System addresses
A.2 EST3 Installation and Service Manual
Address format
The system derives the addresses it assigns from the panel’s
cabinet number and the LRM’s location within the panel (see
Figure A-1). The basic address format is PPCCDDDD, where:
PP is the panel’s cabinet number. The cabinet number is
assigned when the installer downloads the CPU database into the
panel.
CC is the LRM’s slot address. The cabinet number and the slot
address make up the LRM’s logical address.
DDDD is the device’s point address. The LRM’s logical address
and device’s point address make up the device or circuit’s logical
address.
The CRC Card Reader Controller and KPDISP Keypad Display
are devices supported by a 3-SAC module. However, they also
act as independent processors, and have their own pseudo points.
For this reason, their device numbers are further subdivided.
You can think of a SAC device as having this address format:
PPCCSSDD: SS is the CRC or KPDISP device number, as
assigned during LRM configuration. DD is a pseudo point within
the device.
Tip: To determine a local
panel's cabinet number,
use the LCD command
menu to get the status on
all the active points on the
panel. When prompted for
a panel number, enter 00.
The panel returns the
startup response point's
logical address. The first
two numbers of the logical
address is the cabinet
number.
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