Satel S-4 Quick Start Manual

The S-4 magnetic contact consists of two elements: magnetic sensor (reed relay) and magnet. The reed
relay, which is situated near the magnet, makes the electric circuit.
The S-4 magnetic contact can be used wherever required for controlling the status of doors, windows
and/or other movable elements, e.g. for protection or monitoring of access to particular sites, spaces,
facilities; in automatic control systems, etc.
Owing to its high degree of anti-tampering protection, the S-4 can be used for sites and facilities which
require special surveillance.

INSTALLATION

The magnetic contact is designed for installation on a flat surface by means of screws. The element
containing the magnet should be mounted on the movable part, while the reed relay – on the stationary
part of protected doors, windows, etc.
Each of the magnetic contact elements consists of three parts: the base, the housing and the pad. The
pad with the base should be secured to the mounting surface, while the housing is to be fastened to the
base with a metal screw. The part containing the reed relay is fitted with a tamper contact and a terminal
strip for connection of electric cables. The housing enables parametric resistors to be installed inside it.
The alarm installation cable should be led inside the magnetic contact through a special cable entry
provided in the base and the pad. Normally, this entry is blanked off and a hole is to be made in it. All the
component parts can only be assembled together in one position.
mounting hole
cable entry
NC – reed-relay terminals
M – installation terminal
TMP – tamper contact terminals
In order to ensure correct functioning of the S-4 magnetic contact, the maximum distance between the
magnet and the reed-relay in closed position (e.g. with the door closed) is not to exceed 18–20mm, as
may be required by the installation conditions. In order to correctly set the gap, you can use the extra
pads which are placed under the main element of the magnetic contact.

HOOKUP

Shown in Fig. 2 are two examples of connecting the S-4 magnetic contacts to the alarm control panel.
Some control panels enable a double parameter to be used, which reduces the number of cables
required for correct connection of the magnetic contact to two (e.g. the panels CA-5, CA-6, CA-10, CA-
64 made by SATEL).
®
NC NC M TMP TMP
Fig. 1 View of the S-4 magnetic contact (housing removed).
MAGNETIC CONTACT
S-4
terminal strip for electric
wires
mounting
hole
tamper contact
s4_en 08/08