Section 10: Emergency Voice System Operation; Overview; Loc Functionality; 1: Keys And Leds - Honeywell 6820 Manual

10.1 Overview

The 6820EVS control panel and accessories provides features to meet the requirements for a Mass Notification Systems as described in
NFPA 72 and is compliant with the UL 2572 standard. The EVS (Emergency Voice System) is integrated with the fire alarm and voice evac-
uation functions of the control panel. In a networked panel system, only one panel can be chosen to be the voice evacuation/EVS panel for
the site.
There are two ways for activating EVS in the 6820EVS panel:
EVS Point Activations
events cause output areas to activate based on mapping that is programmed into the system at installation. This is very similar to the tradi-
tional mapping that the fire system has utilized to date.
Manual LOC Activations
speak through a microphone. These selections are not pre-determined and allow the user to make system functionality decisions when the
event is actually happening. This requires the activation of Manual EVS State which bypasses EVS Point Activations. See Section 10.2.3.

10.2 LOC Functionality

An LOC (Local Operating Console) consists of either the EVS series panel (EVS-VCM Voice Control Module and the Fire Alarm Control
Panel) or the EVS-LOC (EVS-RVM Remote Voice Module and its associated 6860 keypad.) An LOC is created by adding an EVS-VCM or
EVS-RVM to the system and associating a keypad to it. The LOC provides eight buttons for activating the EVS messages, a button to gain
and request EVS Control, and a microphone for live paging. There can be up to 16 LOC devices in the system. In a networked panel system,
all of the LOCs must be connected through SBUS to the panel that includes the EVS-VCM.
10.2.1 Keys and LEDs
This section outlines the functionality of the keys and LEDs on the EVS-VCM and EVS-RVM expander modules.
EVS Control Key
Pressing the EVS Control Key will do one of two things:
1. Enter Message Mode of the LOC EVS interface (including trying to gain EVS Control if the user doesn't have it already).
2. Relinquish EVS Control if pressed while in Message Mode.
EVS Control LED
The EVS Control LED is used to indicate the status of EVS Control in the system. When the LED is on solid, the LOC has EVS Control
within the system. When the LED is blinking, another LOC has gained EVS Control in the system.
EVS Message Keys
EVS Message Keys are used in Message Mode to select which EVS Message is to be played. If pressed when the LOC does not have EVS
Control, the system will automatically try to gain EVS Control before allowing the EVS Event to be activated. See Section 10.2.2.
EVS Message LEDs
The red EVS Message LEDs indicate the active EVS Message and any previously active EVS messages. The green LEDs indicate the EVS
Message was selected in message mode and that the LOC has EVS control.
1. For EVS Point Activation, the red EVS Message LEDs will illuminate on each LOC to indicate which EVS messages have been
activated in automatic EVS state.
2. In Manual EVS State, the red EVS Message LEDs will indicate which EVS message has been activated at an LOC. See Section 10.2.3.
3. The green EVS Message LEDs will activate for the LOC that activated the EVS Message.
Select Keys
The Select Keys are used to toggle which output areas are active.
1. If Message Mode is active (see Section 10.2.5), the Select Keys will activate output which areas for the active message to be played in
(also activates the red Select Key LED).
NOTE: For LOC-activated emergency alarm events, if an area is programmed through mapping to be active, that area is automatically
selected and can not be deactivated using the Select Keys.
2. If Fire Page Mode is active (see Section 10.2.5), the Select Keys will toggle which areas the microphone audio is distributed to (also
toggles the green Select Key LED).
Select Key LEDs
The Select Key LEDs are used to indicate which output areas are active for a microphone page or system events.
• Green LEDs: active areas for microphone paging.
NOTE: These are only active when the microphone PTT (push-to-talk) is engaged.
• Red LEDs: active areas for system events.
6820/EVS Manual — P/N LS10144-001SK-E:E 4/6/2022

Section 10: Emergency Voice System Operation

EVS Point Activation involves using pre-determined EVS Alarm input points to activate EVS Alarm events. These
Manual LOC Activation involves using the LOC EVS interface to activate EVS Events, choose output areas, and
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