2: Gaining Evs Control; 3: Manual Evs - Honeywell 6820 Manual

Emergency Voice System Operation
All Call
button
Ready To
Talk LED
Non-Active
Call button
output group
select buttons
10.2.2 Gaining EVS Control
When attempting to gain EVS Control, there are three things that govern whether or not EVS Control can be obtained:
1. LOC Priority.
2. LOC Lockout.
3. User profile access control.
LOC Priority
LOCs are assigned (through panel or HFSS programming of the EVS-VCM and EVS-RVM) an LOC priority of low, normal, or high. LOCs
with a higher priority are always able to gain control from a lower priority LOC.
LOC Lockout
When LOCs are programmed to the same priority, the setting LOC lockout applies. LOC lockout will not allow an LOC to gain EVS Control
from the LOC with EVS Control until one of three things happen:
1. The LOC lockout timer expires. Once the LOC lockout timer expires, an attempt to gain EVS Control can be made again.
NOTE: The lockout timer must be programmed to expire sometime other than Never.
2. The user at the second LOC requests EVS Control from the LOC with EVS Control and that LOC grants the request. (See Section
10.2.7). If the EVS lockout timer expires while an EVS Control request is in progress, the system will automatically pass EVS Control
to the requesting LOC.
3. The user at the second LOC enters an access code with the EVS Super User profile option.
The LOC lockout timer can be set between immediate and 12 hours in increments of 1 second or it can be set to never expire. The default set-
ting is 30 seconds. The LOC lockout timer is restarted upon any key press at the LOC with EVS control. The LOC lockout timer is cleared
when EVS Control is relinquished.
User Profile Access Control
The user will need to enter an access code containing the EVS Control Request or EVS Super User profile option to gain EVS Control. EVS
Control Request and EVS Super User profile options will be mutually exclusive to the system. If the access code has EVS Super User, the
EVS Control Request is ignored and activations by that user are always as EVS Super User.
10.2.3 Manual EVS
After gaining EVS Control the system enters the LOC EVS interface which allows you to activate the Emergency System and allows for
Emergency Paging. Once an emergency event has been activated the panel enters a Manual EVS State. In this state, all EVS Alarm pro-
grammed points that are currently in alarm in the system are changed to an active state. The display status screen reflects this when viewing
the system for status. Any outputs that were activated by the EVS Alarm programmed points are deactivated until Manual EVS state is
128
READY
NON-ACTIVE
ALL CALL
CALL
TO TALK
Figure 10.1 Front View of EVS Keypad
6820/EVS Manual — P/N LS10144-001SK-E:E 4/6/2022
ECS CONTROL
EVS message 1-8
activate buttons
LOC Functionality
EVS Control
LED
EVS Control
button
EVS status/
alarm LEDs