CLR  (Clear) 
The  <CLR>  key  press  is used  to  exit  from  a  Main  Menu  Function  option  or to  abort  an  incomplete  keypad  entry.  In 
most  cases,  the  current  display  will  clear  and  will  back  up  one  level.  Multiple  <CLR>  key  presses  will  continue  to 
back  up  until  the  top  level  is  reached.  The  top  level  will  display  the  “SYSTEM  IS  NORMAL”  followed  by  time  and 
date,”  or the  total  number  of  abnormal  conditions. 
NET/-  (Network/Hyphen) 
The  NET  function  of  the  <NET/->  key  is  used  to  address  other  network  nodes  when  the  4100  is used  as  a  network 
node;  the  hyphen  (-)  function  of  the  key  is  used  to  set  limits/boundaries  for  card  address,  point  numbers,  and 
subpoint  numbers  during  keypad  entries. 
DEL  (Delete) 
The  <DEL>  key  acts  as  a delete  key  during  keypad  inputs.  It inserts  a blank  space  in the  current  location  and  backs 
up one  position. 
VIEWING  POWER  SUPPLY/CHARGER  VOLTAGE  AND  CURRENT  READINGS 
To view  power  supply  voltage  and  current  readings,  perform  the  following  procedure. 
1 .Press  the  <MENU>  key  on  the  DISPLAY/ACTION  keypad.  Then  press  the  <NEXT>  key  six  times. 
l 
The  alphanumeric  display  reads: 
Press  <NEXT>  or  <PREVIOUS>  to  scroll 
Display  Card  Status? 
2.  Press  the  <ENTER>  key  on  the  ENTRY  keypad.  Then  press  the  <NEXT>  key  once  (or  until  the  display 
reads:) 
I 
CARD  n,  POWER SUPPLY/CHARGER 
CARD  STATUS 
NORMAL 
I 
NOTE:  “n”  = Card  number 
3.  Press  the  <ENTER>  key.  Then,  using  the  <NEXT>  or  <PREVIOUS>  key  to  scroll,  check  voltage/current 
readings  on  the  Power  Supply/Charger  card. 
48 
Technical Manuals Online! - http://www.tech-man.com