2 | AMC-4W Access Modular Controller
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Control/monitoring
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Granting or denying access
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Alarm switching
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Door status
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Reader operating status
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Internal alarm status
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Messages about the Access Engine
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Host queries
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Transaction data to be saved
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Errors and fault messages
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Alarm messages
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Power supply
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Reader
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Door opener
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Current feeds to contacts
Installation/Configuration Notes
Host ports
RS232 host interface
The Access Engine application administers up to 32
serial direct ports so that it is theoretically possible to
serially connect up to 32 AMC-4Ws directly.
Note As PCs only have 2 COM ports max. in
the standard configuration, the following
connection variants are to be favored for
configurations with more than 2
AMC-4Ws:
RS485 interface
If more than 2 AMC-4Ws are connected, the interface
converter AMC-MUX should be used.
The interface converter generates an RS485 bus (2 or
4-wire) out of a COM port, thereby enabling up to 8
AMC-4Ws to be connected at the distances typical of RS
485.
Alternatively, the RS485 host interface can be activated
in the AMC-4W via the jumper position (2 or 4-wire).
There are two connection points—one for the inbound bus
system, and one for the outbound bus system.
Volume limitations
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Please follow the planning guidelines for the Access
Engine when determining the max. number of access
controllers connected to an access control system as
well as the number of employees
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Max. 4 access points/entrances
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Max. 4 card readers
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Max. 3 peripheral units via internal RS485 bus
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Max. 200000 employees with memory
expansion AMC-CF-1024 (MB)
Card reader connections
Wiegand interface
The AMC-4W has 4 connections to connect up to 4 card
readers.
The card reader interfaces and door opener elements are
distributed to the 4 channels with 4 connectors points each.
The following definitions apply to Wiegand interfaces:
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10-wire interfaces (incl. shield)
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Max. 158 m cable length to card reader
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26-bit Wiegand format
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37-bit Wiegand format
Standard configuration of the Wiegand interface for the
card reader:
1 Reader power supply 12V+
2 Reader power supply 12V-
3 Data line 0
4 Data line 1
5 Shield
6 Green LED
7 Red LED
8 Audible alarm
9 Delay
10 Present card
Readers and door models
The AMC-4W administers the connected readers via pre-
defined door models.
Door models regulate in accordance with the security
requirements in force
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The number and usage category of the readers (input
and output reader, input reader and push-buttons etc.)
which are connected to the AMC4W.
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The number and usage category of the AMC inputs, e.g.
door status, request-to-exit push-buttons, turnstile
position, Sec.Sys., etc.
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The number and usage category of the AMC outputs,
e.g. door openers, man-trap contact, traffic light
control, etc.
The max. number of entrances to be administered by an
AMC-4W is ultimately determined by the door models used
and the readers and inputs/outputs required by the door
models.
Note When planning an access system, the first step
is therefore assigning the necessary or suitable
door models to all entrances which must be
monitored. Only then can the AMC reader
configuration be worked out.
Potential equalization — grounding
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If there are different earth potentials, they can be
equalized via jumper positions with a protective
earth.
•
A line (shielding, potential equalization line) may only
be connected to the protective earth at one point.
•
You will find more information on this topic in the
installation manual.
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