Networking

Security
Security
Connection/mounting accessories
Redundant power supply
The Y-adaptor supports a redundant design of the
power supply to the CMC-TC system.
System supply inputs:
The Y-adaptor has two 24 V DC inputs. This
allows the connection of two 230 V AC power
packs DK 7320.425 or two 48 V DC power packs
DK 7320.435. The input therefore has a dual
design. If one input fails, the second supply input
will supply the required power. The system operates
without interruption.
Alarm display:
There are two LEDs on the front of the device
which display the status of the two supply inputs.
At the rear there are two RJ 12 jacks which may
be connected to the I/O unit DK 7320.210 of the
CMC-TC system and indicate the status of the
supply inputs.
System supply output:
The system has one 24 V DC output which is
accessed via terminals at the rear of the enclosure.
The terminals may be connected to the
power input of the PU II (DK 7320.100) and FCS
(DK 7320.810) using the supply connection cable
DK 7320.813. The terminals have a 3-way design,
allowing the connection of up to 3 cables.
A supply connection cable is included with the
supply.
Also required:
Example:
1 Connection cable DK 7200.210
2 Power pack DK 7320.425
3 Redundant power supply
DK 7320.426
4 Supply connection cable
5 Alarm outputs U1/U2
6 Processing Unit II DK 7320.100
7 Connection cable DK 7320.470
8 I/O unit DK 7320.210
C CMC-TC
I/O-Unit
C CMC-TC
I/O-Unit
Installation:
May be mounted in the 1 U component support
DK 7320.440 or with the individual mounting unit
DK 7320.450.
Technical specifications, adaptor:
● Rated voltage 24 V DC
● Max. output current 3 A
Supply includes:
Y-adaptor, 1 supply connection cable,
two RJ 12 connection cables for I/O unit.
Note:
If several items of equipment are connected,
a maximum of 3 A may be taken in total.
Input 1 Input 2
C CMC-TC
Y-Adapter
IOIOI
1 2 3 4
C CMC-TC
Processing Unit
C CMC-TC
I/O-Unit
C CMC-TC
I/O-Unit
168 Rittal IT catalogue/Security
7
3
6
1
U1 U2
230 V AC
1
2 2
24 V DC
4
8 8 8 8
230 V AC
24 V DC
24 V DC
Packs of Model No. DK
1 7320.426
Description No. of packs Required Optional Model No. DK Page
AC power pack 230 V or
DC power pack 48 V
Connection cable D/F/B or
Connection cable GB or
Connection cable CH or
Connection cable USA/CDN or
Connection cable C13
2
2
2
2
2
2
2
–
–
–
–
–
–
–
5
7320.425 1)
7320.435
7200.210 1)
7200.211 1)
7200.213 1)
7200.214 1)
7200.215 1)
Supply connection cable (additional) 1 – 2 – 7320.813 167
1 U mounting unit 1 – 7320.440 170
Mounting module CMC 1 – 7320.450 170
I/O unit 1 – 7320.2102) 160
1) A connection cable is required for a power pack
2) A complete CMC-TC system is required to operate the I/O unit
167
167
167
167
167
167
167