install with an extra set of hands to help. The lit bell is nice and the speaker sounds very clear. I'm very happy with this purchase an I'd buy again.