826
POWER SUPPLY UNIT FOR INSTALLATION ON
DIN RAIL Ref. 826/25
The power supply unit consists of the following:
•
Holder (1) with fuse (2).
•
Transparent cover for display and LED (3).
•
Plastic mains terminal guard (4).
•
Mains inlet and data line terminal block cover (5) and output terminal
block cover (7).
•
Self-extinguishing plastic container designed for installation on DIN
46277 rail or wall mounting with screws and wall plugs (6).
•
Spare fuse (8).
•
Transparent fuse cover (9).
•
Error code label (10).
SPECIFICATIONS
Power supply:
110/230/240 ±10%
Output voltage:
24V DC + 5% / -10%
Output current rating:
0. 7A max.
Fuse:
1.6A, time delay
Service temperature range:
-10 °C to 45 °C
Overall dimensions:
l 162 x h 118 x d 75 mm
The power supply unit can be installed on a DIN 46277 rail, or can be
wall mounted using screws and wall plugs.
The power supply unit’s 162 mm length corresponds to nine 18 mm
modules as per DIN 43880.
OPERATION
The power supply unit is sized for a typical system confi guration
consisting, for example, of the following:
•
One entrance module 826/11 or 826/55 and fi fteen to twenty four-
port decoders (826/23), or
•
One entrance module 826/11 or 826/55 and twenty to twenty-fi ve
single-port doorphone decoders (826/14).
Complex systems can be set up using two or more power supply units,
EACH OF WHICH SUPPLIES A SEPARATE GROUP OF DEVICES
THROUGH OUTPUT TE24.
WARNING
NEVER CONNECT TWO OR MORE POWER SUPPLY UNITS
IN PARALLEL: ADHERE STRICTLY TO THE INSTALLATION
DIAGRAMS.
For example, in a system with one or more main entrance modules, a
guard door switchboard station and one or more riser cables, each with
its associated secondary entrance module, it will be necessary to use:
•
One power supply unit for each pair of main entrance modules.
•
A dedicated power supply unit for the guard door switchboard
station.
•
One
power
supply
unit
for
each
riser
cable
(one
secondary
entrance
module and 20 four-port decoders).
The following rule of thumb can be used to calculate the maximum
number of devices that can connected to each power supply unit.
1) Each
device
can
be
classifi
ed
according
to
its
consumption
in
load
units (LUs). One load unit is equivalent to the load of one single-
port doorphone decoder 826/14.
2) The consumption in load units (LUs) of all devices in the system is
listed below:
Entrance module Ref. 826/65:
22 LU
Digitizer with speaker unit Ref. 826/16 + speaker unit:
15 LU
Digitizer without speaker unit Ref. 826/16:
3 LU
Guard door switchboard station Ref. 826/18:
20 LU
Four-port decoder Ref. 826/23:
1.5 LU
Single-port doorphone decoder Ref. 826/14: 1
LU
Bracket
with
single-port
decoder
for
Scout
monitor
Ref.
1204/94:
1 LU
Special services decoder unit Ref. 826/54:
3.5 LU
Relay Ref. 1032/9:
3 LU
3) Each power supply unit can be connected to a maximum of 55
Load Units.
Example: 1 entrance module (25 LU) + 20 four-port decoders
(20 x 1.5 = 30)
→
25 + 30 = 55
≤
55 OK
or:
2 Entrance modules
(2 x 25 = 50)
→
50
≤
55 OK
or:
1 Digitizer (15) and 16 single-port decoders
(16 x 1 = 16)
→
15 + 16 = 31
≤
55 OK
POWER SUPPLY UNIT FOR INSTALLATION ON DIN RAIL Ref. 826/25
SPECIFICATIONS - OPERATION
POWER SUPPLY UNIT FOR INSTALLATION ON DIN RAIL
Ref.
826
/2
5
POWER SUPPLY UNITS
10
9
8
7
1
2
3
4
6
5
1
- 69
MT124-019
Summary of Contents for 826 DIGITAL CALL SYSTEM
Page 1: ...Model 826 DIGITAL CALL SYSTEM http www urmetdomus com e mail info urmetdomus it MT 124 019 ...
Page 9: ...1 1 MT124 019 Section 1 PRODUCT ...
Page 79: ...Section 2 INSTALLATION DIAGRAM 2 1 MT124 019 ...
Page 80: ...CONTENTS Model 826 DIGITAL CALL SYSTEM 2 2 MT124 019 ...
Page 83: ...826 PARALLEL CONNECTIONS 2 5 MT124 019 ...
Page 89: ...826 DOORPHONE SYSTEMS 2 11 MT124 019 ...
Page 103: ...826 DOORPHONE SYSTEMS WITH GUARD DOOR SWITCHBOARD STATION 2 25 MT124 019 ...
Page 111: ...826 VIDEO DOORPHONE SYSTEMS 2 33 MT124 019 ...
Page 118: ......
