NFS-640 Systems
PN 15842:K 7/23/2002 67
APPENDIX Q NFS-640 Systems
Q.1 Capabilities
ACS annunciators communicate with the control panel on the ACS Mode
interface (TB13 on the NFS-640’s main circuit board). The ACS Mode interface
can annunciate control panel, zone, detector, module, and circuit status. The 832
panel annunciation points are divided into 13 fixed ACS Selection Groups
(labeled A to M) of 64 points; these are detailed in the panel's programming
guide (see Section 1.2 “Related Documentation” for part numbers). There are
also ten programmable annunciator groups which are programmed using
VeriFire™ Tools software. You can assign each ACS Selection Group to one or
more of the 32 annunciator addresses supported by the control panel.
This fire alarm control panel can use ACS annunciator addresses 1–32 without a
UDACT and ACS annunciator addresses 1–19 with a UDACT. Up to 32 devices
can be driven by the EIA-485 communications output, all addresses combined.
Two-way communications can occur with only one annunciator per address;
other devices on the same address must be configured as “Receive Only”.
Use the ACS Mode Interface to remotely use control panel functions
(Acknowledge, Alarm Silence, Alarm Activate, and System Reset) from a
remote location. The ACS Mode interface can also activate NACs, panel
circuits, and control modules from remote locations.
Q.2 Connecting the EIA-485 Circuit
EIA-485 wiring is connected to TB13 of the NFS-640 as
shown in the accompanying illustration.
See Section 3.3 “EIA-485 Wiring Specifications” for details
and notes about EIA-485 requirements.
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+
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acs400eia.cdr
TB13 on
NFS-640
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