2.2.12.9
Instructions
Provide a typeset printed or typewritten instruction card mounted behind a
Lexan plastic or glass cover in a stainless steel or aluminum frame.
Install the frame in a conspicuous location observable from the remote fire
alarm control unit. [Install the frame in a conspicuous location
observable from the remote fire alarm control unit.] The card shall show
those steps to be taken by an operator when a signal is received as well as
the functional operation of the system under all conditions, normal, alarm,
supervisory, and trouble. The instructions shall be approved by the
Contracting Officer before being posted.
2.2.12.10
Walk Test
Each remote control unit shall have a walk test feature. When using this
feature, operation of initiating devices shall result in limited system
outputs, so that the notification appliances operate for only a few seconds
and the event is indicated on the system printer, but no other outputs
occur.
2.2.12.11
History Logging
In addition to the required printer output, the control panel shall have
the ability to store a minimum of 400 events in a log. These events shall
be stored in a battery-protected memory and shall remain in the memory
until the memory is downloaded or cleared manually. Resetting of the
control panel shall not clear the memory.
[2.2.13
Amplifiers, Preamplifiers, Tone Generators
Any amplifiers, preamplifiers, tone generators, digitalized voice generators,
and other hardware necessary for a complete, operational, textual audible
circuit conforming to NFPA 72 shall be housed in a fire alarm control unit,
terminal cabinet, or in the fire alarm control panel. The system shall
automatically operate and control all building fire alarm speakers except
those installed in the stairs and within elevator cabs. The speakers in
the stairs and elevator cabs shall operate only when the microphone is used
to deliver live messages. Each amplifier shall have two channels; one to
broadcast a message and the other for paging.
[2.2.13.1
Construction
Amplifiers shall utilize computer grade solid state components and shall be
provided with output protection devices sufficient to protect the amplifier
against any transient up to 10 times the highest rated voltage in the
system.
][2.2.13.2
Inputs
Each system shall be equipped with separate inputs from the tone generator,
digitalized voice driver and panel mounted microphone. Microphone inputs
shall be of the low impedance, balanced line type. Both microphone and
tone generator input shall be operational on any amplifier.
][2.2.13.3
Tone Generator
The tone generator shall be of the modular, plug-in type with securely
attached labels to identify the component as a tone generator and to
identify the specific tone it produces. The tone generator shall produce a
SECTION 13855N
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