Siemens N148/23 Bedienungsanleitung

A6V11689764_en

--_c

Smart Infrastructure

2020-12-18

GAMMA instabus

IP interface secure

N148/23

IP Interface Secure is used for communication between KNX devices and PCs or

other devices with an Ethernet interface and for remote access to a KNX installation.

●

Easy to connect to higher-level systems by using the internet protocol (IP)

●

LED displays for operational readiness, KNX communication and IP

communication

●

Easy and secure configuration using ETS

●

Easy to connect to visualization systems and facility management systems

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Function

Functions of IP Interface Secure

IP Interface Secure is a rail-mounted device for installation in distributions. The device uses

the KNXnet/IP standard and acts as an interface to KNX/EIB via data networks using the

internet protocol (IP). To do so, this device enables bus access from a PC or other data

processing devices.

Connections and power supply

The connection to KNX is established using a bus connector terminal (black and red

terminals). The connection to the data network (IP via 10 or 100BaseT (depending on the

switch)) is established using an RJ–45 socket.

IP Interface Secure also needs operating voltage in order to operate. IP Interface Secure can

obtain this operation voltage via the network line using “Power over Ethernet” as per IEEE

802.3af. Alternatively, the operating voltage can be obtained via the second terminal block

(white-yellow terminals) from an AC/DC 24 V safety extra low voltage supply or from a bus

voltage supply (unchoked voltage, DC 29 V). As soon as the safety extra low voltage supply

is connected to the second terminal block, operating voltage is drawn from it.

Remote access

Even if there is no direct network connection between a PC and an IP interface, you can use

a suitable network infrastructure for remote access to a KNX installation. Five simultaneous

connections (remote accesses) are possible.

Secure remote access

Additional functions

IP Interface Secure has the following attributes:

●Easy to connect to higher-level systems by using the internet protocol (IP)

●Direct access to the KNX installation from every point in the IP network (KNXnet/IP

tunneling)

●Up to five KNXnet/IP tunneling connections are possible at the same time

●LED displays for operational readiness, KNX communication and IP communication

●Easy and secure configuration using ETS

●Easy to connect to visualization systems and facility management systems

●Slot for SD card (not in use)

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Security functions of IP Interface Secure

IP Interface Secure supports the “KNX IP Secure” security standard and offers the following

security functions, among others:

●Secured access only from authenticated devices

●Secure commissioning via ETS

During secure commissioning via ETS, the device certificate printed onto the device (FDSK =

Factory Default Setup Key) is imported and stored for this exact device in the ETS project.

For more information on KNX IP Secure, refer to the ETS software help or go to the

following website: https://support.knx.org

Alternatively, insecure commissioning without KNX IP Secure is also possible. In this case,

the device is insecure and responds like other KNX devices without IP Secure.

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Technology

Position and function of the connections, operating and display elements

IP Interface Secure LEDs and connections

Pos. no.

Element

Function

1 Connection terminals for

additional power supply,

screwless

They supply the device with power if there is no

power supply via the RJ-45 connection (Power

over Ethernet).

2 KNX bus terminal blocks,

screwless

KNX bus connection

3 LED status display

Button: Learning mode

Short press of button (< 1 s):

Display status (LED on = active)

Very long push of button (> 20 s):

Reset to factory settings (LED starts blinking

after 20 s)

4 LED “Rx” LED lights up if data is received via the RJ-45

connection (Ethernet)

5 LED “Tx” LED lights up if data is sent via the RJ-45

connection (Ethernet)

6 LED “LINK” LED lights up as soon as there is a connection

via the RJ-45 (Ethernet) connection

7 LED “Tx / Rx KNX” LED lights up when telegrams are sent or

received via the KNX bus

8 LED “RUN” LED lights up as soon as power supply is

established and the device is ready for

operation

9 RJ-45 connection Connecting the device to the network

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Location of the device certificate QR code

Device certificate

The QR code of the device certificate is affixed to the device as a sticker. There is a

duplicate QR code, which can be removed for easy commissioning.

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Type overview

Type

Description

Order number

N 148/23 IP Interface Secure 5WG1 148-1AB23

Version of the Engineering Tool Software and application program

Application

Version

Engineering Tool Software (ETS) ETS 5.7.3 and up

Product documentation and support

Product documentation

Documents belonging to the product, such as operating and assembly instructions,

application description, product database, additional software and CE declarations can be

downloaded from the following website:

http://www.siemens.com/gamma-td

Frequently asked questions

For frequently asked questions about the product and their solutions, see:

https://support.industry.siemens.com/cs/ww/en/ps/faq

FAQ

Support

Contact details for additional questions relating to the product:

Tel.: +49 911 895-7222

Fax: +49 911 895-7223

Email: support.automation@siemens.com

http://www.siemens.com/supportrequest

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Notes

Safety

CAUTION

National safety regulations

Failure to comply with national safety regulations may result in personal injury and property

damage.

●Observe national provisions and comply with the appropriate safety regulations.

If you pass on the device, ensure you also pass on the documentation for the device, such

as, the operating instructions.

Notes on secure data transfer

●Operate device only in secure mode.

●Only connect the device to the internet in secure mode.

The device is in secure mode if the device has been commissioned using secure

commissioning, secure tunneling has been activated, and strong and different passwords

are used.

Possible additional security measures include:

●Only operate the device in secure mode in a safe network environment.

●Set up a separate IP network with its own hardware for KNX communication.

●Use user IDs and strong passwords to restrict access to the (KNX) IP network.

●If the device is operated in insecure mode, additionally protect remote access to the

device by using a VPN connection.

(A virtual private network (VPN) establishes an encrypted and authorized connection

(VPN tunnel) from a remote connection to a network via the internet. This VPN

connection enables secure communication protected from eavesdropping between a

remote device and the KNX installation.)

●If Wi-Fi is used, change the preset SSID of the wireless access point. Encrypt the Wi-Fi

using a secure procedure (such as WPA2 at present).

●Document network settings and give them to the building owner/operator or LAN

administrator.

●Coordinate the administration of access rights to this KNXnet/IP device in an IP network

with the respective IP network administrator.

Measures after replacing a device in the network

If an IP Router Secure or an IP Interface Secure in secure mode is stolen from a network or

replaced due to a defect, secure commissioning has to be repeated for all other devices in

the network. To do this, deactivate the“Secure commissioning“ option for each device in the

settings of the project, activate the option again and load the data to the devices again.

(There is no need to load the data into the device between deactivation and reactivation.)

Secure commissioning has to be repeated because it is not possible to exclude the

possibility that the keys that are in the secure section of the device can be read.

Recommissioning has the effect that new keys are generated and the old keys become

worthless. The removed device no longer works in the network.

More information on KNX security

For more information on KNX security, including, for example, a security check, refer to the

“KNX Secure” section on the KNX website (http://www.knx.org).

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Connection

Areas of use

The device can be used for fixed installations in interior spaces, for installations in dry

locations, within distribution boards or small casings with DIN rails EN 60715-TH35.

●Electrical expertise is required for the installation.

●The installation must be performed by a specialist.

●Do not open the casing of the device.

Incorrect installation can deactivate electrical safety features without this being

apparent to a lay person.

Ethernet RJ-45 connection

KNX 24 VDC type SELV connection

BLACK - RED +

5...6 mm

Power supply connection AC 16…24 V, DC 16…30 V

WHITE- YELLOW +

5...6 mm

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Checks

Checking the power supply via Ethernet (PoE) / Ethernet RJ-45 and KNX

< 1 s

LED OFF

< 1 s

LED ON

Tx / Rx KNX

RUN

LINK

ETHERNET

RUN

LINK

Checking the power supply via the terminal block (yellow and white)

Tx / Rx KNX

RUN

LINK

ETHERNET

< 1 s

LED OFF

< 1 s

LED ON

Tx / Rx KNX

RUN

LINK

ETHERNET

RUN

LINK

RUN

Resetting the device to factory settings

NOTICE

Loss of data due to resetting device!

When you reset the device, all parameters and settings entered are deleted.

●Ensure that the device is really supposed to be reset.

Resetting the device to factory settings

Press the Learn button (at least 20 seconds) until the programming LED starts flashing

quickly.

The programming LED flashes for 8 seconds.

The device has been reset to factory settings. All parameter settings have been deleted.

Siemens Schweiz AG

A6V11689764_en--_c

GAMMA instabus

2020-12-18

Disposal

Defective devices can be returned to the appropriate sales office with a return delivery note.

To do this, contact support: Product documentation and support [➙ 6]

The device is considered an electronic device for disposal in accordance

with the European Guidelines and may not be disposed of as domestic

garbage.

●Dispose of the device through channels provided for this purpose.

●Comply with all local and currently applicable laws and regulations.

Update

Do not interrupt power supply to the device while the data on the device is being updated!

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