ID-E270-011GB
17
– steady light – control panel powered from the mains, no faults,
– pulsing light – any power supply fault.
4.3.3 Numeric keypad and edition push buttons
Fig. 4.4 Numeric keypad and edition push buttons
0 ÷ 9
– numeric keypad.
MENU
– control panel main menu display.
Esc
– current operation aborting.
↵
↵
↵
↵
Enter
– activation of a currently selected menu option and moving the cursor to the beginning of
the next line (during message edition)).
↔ Tab
– movement from one menu window to another.
← Back Space
– deleting the character to the left of the cursor and moving the text backwards one
character space. Space, unmarked key – inserting one character space in the cursor’s position.
←↑→↓
– cursors.
Note:
Alternatively to the keypad located on the control panel door, a PS/2 computer keyboard can be
used if it is connected through the socket placed on the MIK-48 module.
5 OPERATION DESCRIPTIONS
5.1 GENERAL DESCRIPTION
The POLON 4900 control panel is a multi-microprocessor based module-construction device. The
control panel block diagram is presented in Fig. 5.1.
Line elements installed in an addressable detection line, after receiving an appropriate signal from
the control panel (element’s address), send relevant signals back with information about their type
and status. Information exchange between the line elements and the control panel is executed
through the MSL modules. After an analysis of the received signals, the MSL-1M or MSL-2M module
passes proper information through the control panel bus to the PSC-49 central controller module.
The active uP1 or uP2 microprocessor on the PSC-49 module processes the information and
adequate signals for remaining circuits are produced.
