Bosch AMC2 Series User manual

AMC2 Modular Controller
AMC2‑4R4
en Installation Manual

AMC2 Modular Controller Table of contents | en 3
Bosch Access Systems GmbH Installation Manual 2018-02 | AMC2-4R4 |
Table of contents
1Safety Instructions 4
1.1 Important Safety Notes 4
1.2 Safety Precautions 5
1.3 Unpacking 6
2Important Information 7
2.1 Explanation of symbols in this document 7
2.2 Internet 7
3Introduction 8
3.1 Description 8
3.2 Equipment Configuration 9
3.3 Performance Characteristics 11
3.4 System Overview 12
4Installing 13
4.1 Mounting 13
4.2 Unmounting 14
4.3 Opening the Case 15
4.4 Closing the Case 16
4.5 Cabling 16
4.5.1 Conductor data for power to AMC2 16
4.6 Grounding and Shielding 18
4.6.1 Grounding for Host Interface 18
4.6.2 Grounding for Extension Interface 19
4.6.3 Grounding for Bus Interfaces 19
4.7 Connecting Power Supply 20
4.8 Ethernet Host Interface 21
4.9 RS-485 Host Interface 22
4.9.1 RS-485 Two Wire Connection 23
4.9.2 RS-485 Four Wire Connection 24
4.10 RS-232 Host Interface 25
4.11 DIL switch selector 26
4.11.1 Host settings 26
4.12 RS-485 for extension modules 27
4.13 RS-485 Interface for Card Readers 29
4.14 Connecting Relay Outputs 30
4.15 Connecting Analog Input Devices 33
4.16 Tamper Protection 35
5Operating 36
5.1 Status Display of the AMC2 36
5.2 Configuring the Ethernet Interface 38
5.3 Troubleshooting 39
5.3.1 Resetting the Software 39
5.3.2 Resetting the Device to Factory Default 40
6Technical Data 41
7Appendices 44
7.1 Connecting Diagrams 44
Index 49

4en | Safety Instructions AMC2 Modular Controller
2018-02 | AMC2-4R4 | Installation Manual Bosch Access Systems GmbH
1 Safety Instructions
1.1 Important Safety Notes
1. Read, follow, and retain instructions - All safety and operating instructions must be read
and followed properly before putting the unit into operation. Retain instructions for
future reference.
2. Do not ignore warnings - Adhere to all warnings on the unit and in the operating
instructions.
3. Accessories - Use only accessories recommended by the manufacturer or those sold with
the product. Accessories not recommended by the manufacturer must not be used, as
they may cause hazards.
4. Installation precautions - Do not place this unit on an unstable stand, tripod, bracket, or
mount. The unit may fall, causing serious injury to persons and damage to the unit. Mount
the unit according to the manufacturer’s instructions.
5. Service - Do not attempt to service this unit by yourself. Opening or removing covers may
expose you to dangerous voltages or other hazards. Refer all servicing to qualified service
personnel.
6. Damage which requires service - Disconnect the unit from the main AC or DC power
source and refer servicing to qualified service personnel under the following conditions:
– If the power supply cord or plug is damaged.
– If liquid has been spilled or an object has fallen into the unit.
– If the unit has been exposed to water and/or inclement weather (rain, snow, etc.).
– If the unit does not operate normally when following the operating instructions.
Adjust only those controls specified in the operating instructions. Improper
adjustment of other controls may result in damage, and require extensive work by a
qualified technician to restore the unit to normal operation.
– If the unit has been dropped or the cabinet damaged.
– If the unit exhibits a distinct change in performance.
7. Replacement parts - If replacement parts are required, the service technician must use
only replacement parts that are specified by the manufacturer. Unauthorized
replacements may result in fire, electrical shock or other hazards.
8. Safety check - Upon completion of service or repair work on the unit, ask the service
technician to perform safety checks to ensure that the unit operates properly
9. Power sources - Operate the unit only from the type of power source indicated on the
label. If unsure of the type of power supply to use, contact your dealer
10. Lightning - For added protection during electrical storms external lightning conductors
can be installed. This prevents power surges from damaging the unit.
11. The units should be installed in locations with restricted access.

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1.2 Safety Precautions
Read instructions!
Before working with the AMC2 device, read these instructions carefully. Make sure you have
understood all information described in this document.
!
Warning!
Risk of electric shock
External power supplies must be installed and put into service by qualified personnel.
Ensure compliance with the relevant regulations.
Ground the controller.
Disconnect both AC and battery power supply before working on the controller.
!
Warning!
Risk of fire
Installation of the AMC2 device must comply with any local fire, health, and safety
regulations. A secured door that may be part of an escape route from an area must be
installed with:
Install a fail-safe lock (A), so that the door will be released if power fails. Ideally, use a
magnetic lock.
Install a normally-closed break glass or a manual pull (B) in the lock supply wiring, so that in
an emergency the fail-safe lock can be immediately powered down.
!
Warning!
Risk of explosion of Lithium battery
The battery can explode if it is replaced incorrectly.
Replace only with the same type as recommended by the manufacturer.
Dispose used batteries according to the battery manufacturer’s instructions.
Notice!
Risk of damage to equipment
Protect the hardware from electrostatic discharge by observing ESD instructions before
unpacking of touching connectors of electronics.
Always switch off power of the AMC2 device before modifying the installation.
Do not connect or disconnect plug connectors, data cables, or screw connectors while power
is on.
Rules and Conditions
There are no specific requirements as for selling and delivery. As for storage and safe
operation, the environmental temperature should not exceed the range of 0°C to 50°C.
Disposal
Your Bosch product is designed and manufactured with high-quality materials and
components which can be recycled and reused.
This symbol means that electrical and electronic equipment, at their end-of-life, should be
disposed of separately from your household waste.

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In the European Union, there are separate collection systems for used electrical and electronic
products. Please dispose of this equipment at your local community waste collection/recycling
center.
1.3 Unpacking
Check the packaging for visible damage. If anything has been damaged during transport,
please inform the transport agency.
Unpack the unit carefully. This is an electronic device that must be handled with care to avoid
damage. Do not attempt to put the unit into operation if components are damaged.
If any parts are missing, inform your customer service representative or a Bosch Security
Systems salesperson. The shipping carton is the safest transport container for the unit. Store
it and the other packaging material for future use. If the unit has to be sent back, use the
original packaging.

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2 Important Information
Remarks
This hardware is part of a security system. Access should be limited to authorized persons
only.
Some states do not allow the exclusion or limitation of implied warranties, or limitation of
liability for incidental or consequential damages, hence the above limitation or exclusion might
not apply to you.
Bosch Security Systems retains all rights not expressly granted. Nothing in this license
constitutes a waiver of Bosch’s rights under the U.S. Copyright laws or any other federal or
state law.
If you have any questions concerning this license, please, write to:
Bosch Sicherheitssysteme GmbH
Robert-Bosch-Ring 5
85630 Grasbrunn
Germany.
2.1 Explanation of symbols in this document
Throughout this document, warning messages, important notes, and helpful tips are presented
for the reader. These appear as follows:
Danger!
Cause of Hazard
Indicates a hazardous situation, which, if not avoided, will result in death or serious injury.
!
Warning!
Cause of Hazard
Indicates a hazardous situation, which, if not avoided, could result in death or serious injury.
!
Caution!
Cause of Hazard
Indicates a hazardous situation, which, if not avoided, could result in minor or moderate
injury.
Notice!
Cause of Hazard
Important Notes that must be followed to avoid damage to the equipment or environment,
and to ensure successful operation and programming.
Tips and shortcuts may also be included in such notes.
2.2 Internet
If you are interested in further information on this product or information on other products,
please consult our website at http://www.boschsecurity.com.

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2018-02 | AMC2-4R4 | Installation Manual Bosch Access Systems GmbH
3 Introduction
3.1 Description
The APC-AMC2-4R4CF (also called AMC2-4R4, AMC2, or controller) is equipped with four
independent interfaces for RS-485 type readers. It is able to control up to four doors with a
reader in each direction and up to eight doors with a reader in one direction only.
Figure3.1: The Access Modular Controller AMC2-4R4
All necessary information for access verification is stored in a battery buffered on-board
memory and a Compact Flash (CF) memory card. This guarantees autonomous access
decisions and complete access registrations even if the management host system is offline.
The built in compact flash card provides adequate storage capability for cardholders and
events.
The AMC2-4R4 electronics are completely covered by a plastic housing. The liquid crystal
display provides all important status information.
Using the AMC2-4R4 gives you the full functionality and the offline capability of a complete
access control system in each room. This leads to an excellent reliability and a very high
redundancy without extra cost.
Figure3.2: The AMC2-4R4 in a four door safety lock
The AMC2-4R4 can communicate upstream to the host computer using RS-485 multi‑dropped,
RS-232 or 10/100 Mbit/s Ethernet. It has eight analog input devices and eight relay outputs.
With its analog input devices, the AMC2-4R4 verifies, for example, if a lock is closed or open.
The relay outputs can be used to activate lock mechanisms if access is granted, or activate the

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burglar alarm system if an intrusion or system alert is detected. If the eight inputs and eight
outputs on board are not enough to configure the system, up to three additional extensions
(AMC2-8IOE, AMC2-16IE, or AMC2-16IOE) can be connected. The extensions offer 8 or 16
additional inputs and outputs.
The setup procedure for an AMC2-4R4 is made very simple and fast by the use of door
templates. Once selected, all the inputs and outputs are predefined. These settings can be
changed to choose every free contact of the controller or a connected extension.
3.2 Equipment Configuration
Figure3.3: Upper circuit board with display (top side)
1(N.A.)
2DIL switch for RS-485 address selection , protocol, and RS-232/RS-485 selection.
3Lithium battery for buffering of static RAM and real time clock (RTC). The battery life
is estimated at 10 years, nevertheless an error message is generated if the voltage
sinks below a preset minimum level.
NOTICE: In order to avoid an error message caused by an earlier voltage drop we
suggest to replace the battery every 8 years. Spare part: VARTA CR 2032 PCB.
4Reset push button - reachable through the casing using a screwdriver
5Liquid Crystal Display
6Push button, available on top of the housing, to select different display modes
7Jumper: Equalization of potential between different systems and earth ground
(shield)
8Jumper: Interface selector RS-485 host connection, RS-485 two wire or RS-485 four
wire (depends on external wiring)
9Configurable RS-485 host interface
10 Docking port for compact flash memory
11 Configurable RS-232 host interface (ribbon cable connector)
12 Configurable 10/100 Mbit/s Ethernet host interface

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Figure3.4: Overview - Interfaces
13 RS-485 extension module bus
14 External tamper contact
15 Connector for power supply
16 RS-485 interfaces for up to 8 card readers
17 Connectors for eight analog inputs
18 Connectors for eight relay outputs
Notice!
All connectors, with the exception of the RS-232 and Ethernet host interface, are pluggable
screw clamp terminals.
Figure3.5: Jumper at the bottom side

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Figure3.6: Jumper at the bottom side
19 Jumper for setting either voltage free relay output (“dry” mode) or looped-in voltage
from the AMC2 internal power supply (“wet” mode).
20 Jumper: Potential equalization between different systems and earth ground (shield)
for the bus systems.
21 Jumper: Equalization of potential between different systems and earth ground
(shield) for the extension interface.
3.3 Performance Characteristics
– Intelligent access manager for 1 - 8 entrances (for example doors, man traps, barriers)
– Host address selectable using DIL sliding switch.
– Four possible configurable host interfaces:
– Ethernet (= standard)
– RS-485 2-wire
– RS-485 4-wire
– RS-232
– Reader interfaces
– four RS-485 interfaces
– 8 relay outputs
– voltage free, power is supplied externally (dry mode)
– powered by internal power supply (wet mode)
– 8 analog inputs with internal power supply
– Battery buffered SRAM and real time clock (RTC)
– Pluggable Compact Flash card
– Liquid Crystal Display
– Transfer rate host interface RS-485: 38,4 kBit/s
– Transfer rate host interface RS-232: 38,4 kBit/s
– Transfer rate host interface Ethernet: 10/100 Mbit/s
– Transfer rate to the extension interface: 9,6 kBit/s
– Transfer rate reader interface RS-485: 9,6kBit/s
– Self regulating transmit/receive switching
– Supply voltage: 10 V to 14 Vdc,
– Max current load: 3A
– Tamper contact for external covers

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Notice!
If an external power supply is used, this should also guarantee an uninterruptable power
supply (UPS). Example: Bosch power supply APS-PSU-60 (F.01U.282.970).
3.4 System Overview
The Access Controller AMC2-4R4 is connected between the management host system and
different peripheral devices. By default, a management host system is connected using
Ethernet. A management host connection using RS-485 or RS-232 is also possible.
Corresponding to the available interfaces, one AMC2 can be connected to each COM port
using RS-232 mode. In RS-485 mode, up to eight access controllers can be combined on one
party line.
Figure3.7: System overview
1 = Host
2 = AMC2-4R4
3 = Card reader (1 - 8)
4 = Communication and power supply
5 = Ethernet
System configurations for Access Control applications.
– The minimum configuration consists of:
– one PC with system software,
– one AMC2 controller,
– one AMC power supply,
– one AMC enclosure.
– The maximum configuration depends on the system software,
Using RS-485 reader interfaces, up to eight peripheral devices can be connected to each
AMC2. The four reader interfaces are divided into two buses. Interface 1 and 2 are on one bus,
and interfaces 3 and 4 are on the other bus. With this arrangement, you can connect all
readers to one interface.
The extension interface supports up to three additional I/O boards (AMC2-8IOE, AMC2-16IE,
or AMC2-16IOE). All extension boards are controlled by the AMC2 and are freely combinable.

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4 Installing
4.1 Mounting
The AMC2-4R4 can be attached on a standard 35mm (1.377in.) mounting rail using a snap-in
mechanism. Attach the AMC2-4R4 into the upper edge of the mounting rail [1], then push
down the device and snap it onto the rail by pushing it towards the back [2].
Figure4.1: Mounting the AMC2 on a mounting rail

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4.2 Unmounting
Notice!
To remove the AMC2-4R4 from a mounting rail, first remove all pluggable connectors.
Push down the AMC2-4R4 until the lower edge snaps out of the mounting rail [1]. Pull the
lower end of the AMC2-4R4 from the mounting rail [2].
Figure4.2: Unmounting the AMC2 from a mounting rail

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4.3 Opening the Case
Notice!
To open the AMC2-4R4, first remove all pluggable connectors.
The AMC2-4R4 case consists of a top cover mounted with a two-point snap-in closure on a
chassis. To open the case, push down the two snap-ins with a screwdriver, then swing the
cover down.
Figure4.3: Opening the AMC2 case

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4.4 Closing the Case
Before aligning the covers, unplug any pluggable screw connectors. Insert the hooks on the
lower edge of the front cover into the lugs on lower edge of the plastic back cover [1]. Please
ensure that the BOSCH logo is not upside-down. The upper edge of the front cover now aligns
with the two-point snap-in closures on the upper edge of the back cover [2], and may thus be
clicked gently into place.
Hence the closing process is the reverse of the opening process.
Figure4.4: Closing the case
Notice!
Risk of damage to equipment
If excessive force is required to close the front cover then it is probably incorrectly hooked
into the back cover. In such cases the display ’Dialog’ button in the front cover will be
misaligned and will not function correctly.
4.5 Cabling
Notice!
Risk of malfunction
The cables used in the AMC2-4R4 access control system are not prone to electrical
interference. However, you should avoid routing cables close to heavy load switching cables
and equipment. If this is unavoidable, cross the cable at right angles every 1 to 2 m (3 to 6 ft)
to reduce interference.
4.5.1 Conductor data for power to AMC2
With the calculation below you can find out which cable type must be used. If you connect the
power supply and the AMC-device with the delivered cable set from the enclosure the
calculation is not necessary.
For distances below 25m (75ft) use AWG18 conductors (1mm²). For longer distances, install
an additional power supply close to the AMC2 controller.
Please, calculate the voltage drop by checking the conductor specifications for characteristic
resistance values. The voltage drop shall not exceed 2V.
Example:

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Length = 100 m/328 ft
U = 12V, I = 1A, maximum UDrop = 2V
i.e. RAWG18 (acc. specs) = 6.385 or 20,948
UDrop = 20,948 x 0.1 km x 1A = 2.1V
UDrop = 6.385 x 328 ft x 1A = 2.1V
Critical condition! Install the power supply closer to the controller.
Notice!
These specifications apply to power supply, readers, relay outputs, and extension interface.
Regarding inputs, specific voltage-drop values need to be taken into account. Refer to
Connecting Analog Input Devices, page 33.

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4.6 Grounding and Shielding
The main grounding point at the AMC2-4R4 is connected to pin 2 of the power supply
connector - see Connecting Diagrams, page 44.
It is good practice to shield all wires carrying low level signals.
The AMC2-4R4 allows you to create a central ground or shielding point, simply by setting
certain jumpers. Set these jumpers only if grounding or shielding is not achieved by other
means.
Notice!
Risk of malfunction
Ensure that no ground loops are formed.
Notice!
In general the following apply:
If the devices have their own power supplies, the shielding is applied to one side only. The
free end should be insulated to avoid inadvertent connections.
If one device is fed power by another, the cable shielding should be applied to both sides.
4.6.1 Grounding for Host Interface
Figure4.5: Location of ground jumper RS-485 host interface
The internal ground of the AMC2-4R4 is always connected with the ground of the RS-485 host.
The jumper setting 1 shows the factory settings.
The jumper setting A1 shows the factory settings.
Jumper JP1 connects the internal ground of the AMC2-4R4 to the ground of the RS-485 host
interface.
Jumper JP2 manages the signal ground.
Settings for jumper JP1:
If the ground conductor and the shield on the host are not connected and ...
– no party line exists, the jumper JP1 is set (=A2)
– a party line exists, the jumper JP1 is set at the first device, only (=A2)
Settings for jumper JP2:

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If the ground conductor and the shield on the host are not connected and ...
– no party line exists, the jumper 2 is set (= A3)
– a party line exists and signal ground is connected, the jumper 2 is set at the first device,
only (= A3)
– a party line exists and signal ground is not connected, the jumper 2 is set at all devices (=
A3)
Notice!
If the AMC2-4R4 is set to RS-232 mode, set jumper JP1 (=A2).
4.6.2 Grounding for Extension Interface
Figure4.6: Location of ground jumper bottom side
Jumper B connects the internal ground of the AMC2-4R4 to the RS-485 ground of the slave
interface. Only set jumper B (B2) if the AMC2-4R4 powers all other peripheral devices directly
connected to it.
4.6.3 Grounding for Bus Interfaces
Figure4.7: Location of ground jumper bus interfaces
Jumper C (for the second bus) and jumper D (for the first bus) connects the internal ground
of the AMC2 to the RS-485 ground of the bus. Only set jumper C and D (C2 or D2) if the AMC2
powers all other peripheral devices which are directly connected to the AMC2.

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4.7 Connecting Power Supply
Connect the power supply to the POWER 7-pin pluggable screw connector. Refer to
Connecting Diagrams, page 44 for a complete diagram of the power supply connector.
Figure4.8: Location of the power supply connector
Connect an external power supply (10 - 14 Vdc) for the AMC2 device at pin 1 (positive) and
pin 3 (0 V) of the pluggable screw connector.
If an uninterruptible power supply (UPS) is used, the relay output for power good signals from
the UPS is connected to the following pins:
– pin 4 and 7 for power good AC
– pin 5 and 7 for power good Battery
– pin 6 and 7 for power good DC
Otherwise these pins must be short-circuited.