15
Version 0.2
SCS-1002
Hospital and refrigerator alarm system
2
DESCRIPTION
AND
OPERATION
OF
THE
SYSTEM
COMPONENTS
2.1
R
ECEPTION AND CONTROL DEVICES
2.1.1
Reception and control devices SCS-SPS type
Functionality of RCD of SCS-SPS type:
a)
controls signals from controllers of call buttons in RS-485 network or via four-
wire communication line;
b)
provides sound and light address signaling if a call occurs in the network;
c)
sound and light alarm signaling when communication with a controller of call
buttons is lost;
d)
displays status of controllers of call buttons;
e)
mutes sound signaling or resets call signaling depending on the design
assignment;
f)
connection of external alarm;
g)
backlight of controls and brightness dimming;
h)
operation test of sound and light devices (only units where test key is pressed);
i)
controls power supply to controllers of call buttons and repeater (depending on
the power supply scheme).
Two and more RCDs of SCS-SPS type may operate within the Systems with
network connection of buttons. One RCD is always a master device (controls signals),
and other devices are slave (operate as information RCD repeaters with a reset function).
RCDs of SCS-SPS type have similar controls and LEDs. For exterior, layout and
designation of controls and LEDs of RCD SCS-SPS-5, see figure 4. For description of
controls and LEDs, see table 6.
