Equipment Configuration; Figure 3: Upper Circuit Board With Display (Top Side) - Bosch AMC-4W Installation Manual

Access Controller AMC-4W
3.1.

Equipment Configuration

Figure 3: Upper circuit board with display (top side)

1. Internal tamper contact
2. Fuseholder, not used in this application
3. Jumper: interface selector RS485 Host connection, RS485 two wire or
RS485 four wire (depends on external wiring)
4. DIL switch for RS485 address selection, protocol and RS232/RS485
selection
5. Configurable RS232 host interface (ribbon cable connector)
6. Reset push button
7. Jumper: Potential equalization between different mass systems and
protective earth (shield)
8. Configurable RS485 host interface (pluggable screw connector)
9. Lithium battery for buffering of static RAM and real time clock
(RTC). The battery shall be replaced by qualified personnel every ten
years or if indicated by an appropriate event.
Bosch Security Systems | V.3.1/2006-09
Description of the AMC-4W
Installation Guide 13