Bosch AMC MUX User manual

AMC MUX and AMC MUX-EXT
ACX-AMC-MUX | ACX-AMC-MUXE
en Installation manual

AMC MUX and AMC MUX-EXT | en 3
Bosch Security Systems Installation manual F.01U.012.855 | V.3 | 2006.08
Remarks
This hardware is part of a security system. Access shall be lim-
ited to authorized persons only.
Some states do not allow the exclusion or limitation of implied
warranties, or limitation of liability for incidental or consequen-
tial damages, so 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 Access Systems GmbH
Adenauerstr. 20 / A3
D-52146 Würselen
Germany.

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Table of Contents
1 Please read carefully 7
1.1 Explanation of Used Symbols 7
1.2 Internet 7
2 Safety Instructions 8
2.1 Important Safety Notes 8
2.2 FCC & ICES Information 10
2.3 Safety Precautions 11
2.4 Unpacking 12
3Abstract 13
4 Functional Description 14
4.1 Extension AMC MUX-EXT 15
4.2 Features 17
4.3 Applications 17
5 Technical Data 19
6 Connection Instructions 21
6.1 Power Supply 21
6.2 RS-232 Interface 21
6.3 RS-485/RS-422 Interface 24
6.3.1 RS-485 2-Wire Interface 24
6.3.2 RS-485 4-Wire/RS-422 Interface 26
7 Annex 29
7.1 Legend 29
7.2 Order Code 29
7.3 Scope of Supply 29
8Index 30

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AMC MUX and AMC MUX-EXT Please read carefully | en 7
Bosch Security Systems Installation manual F.01U.012.855 | V.3 | 2006.08
1 Please read carefully
1.1 Explanation of Used Symbols
Throughout this document, helpful tips, important notes, cau-
tions and warnings will be presented for the reader to keep in
mind. These appear different from the rest of the text as fol-
lows:
1.2 Internet
If you are interested in further information on this product or
information on other products, please, refer to our website at
http://www.bosch-security-systems.com.
!
CAUTION! or WARNING!
These warn the operator that damage to the program or equip-
ment might occur.
i
NOTE!
Important Notes – must be followed for successful operation
and programming. Tips and shortcuts might also be included
here.

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2 Safety Instructions
2.1 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. Consider all 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 shall 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. Cleaning - Disconnect the unit from power before cleaning.
Follow any instructions provided with the unit. Generally,
using a damp cloth for cleaning is sufficient. Do not use liq-
uid cleaners or aerosol cleaners.
6. 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.
7. Damage Requiring Service - Disconnect the unit from the
main AC or DC power source and refer servicing to quali-
fied service personnel under the following conditions:
•When 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 inclem-
ent weather (rain, snow, etc.).
•If the unit does not operate normally, when following
the operating instructions. Adjust only those controls

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Bosch Security Systems Installation manual F.01U.012.855 | V.3 | 2006.08
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,
this indicates that service is needed.
8. Replacement Parts - When replacement parts are
required, the service technician shall use replacement
parts that are specified by the manufacturer. Unauthorized
substitutions may result in fire, electrical shock or other
hazards.
9. 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
10. 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
•For units intended to operate from battery power,
refer to the operating instructions.
•For units intended to operate with External Power
Supplies, use only the recommended approved power
supplies.
•For units intended to operate with a limited power
source, this power source must comply with EN/UL
60950. Substitutions may damage the unit or cause
fire or shock.
•For units intended to operate at 12 VDC normal input
voltage is 12 VDC. Voltages applied to the unit’s
power input shall not exceed 15 VDC. User-supplied
wiring, from the 12 VDC power supply to the unit,
must be in compliance with electrical codes (Class 2
power levels). Do not ground the 12 VDC supply at the
terminals or at the unit’s power supply terminals.
11. Lightning - For added protection during a lightning storm,
or when this unit is left unused for long periods of time,
disconnect the unit from power. This will prevent damage

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to the unit due to lightning and excessive power line
surges.
12. Restricted Access Locations are required for the installa-
tion.
2.2 FCC & ICES Information
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.
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the
FCC rules. The limits are designed to provide reasonable pro-
tection against harmful interference in a residental installation.
This equipment generates, uses and can radiate radio fre-
quency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio com-
munications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one
or more of the following measures:
1. Reorient or relocare receiving antenna
2. Increase the separation between the equipment and the
receiver
3. Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
4. Consult the dealer or an experienced radio/TV technician
for help

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2.3 Safety Precautions
!
Read instructions!
Before working with the AMC MUX, 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. Compliance with the relevant regula-
tions must be ensured.
!
Warning! Risk of damaging equipment!
•Always switch off power of the AMC MUX before mod-
ifying the installation.
•Do not connect or disconnect plug connectors, data
cables or screw connectors while power is on!
!
Health and Safety
Installation of the AMC MUX 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:
•A fail-safe lock (A). So that the door will be released if
power fails. Ideally, a magnetic lock should be used as
these are less likely to jam or seize.
•A normally-closed break-glass or manual pull (B) in the
lock supply wiring, so that in an emergency the fail-
safe lock can be immediately powered down.

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2.4 Unpacking
Check the packaging for visual damage. If anything has been
damaged during transport, make the transport agency aware of
this.
Carefully unpack the unit. 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 parts are missing, inform your customer service representa-
tive or a Bosch Security Systems salesperson. The shipping car-
ton 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.
!
CAUTION!
You must ground the AMC MUX. Disconnect both AC and bat-
tery power supply before working on the controller.
!
Warning! Risk of damage!
Protect the hardware from electrostatic discharge by observing
ESD instructions before unpacking or touching connectors or
electronics.

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3 Abstract
The AMC MUX rail mountable module converts RS-232 signals
into bi-directional RS-485-2/4-wire or RS-422. The AMC MUX is
designed for industrial applications in a control cabinet or
switchbox. If expansion to eight RS-485 interfaces is required,
use the AMC MUX-EXT expansion module.
A power supply that provides 10 VDC to 30 VDC is required.

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4 Functional Description
The module converts RS-232 signals to RS-485 or RS-422. Refer
to Figure for the following features:
1. Power supply providing 10V DC to 30V DC
2. Red LED: RS-485/RS-422 Receive Data (RD)
3. Yellow LED: RS-485/RS-422 Transmit Data (TD)
4. Green LED: Good power supplied (VCC)
5. RS-232 connector
6. RS-485/RS-422-connector
7. Mounting rail attachment (DIN EN 50 022)
8. AMC MUX-EXT expansion module connector
Fig. 4.1 Components of the AMC MUX
The RS-485/RS-422 circuits are electrically separated from the
RS-232 circuit and from the power supply.

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4.1 Extension AMC MUX-EXT
Fig. 4.2 AMC MUX with an connected extension AMC MUX-EXT
You can increase the number of RS-485 interfaces up to eight
by using the AMC MUX-EXT expansion module for each addi-
tional interface. Connect the AMC MUX and AMC MUX-EXT
using the plug-and-socket connection. (Figure 4.2). The AMC
MUX module provides power and RS-232 signals to the AMC
MUX-EXT modules. Connect the extension modules on either
the right or left sides of the AMC MUX module.

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Fig. 4.3 Host Communication to AMC MUX/AMC MUX-EXT
The following conditions apply to RS-485 Bus:
– Maximum of eight AMC2 4W per RS-232 to RS-485 multi-
plexer connection.
– AMC MUX multiplexer converts RS-232 to RS-485 for up to
1200m (4000 ft) wire runs to AMC2 4W controllers.
– Each additional AMC MUX-EXT plugged into allows for an
additional 1200m (4000 ft) bus extension.
– Up to seven AMC MUX-EXT can be plugged to an AMC MUX.
– RS-485 branches from bus to AMC2 4W allowed up to
100m (300 ft).

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4.2 Features
– There are three configurable operation modes:
•RS-232 ³´ RS-485 2-wire
•RS-232 ³´ RS-485 4-wire
•RS-232 ³´ RS-422
– Data rates: 9.6 / 19,2 / 38,4 / 57,6 or 115,2kbps
– Self-controlling transmission/reception switch
– Electrical isolation between RS-232 and RS-485/RS-422
– Input power from 10V DC to 30V DC
– Low power consumption
– DIN rail mountable
– Connect up to eight RS-485 interfaces using AMC MUX-EXT
expansion modules. Star wiring up to 1200m (4000ft)
cable length is acceptable.
4.3 Applications
You can install the AMC MUX module in different places in the
system. One option is to convert the COM interface of the PC
into RS-485/RS-422 (Figure 4.4).
Fig. 4.4 Convertion RS-232 to RS-485/RS-422
In Figure 4.4, one device is connected. By using a bus protocol,
you can connect more then one device - up to eight (Figure 4.5).

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Fig. 4.5 RS-485 bus structure
Another option is to provide an additional conversion from RS-
485/RS-422 back to RS-232 on the remote device (Figure 4.6).
Fig. 4.6 Convertion RS-485/RS-422 to RS-232
By using a bus protocol, you can provide the additional conver-
sion back to RS-232 for multiple devices (Figure 4.7).
Fig. 4.7 Convertion RS-485/RS-422 to RS-232 in a bus structure

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5 Technical Data
Hardware – 1 RS-232 interface
– 1 RS-485/RS-422 interface
with ESD-protection
– Integrated DC-to-DC con-
verter
Power supply 10V DC to 30V DC
Power consumption 530 mW (maximum)
RS-232 interface Transmission protocol:
Transparent
Encoding options:
DCE/DTE switch using jumper
Transfer rate in kbps:
9,6 / 19,2 / 38,4 / 57,6 / 115,2
Cable length:
Up to 15 m (49 ft) shielded
Connectors:
9 pin SUB-D
RS-485/RS-422 interface Interface standards:
– RS-485 2-wire, half duplex
– RS-485 4-wire, half duplex
– RS-422, half/full duplex,
– DIL switch configurable
Data format/encoding:
UART/NRZ
Signal length:
Transparent
Transfer rate in kbps:
According to RS-232
Cable length:
Up to 1200 m (3937 ft),
twisted pair, shielded

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Fig. 5.1 Dimensions of the AMC MUX and AMC MUX-EXT
This product was developed and produced according to the
EMC code 89/336/ EWG and the low-voltage code 73/23/EWG.
Data flow direction switch:
Self-controlling or RS-232 RTS/
CTS controlled
DIL switch configurable
Connection:
Pluggable screw-clamps
Electrical isolation RS-232//RS-485
Protection class IP 20
Wire gauge 0.2 to 2.5 mm2(AWG 24 to 12)
Temperature range 0 °C to +55 °C
(0 °F to +131 °F)
Relative humidity up to 95%, non-condensing
Housing material:
polyamide PA 6.6
flammability class V0 (UL94)
dimensions (W/H/D):
99/115.2/22.6 mm
(3.9/4.5/0.9) in (Figure 5.1)
Weight 130 g (4.6 oz)