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Document 15342 Rev D1 07/24/97 P/N 15342:D1
Application Example #4: Two LED-10N Annunciators, 10 Alarm Only Relays and
20 Alarm and Trouble Relays (no system status relays)
Program the SFP-1024 at Level 3 addresses 02 - 03 for the proper address setting.
The address selected must be the highest or maximum address value selected on
any annunciator or ACM-8R connected to the EIA-485 port. (Refer to the Program-
ming Instructions Section 3 of the SFP-1024 Installation Manual P/N: 50475).
For this example, only one relay per SFP-1024 zone is required for the first set of
Alarm Only Relays, two relays per SFP-1024 zone is required for the second set of
Alarm and Trouble Relays and the ACM-8Rs are sharing the EIA-485 bus with two
LED-10Ns. Since ACM-8Rs are sharing the bus with two other devices, the address
setting for the first set of ACM-8Rs should be switches SW1 = 0 and SW2 = 3 for
address '03'. The address setting for the second set of ACM-8Rs should be switches
SW1 = 0 and SW2 = 4 for address '04'. Enter this highest address into the SFP-1024
Level 3 addresses 02 - 03.
Since each ACM-8R module contains eight relays, two ACM-8R modules are
required for 10 zones of Alarm Only Relays. In this example, these ACM-8Rs are set
to address '03'. Set the Mode Select switch SW4 for alarm only on both Alarm Only
ACM-8Rs (SW4-1 = ON). Set the first ACM-8R with address '03' for Receive Only
(SW4-2 = ON) and the second ACM-8R with address '03' for Receive/Transmit
(SW4-2 = OFF). Set switch SW3 on the first ACM-8R so that SW3-2 = ON and SW3-
5 = ON, and the remaining switches are OFF. Set SW3 on the second ACM-8R so
that SW3-3 = ON and SW3-5 = ON, and the remaining switches are OFF.
Three ACM-8R modules are required for 10 zones of Alarm and Trouble Relays (20
relays required). In this example, these ACM-8Rs are set to address '04'. Set the
Mode Select switch SW4 for alarm and trouble on all three ACM-8Rs addressed as
'04' (SW4-1 = OFF). Set the first two ACM-8Rs with address '04' for Receive Only
(SW4-2 = ON) and the third ACM-8R with address '04' for Receive/Transmit (SW4-2
= OFF). Set switch SW3 on the first ACM-8R so that SW3-3 = ON and SW3-5 = ON,
and the remaining switches are OFF. Set SW3 on the second ACM-8R so that SW3-
4 = ON and SW3-5 = ON, and the remaining switches are OFF. Set switch SW3 on
the third ACM-8R so that SW3-1 = ON and SW3-6 = ON, and the remaining switches
are OFF. Refer to Figure A-3 for an illustration of this application.
Note: Figure A-3 is provided as an application example and is not intended to be
used as a wiring diagram. Refer to Figure A-1 or the appropriate manuals for
detailed wiring information.
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