Signaling Line Circuit (Slc); Notification Appliance Circuits; Serial Interface Circuit; Status Relays - Siemens FC901-U3 Installation, Operation And Maintenance Manual

Signaling Line Circuit (SLC)

The FC901 fire alarm control panel provides a signaling line circuit with the capacity of 50
addressable devices.

Notification Appliance Circuits

The FC901 control panel has two independent notification appliance circuit (NACs). It can be
configured as two Class B (Style Y) NACs or one Class A (Style Z) NAC. Each circuit can be
selected to give continuous output or one of five sounding patterns. There is also a system
coder capable of zone operation. All of the NACs are power limited and support
synchronization of listed devices using the Siemens sync protocol.
Serial Interface Circuit (UFP)
The FC901 control panel has a Serial Interface Circuit (UFP) that will drive up to 8 devices, eg.
remote LCD annunciators, remote LED driver/tabular annunciator or remote printer module.

Status Relays

Four relays with dry contacts are provided. Three relays are dedicated to alarm, supervisory,
and trouble conditions on the panel. The remaining relay is programmable. The relay contacts
are Form C and are rated for 2A@30VDC resistive.

Programming Port

A USB standard type B plug is provided for temporary connection to a computer for panel
programming and firmware download when using the FXS901-U3 System Configuration Tool.

DACT

The Digital Alarm Communication Transmitter (DACT) is integrated on the FC901 main board
and it will send control panel status information to a central or remote receiving station through
the Public Switched Telephone Network (PSTN).

OPTIONAL MODULES

City Tie Module (FCI2020-U1)

The city tie module provides local energy and polarity reversal connections. The polarity
reversal connections provide a trouble circuit and an alarm circuit with optional trouble output.
The city tie board mounts onto the main board.

Battery Sets

The FC901 control panel is designed to use only rechargeable sealed lead-acid batteries for
back-up power. Maximum battery charging capacity for the FC901 is 18AH.

Remote Printer Module (FCA2018-U1)

The Model FCA2018-U1 is a Universal Fire Protocol module that interfaces to a parallel
printer. It must be located where there is access to the fire system serial interface circuit
network. Up to 2 FCA2018-U1 may be addressed by the communication circuit.
The Model FCA2018-U1 is required whenever a logging printer is needed. It translates the
serial interface circuit messages into a standard printer interface. When the PAL-1 is used with
the RPM (FCA2018-U1), the RPM supervises the printer for on/off line, power on, paper out,
paper jam, and wiring fault conditions, as required by Underwriters Laboratories for NFPA 72
proprietary systems.
5