Installing the anchors (with the Location service) – Help Center Mozaë

Anchors are relays attached in the building: they transmit messages from the ear tag sensors to the Ear Tag Base and are used to locate the animals. Their position determines good data reception and the accuracy of animal location.

This article contains the following sections:

Who carries out the installation?
Placing the anchors
Estimating the number of anchors needed
Attaching the anchors
Saving the position of the anchors
Checking that the anchors are working

Who carries out the installation?

The anchors are usually installed by your distributor. Depending on how your distributor works, or if you bought the equipment directly, you may need to install them yourself.

Placing the anchors:

The anchors form a chain: each anchor relays messages to the next anchor, then to the Ear Tag Base. Follow the rules below, which are also shown in the app when you create the building plan.

Rule	Recommended value	Explanation
Anchors close to the base	At least 2 anchors within 25 m of the Ear Tag Base	These anchors provide the link between the mesh network and the base.
Distance between two anchors	25 m recommended, 50 m maximum	An anchor's range is about 50 m in open field.
Distance on the same line	10 m between two anchors	The app measures distances relative to the outline of the building and to the 3 nearest anchors.
Layout	In lines and staggered	Offset the anchors from one line to the next.
Corners of the building	One anchor in each of the four corners	The corners are part of the area to cover.
Visibility	Anchors within sight of each other	The range of about 50 m applies in open field.
Installation without the location service	1 Ear Tag Base and at least 3 anchors	Minimum to plan for an installation without animal location.

Disposition des ancres, vue de dessus : 1. Base Boucle d'oreille, à l'intérieur du bâtiment mais en dehors de la zone de localisation, à moins de 25 m d'au moins 2 ancres ; 2. Ancre placée à un coin de la zone de localisation ; 3. Distance entre deux ancres : 25 m recommandés, 50 m maximum ; 4. Limite de la zone de localisation des animaux ; 5. Mur du bâtiment — **Anchor layout, top view**

1 Ear Tag Base, inside the building but outside the location area, within 25 m of at least 2 anchors

2 Anchor placed in a corner of the location area

3 Distance between two anchors: 25 m recommended, 50 m maximum

4 Boundary of the animal location area

5 Building wall

Examples of layout errors to avoid:

Erreurs de disposition à éviter, vue de dessus : 1. Une seule ancre à moins de 25 m de la Base Boucle d'oreille ; 2. Plus de 50 m entre deux ancres ; 3. Coin sans ancre ; 4. Ancres face à face au lieu d'être en quinconce — **Layout errors to avoid, top view**

1 Only one anchor within 25 m of the Ear Tag Base

2 More than 50 m between two anchors

3 Corner without an anchor

4 Anchors facing each other instead of staggered

An anchor at the end of the chain depends on all the anchors before it: moving one anchor can put another anchor too far away.

These rules are deliberately simple and do not cover every building configuration. After installation, run a network audit from Settings > Network audit to check the anchor layout.

Estimating the number of anchors needed:

As a guide, allow about 1 anchor per 100 m² of building.

Building area	Estimated number of anchors
500 m²	About 5 anchors
1,000 m²	About 10 anchors
2,000 m²	About 20 anchors
3,000 m²	About 30 anchors
5,000 m²	About 50 anchors

These numbers are only an estimate: the exact number depends on the shape of the building and the anchor placement rules.

Attaching the anchors:

Attach each anchor vertically, preferably in the direction shown by the arrow at the top right of its front face.
Attach each anchor between 2 m and 2.50 m high, out of reach of the animals.
In most cases, attach the anchor to a wooden post or to a vertical steel I-beam.
Screw the anchor in place by its side mounting tabs, using the self-drilling screws supplied : they are suitable for all types of building, including wooden posts.
An anchor's battery has an estimated life of about 10 years.

An anchor lying flat is deliberately inactive, to save its battery during storage and delivery. Never attach an anchor flat.

Ancre fixée verticalement, à gauche sur un poteau en bois, à droite sur un IPN métallique vertical : 1. Ancre ; 2. Flèche indiquant le sens de pose ; 3. Vis autoperceuse, dans la patte de fixation ; 4. Hauteur de fixation, entre 2 m et 2,50 m ; 5. Poteau en bois ; 6. IPN métallique, en position verticale — **Anchor attached vertically, on the left on a wooden post, on the right on a vertical steel I-beam**

1 Anchor

2 Arrow showing the mounting direction

3 Self-drilling screw, in the mounting tab

4 Mounting height, between 2 m and 2.50 m

5 Wooden post

6 Steel I-beam, in vertical position

Saving the position of the anchors:

After fitting, save the position of each anchor in the app:

on a computer, from Settings > Layout, by placing the anchor on the building plan;
on a phone, with the Geolocateaction, standing next to the anchor: the phone's current position is saved.

Each anchor is identified by its serial number. It is shown on a label with a barcode, underneath the anchor.

Face avant et dessous de l'ancre : 1. Étiquette du numéro de série — **Front and underside of the anchor**
1 Serial number label

Checking that the anchors are working:

An anchor that is not communicating may be lying flat: first check that it is attached vertically.
The date of each anchor's last communication is displayed on the devices screen of the app.

Understanding the Devices page