LDM Series Instruction Manual — P/N 15885:H3 8/12/2019 65
AFP-300/400 Connections NFS2-640 (UL 9th), NFS-320 (UL 9th), AFP-300/400, (UL 8th) or NFS-640 (UL 8th)
F.4 AFP-300/400 Connections
The EIA-485 connections are made to TB4-1 (+) and TB4-2 (-) on the AFP-300/400. Filtered, nonresettable power for the LDM may be
obtained from TB2-1 (+) and TB2-2 (-) on the AFP-300/400.
For more information on annunciator operation and FACP programming under various specific applications, refer to the AFP-300/400
documents referenced in Section 1.3, “Related Documentation”, on page 7.
F.5 NFS-640 Connections
The EIA-485 connections are made to TB13 on the CPU-640 as shown. 24 VDC power-limited non-resettable power for the LDM is
available from TB7 on the CPU-640. Do not use the two pins on TB7 marked “resettable”.
For more information on annunciator operation and FACP programming under various specific applications, refer to the NFS-640 docu-
ments referenced in Section 1.3, “Related Documentation”, on page 7.
TB9
TB7
TB5
TB3
TB1
NEUTRA L
PO WER I N PUT- 120V, 60 Hz, and 24 VBATT
EARTH
HOT
BATT+
BATT-
TB2
+-+-+-
AFP-300/400
(+) EIA-485 TB4-1
(-) EIA-485 TB4-2
24 VDC Power (+) TB2-1
Common (-) TB2-2
MPS-400 Power Supply
not for use
with LDM
24 VDC Power (+)
TB7 TB13
Common (-)
EIA-485 (+)
EIA-485 (-)
CPU-640
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