Installation Manual

Access control
The B6512 supports access control using the B901 Access Control Module. The B6512
supports up to 4 access doors.
Any of the following can grant access:
– Wiegand-style access control device (card reader) connected to the access control
module
– Request to enter (RTE) or request to exit (REX) input
– Unlock command on an SDI2 keypad (excluding fire keypads)
The control panel access control features can deny access when the system in On (armed).
The control panel can also grant access only to certain authorized users depending on
whether the area is all on, part on, or off. Programming for automatic disarming when
designated authorized users are granted access is also possible.
The Dual Authentication feature can optionally require passcode entry with presentation of
door credentials before access authorization is granted.
B901
The B901 Access Control Interface Module is a fully supervised, addressable SDI/SDI2 bus
device that allows access control integration for Bosch compatible control panels. This
module offers 14 programmable levels of access authority. Authority for access is controlled
by the user level, the group of the user, the time of day, the door state, and the area armed
state. Control each authority restriction through automatic and manual functions.
The module connects to a B6512 SDI2 bus or using the interconnect wiring connector. You
can connect more than one module to the control panel by wiring them in parallel. This
section includes basic installation instructions. For detailed installation instructions, refer to
the Access Control Module (B901) Installation and Operation Guide.
Address settings
Notice!
The module reads the address switch setting only during module power up. If you change the
setting after you apply power to the module, you must cycle the power to the module in order
for the new setting to take effect.
If multiple access control modules reside on the same system, each access control module
must have a unique address.
For valid addresses, refer to B901 address settings, page 151.
Supervision
With any failure to receive an expected response from the module, all keypads show a system
fault. The control panel sends a module trouble report to the central station (if configured for
module trouble reports).
Installation and control panel wiring (B901)
Ensure that there is enough power for the module and other powered devices you want
connected to the system.
Refer to On-board outputs, page 60.
15
15.1
15.1.1
15.1.2
15.1.3
Control Panel Access control | en 75
Bosch Security Systems, Inc. Installation and System Reference Guide 2016.05 | 14 | F.01U.287.180