Installation Manual
Table Of Contents
- 1 Important Information
- 2 Safety Instructions
- 3 Introduction
- 4 Technical Data
- 5 Installing
- 5.1 Mounting
- 5.2 Unmounting
- 5.3 Opening the Case
- 5.4 Closing the Case
- 5.5 Cabling
- 5.6 Grounding and Shielding
- 5.7 Connecting Power Supply
- 5.8 Ethernet Interface
- 5.9 RS-485 Host Interface
- 5.10 RS-232 Host Interface
- 5.11 DIL switch selector
- 5.12 RS-485 for extension modules
- 5.13 Wiegand Interface for Card Readers
- 5.14 Connecting Relay Outputs
- 5.15 Connecting Analog Input Devices
- 5.16 Tamper Protection
- 6 Operating
- 7 Appendix
AMC2 4W Installing | en 33
Bosch Sicherheitssysteme GmbH Installation manual | V 7.6 | 2008.12
5.9 RS-485 Host Interface
An RS-485 host system can consist of up to eight AMC2
controllers connected using 2- or 4-wire connection.
Figure 5.9 Configuration of a RS-485 host system
The following conditions apply for an RS-485 bus system:
– A bus system consists of a bus line and/or one or more
branch lines.
– Cable lengths exceeding 100 m (300 ft) must be installed
as bus lines.
– Branch lines are branching connections from a bus line.
1 = Host
2 = RS-232 connection
3 = AMC-MUX - converter
4 = RS-485 bus
5 = AMC2 controller