Ronan X16PDM - Manual (Page 16)

Rev 1.0 Series X11CA Hardware Manual
2. X11CA Hardware Setup
Hardware Control-© 2002 Ronan Engineering 12
2.2.2 Field Contact Inputs
Field contacts can be set as normally open or normally closed by setting
jumper switches (J11, J6, J7, and J8) either as NO or NC on each alarm
module.
•
Dry contact – The system internal interrogation powered 24 Vdc.
•
Live contact – 0pto-isolated inputs. The opto-couplers, U1, U5, U7 and
U11, provide 2,500-volt isolation.
•
24 Vdc, 48 Vdc, 125 Vdc or 115 Vac, 240 Vac
2.2.3 Micro controller (U2)
U2 is a Single-Chip 8-Bit Micro controller manufactured in advanced CMOS process
and is a derivative of the 80C51 flash micro controller family.
The device contains a non-volatile 32KB Flash program memory that is serial In
Application programmable. That means the micro controller fetches a new program
code and reprograms itself while the application is running in the system.
After the serial connection is made between the host computer and the X11-1047
Alarm module via the X11CA-IM (Refer to the
Figure 2-17 X11CA-2000 Rear
Terminal Wiring Diagram ), the X11CA configuration software on the host computer
uses IAP for the remote programming to erase and reprogram the content of the Flash
Memory. (For reprogramming the Micro controller see X11CA Software Manual).
It is synchronized by the clock generator (Y1) that generates 18,432 MHz oscillations.
2.2.4 Outputs
•
Auxiliary Output Signals:
These signals provide open collector outputs to the energized relays on the
auxiliary modules, and it is programmable for various system functions.
•
Transistor Output: Transistor output provides an open collector output
(pulling to V), and it is programmable for various system functions. A
typical application is to drive an auxiliary relay following the field contact
or lamp logic.
•
Lamp Drivers (U3, U12, U13, U14): Lamp drivers are designed to operate
at 70V (1A) with over voltage, over temperature and short circuit
protection.