Figure  5 shows  the  cursor  positioned  on  Item  1. To select  Item  4  (Alarm  Historical  Log),  move  the  cursor  to  Item  4 
with  the  cursor  control  keys,  or  type  the  number  <4>  key  and  press  the  <Enter>  key. 
_____-______--_--------------~------- 
TIME:  10:05:24  PM 
4120  F/A  SYSTEM 
USER:  1 
DATE:  MON 7  DEC  92 
PORT  1  -  SECURITY  OFFICE 
ACCESS:  1 
-__-_--_---_-------------------~----- 
SYSTEM  IS  NORMAL 
------------------------------------- 
4100  FIRE  ALARM  OPERATOR  INTERFACE 
MAINKENU 
1.  Alarms 
-  Display  any  Current  Alarms 
2.  Supervisories  - 
Display  any  Current  Supervisories 
3.  Troubles  -  Display  any  Current  Troubles 
4.  Alarm  Historical  Log 
5.  Trouble  Historical  Log 
6.  System  Functions  and  Reports 
Select  Option  or  PFl  to  Acknowledge  >  1 
Figure 5 
CRT Main Menu Screen 
ACKNOWLEDGE  SCREEN 
The  entire  system  is configured  as  either  a Global  Acknowledge  system  or  as  an  Individual  Acknowledge  system. 
If the  system  is  configured  as  a  Global  Acknowledge  system,  two  presses  of  the  <PFi>  key  will  acknowledge  all 
abnormal  conditions  ‘that  can  be  annunciated  by  the  port.  When  the  system  is  configured  as  an  Individual 
Acknowledge  system,  the  Acknowledge  key,  cPFl>,  must  be  pressed  to  acknowledge  each  condition  change. 
All  conditions  which  can  be displayed  at  the  CRT  can  be acknowledged  at  the  CRT,  provided  that  you  have  logged 
in at  a sufficient  access  level.  A tone  on  the  CRT  sounds  to  indicate  unacknowledged  conditions.  (The  tone  can  be 
silenced  with  the  cPFl>  key.)  When  an  abnormal  condition  occurs,  you  must  select  the  appropriate  acknowledge 
screen.  The  Header  information  on  the  screen  indicates  the  number  of  abnormal  conditions  which  can  be 
annunciated  by the  CRT, and  not  necessarily  the  total  number  of abnormal  conditions  in the  system.  To acknowledge 
an  abnormal  condition,  press  the  <PFi>  key  while  in  the  acknowledge  screen.  The  displayed  condition  will  stop 
flashing,  but  will  still  indicate  the  abnormal  condition.  When  all  abnormal  conditions  have  been  acknowledged,  you 
can  return  to the  Main  Menu  by  pressing  the  cF18>  key. 
As  with  the  operator  interface,  alarms  have  priority  over  supervisory  and  trouble  conditions.  Multiple  conditions  are 
displayed  in  chronological  order.  Should  multiple  unacknowledged  conditions  occur,  no  unacknowledged  event  is 
allowed  to  scroll  off  the  screen.  If more  unacknowledged  conditions  exist  in the  system  than  can  fit  on the  screen, 
the  “oldest”  unacknowledged  point  is displayed  first.  After  that  condition  is acknowledged,  it scrolls  off the  top  of the 
screen  and  is replaced  by the  next  oldest  condition. 
27