66
MEDEA Installation Manual
Feature
Input type
NO
(normally
open)
NC
(normally
closed)
Single-
balanced
Double-
balanced
Triple-
balanced
Tandem
Voltage with Alarm 1 (2)
n.a.
n.a.
n.a.
n.a.
n.a.
7 V
Voltage with masking (1)
n.a.
n.a.
n.a.
n.a.
6.2 V
n.a.
Voltage with Alarm 2 (2)
n.a.
n.a.
n.a.
n.a.
n.a.
6.2 V
Voltage with tamper alarm
(wire short circuit) *
n.a.
n.a.
13.8 V
13.8 V
13.8 V
13.8 V
Voltage with tamper alarm
(wire cut) *
n.a.
n.a.
0 V
0 V
0 V
0 V
Table 29 - Input types
n.a. = Not applicable
* Voltage present at the input terminal with supply voltage between 12 V
⎓
and 13.8 V
⎓
.
(1) Signalling for input configured as triple-balanced.
(2) Signalling for input configured as Tandem.
There is also the
inertial/shutter
input type used to connect detectors that generate fast signals (inertial,
shutter, seismic, etc.). The connection mode is fixed (NC). This does not comply with EN 50131 because
it is not protected against short circuits.
4.7.2
MEDEA position inputs and PrIO
Figure 68 - MEDEA/32 input position
Содержание MEDEA
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