3
Device description
Automatic Door Control Unit
3
EN
3
Device description
3.1
Components and function description
The following components belong to the complete
Automatic Door Control system:
Designation Order
number
Automatic Door Control Unit
7320790
Up to four Automatic Door Kits
7320.792, or 7320.795,
or
7320.796
Up to four Automatic Door keys
7320.793
Up to four TS 8 comfort handles
with door opener function
7320.794
230 V / 24 V power pack with
connection cable
7320.725
7200.210
Fastening components in the 19"
frame
7320.440
Fastening components in the
enclosure frame
7320.450
The Automatic Door Control Unit performs the
automatic opening of the rack doors should the
cooling system of the racks fail or the rack doors
need to be opened because of a smoke alarm and
fire extinguishing so that the extinguishing gas
entering the room can penetrate the racks.
The Control Unit can activate as many as four
Automatic Door Kits for the control of a maximum of
four doors where the CMC-TC system can always
control two doors using one CMC-TC channel. In
addition, four normally-closed contacts are provided
that can be assigned individually and connected to
their manually initiating keys or other adequate
switching elements. The Automatic Door Control Unit
receives an identification so it can be automatically
detected and set up by the CMC-TC system.
The Automatic Door Kit provides the magnetic locking
of the rack doors that is activated by the Automatic
Door Control Unit.
The holding magnets of the Automatic Door Kit in
their active state are supplied with 24 V power. When
the command for opening the door is issued, the
Automatic Door Control Unit deactivates the magnets
and the installed gas pressure dampers open the
rack doors.
3.1.1
Automatic Door Control Unit
All inputs and outputs of the Automatic Door Control
Unit are located on the rear.
Legend
-
I/O Door 1/2 or 3/4:
Two RJ12 sockets for connection to an I/O unit
of a CMC-TC system.
The input 1/2 and input 3/4 activates Doors 1
and 2, and Doors 3 and 4, respectively.
The CMC-TC Processing Unit II can be used to
define the appropriate combinations that cause
the doors to be opened in an alarm situation.
The Automatic Door Unit can be activated by a
CMC-TC I/O unit in conjunction with a PU II or
alternatively by a Basic CMC.
-
Doors 1, 2, 3, 4:
Four terminals for up to four door locks
(Automatic Door Kits)
The following assignment is recommended:
Door 1: Rack 1 front door
Door 2: Rack 1 rear door
Door 3: Rack 2 front door
Door 4: Rack 2 rear door
-
Access – Input 1, 2, 3, 4:
Four connections for Access Input components.
A channel for the manual door opening is
provided for each door. Automatic Door keys or
TS 8 comfort handles with door opener function
are connected to open the doors manually.
-
Power:
Connection for the 24 V power supply.
Fig. 1: Automatic Door Control Unit – rear trim panel