Marquardt B8N Users Manual

Close

Open

Trunk

B8N User manual

The B8N contains three buttons for car access, to open, to lock the doors, and to open the trunk
deck. An additional 4th button is implemented optional for several functions and different markets,
e.g. panic function in the US market.

Open Button

- To unlock the vehicles doors when the button is pressed short.

- In case the button is pressed long the windows will open additionally.

Close Button

- Locks the vehicles doors when the button is pressed short.

- When the button is pressed long the windows will close additionally.

- To activate the power save mode when pressed twice. This mode is deactivated by pressing
any button.

Trunk Button
To unlock and open the vehicles trunk lid.

Optional the car can be accessed without handling the key. In this case, the Control Unit in the
Car transmits a 21.85 kHz LF signal to wake the key up. The key then responds with a
cryptographic signal over RF.

In case the battery is low, car access is possible by means of an integrated mechanic emergency
key. The B8N is then to be placed into a dedicated slot inside the vehicles centre console to be
powered wireless by means of a magnetic field.

MARQUARDT GmbH
Schloßstraße 16
D 78 604 Rietheim - Weilheim

Initial Version

26.02.2016

Version

1.3

Department

TDE1-PU

Date

Editor

Mangesh Dhakane

Doc.-Nr.

Revision

26.03.2019

Page

Page 2 of 2

Technical Description B8N

NOTICE:

This device complies with Part 15 of the FCC Rules. Operation is subject to the

following two conditions:

(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that

may cause undesired operation.
Changes or modifications made to this equipment not expressly approved by Marquardt

GmbH may void the FCC authorization to operate this equipment.

Radiofrequency radiation exposure Information:

The radiated output power of the device is far below the FCC radio frequency exposure
limits. Nevertheless, the device shall be used in such a manner that the potential for human
contact during normal operation is minimized.