Access System Manager ASM-24 (Rev 1.2) Installation & Application Guide
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Access System Manager
RUN
<Default>
CLEAR
SRAM MEMORY CLEAR
A jumper is provided so it is possible when necessary to clear out the
SRAM, where the device database resides (including object definitions,
GCL programming, and trend data).
Run
<
Default
>
"
The battery is connected in circuit and maintains
SRAM memory, even when 24 VAC power is removed from the
product, thereby maintaining both the integrity of the database
and the internal time of the on-board Real Time Clock (for as
long as the battery lasts). This jumper position is required
before applying power for the device to operate properly.
Clear
"
The battery is removed from circuit and the SRAM memory is
cleared, dumping the database. The internal time of the on-
board Real Time Clock is also reset. This jumper position is
also recommended if the product will be stored for prolonged
periods.
C
ONTROLLER
A
DDRESS
DIP S
WITCHES
Each individual DIP switch represents a pre-defined value (as printed on PCB beside the address block),
which added together forms the device address.
M
OUNTING
The Access Control Manager is designed for quick and easy mounting in a number of locations. Normally
this should be within a secured enclosure.
When mounting an ASM, you should always mount an Access Door Module within the same cabinet so a
tamper switch can be wired to the Door Module, giving indication of someone entering the enclosure and
possibly tampering with the Door Module and the ASM. Any standard switch that will mount inside the
enclosure can be used. The tamper switch can be wired so that the circuit is monitored using an EOL circuit
(see ADM-2W704 Installation Guide under Input Wiring for details).
P
OWER
W
IRING
The Access System Manager is designed to be powered by either a 24VAC Transformer rated at 40 VA or
the DC Power Out (+12VDC @ 0.25 A) terminal of the ADM-2W704.
WARNING
The Access System Manager needs
to be connected properly
from the DC Power Out terminal
of the Access Door Module. If you do not connect
ground with ground
, it may damage the
ASM controller and it will not function properly.
