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KNX/IP router REG-K6803290© Schneider-Electric 2014V6803-581-0102/14
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You will find the English version of these operat-
ing instructions at:
www.merten.com
¼
DANGER
Risk of serious damage to property and per-
sonal injury, e.g. from fire or electric shock,
due to incorrect electrical installation.
Safe electrical installation can only be ensured if
the person in question can prove basic knowl-
edge in the following areas:
• Connecting to installation networks
• Connecting several electrical devices
• Laying electric cables
• Connecting and establishing KNX networks
These skills and experience are normally only
possessed by skilled professionals who are
trained in the field of electrical installation technol-
ogy. If these minimum requirements are not met
or are disregarded in any way, you will be solely li-
able for any damage to property or personal inju-
ry.
KNX/IP router REG-K
Operating instructions
Art. no. 680329
English operating instructions
For your safety
en
Function overview
The KNX/IP router REG-K (referred to below as KNX/IP
router) enables KNX telegrams of a TP line to be for-
warded to a LAN (IP) as a rapid backbone. The KNX tel-
egrams are forwarded in both directions. In a KNX
system, you can use KNX/IP routers, couplers or both
devices in mixed operation.
The KNX/IP router can also be used as an interface for
bus access via IP (e.g. for ETS programming).
With version 0C and higher (see the back of the device),
a total of up to 5 simultaneous connections is supported.
The KNX/IP router supports the DHCP Internet protocol.
The IP address can be automatically assigned via a
DHCP server or manually via the ETS setting.
Other supported Internet protocols are ARP, ICMP, IGMP
and UDP/IP. The KNX/IP router operates in accordance
with the KNXnet/IP specification using core, device man-
agement and tunnelling.
An external power supply powers the KNX/IP router. If
available in your network, you can alternatively use pow-
er over Ethernet (IEEE 802.3af).
Coupler function (KNXnet/IP routing)
The KNX/IP router can work as a line coupler or area
coupler. In both cases the LAN (IP) is used as a back-
bone.
The assignment of the physical address of the KNX/IP
router determines if the device works as a line coupler or
an area coupler.
If the physical address has the form (X.Y.0), the router
functions as a
line coupler
.
X = 1 to 15 = area
Y = 1 to 15 = line
0 = line coupler
If the physical address has the form (X.0.0), the router
functions as an
area coupler
.
X = 1 to 15 = area
0.0 = area coupler
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Note:
If the KNX/IP router is used as an area cou-
pler (X.0.0), no KNX/IP router may be located top-
ologically below it. For example, if a KNX/IP router
has the physical address 1.0.0, a KNX/IP router
with the address 1.1.0 is not permitted.
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Note:
If the KNX/IP router is used as a line cou-
pler (X.Y.0), no KNX/IP router may be located top-
ologically above it. For example, if a KNX/IP
router has the physical address 1.1.0, a KNX/IP
router with the address 1.0.0 is not permitted.
The KNX/IP router has a filter table and thus helps re-
duce the bus load. The filter table is automatically gener-
ated by the ETS in the preconfiguration.
Because of the speed difference between Ethernet (10
Mbit/s) and KNX (9.6 kbit/s), far more telegrams can be
transmitted on IP. If there are several telegrams in quick
succession for the same line, they must be buffered in
the router in order to avoid telegram losses. For this pur-
pose, the KNX/IP router has memory for 150 telegrams
(from IP to KNX).
Getting to know the KNX/IP router
KNX/IP router as a line coupler
Example with lines 1.1 and 2.1
KNX/IP router as an area coupler
Example with areas 1 and 2
KNX/IP router as a area coupler and line coupler
Example with area 1 and line 2.1
Switch
KNX
LAN
1.1.1
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
1.1.7
1.1.12
1.1.11
1.1.10
1.1.9
1.1.8
KNX IP
Router
1.1.0
KNX IP
Router
2.1.0
KNX
2.1.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
2.1.7
2.1.12
2.1.11
2.1.10
2.1.9
2.1.8
Switch
LAN
KNX IP
Router
1.0.0
KNX IP
Router
2.0.0
KNX
1.1.0
1.2.0
1.2.1
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.1.1
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
KNX
2.1.0
2.2.0
2.2.1
2.2.6
2.2.5
2.2.4
2.2.3
2.2.2
2.1.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
S
Switch
LAN
KNX IP
Router
1.0.0
KNX
1.1.0
1.2.0
1.2.1
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.1.1
1.1.6
1.1.5
1.1.4
1.1.3
1.1.2
KNX IP
Router
2.1.0
KNX
2.1.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
2.1.7
2.1.12
2.1.11
2.1.10
2.1.9
2.1.8
