CONNECTING THE TERMINATION RESISTOR AND DIODE
A resistor is inserted for line’s impedance matching to prevent distortion and reduction in
Note that termination resistors of lower than 90 for the communications system.
" | A | Mon 12 / 12 / 2009 |
|
| |||||
RS485/RS232 |
|
|
|
| 10 : 30 : 20 |
|
|
| |
|
|
|
|
|
|
|
|
| |
Converter |
|
|
| 4 | 5 | 6 | F4 | F5 | F6 |
|
|
|
| 1 | 2 | 3 | F1 | F2 | F3 |
# 120Ω |
|
| B | 7 | 8 | 9 | F7 | F8 | F9 |
Termination Resistors | 120Ω | ESC 0 | ENT | F10 | F11 | F12 | |||
|
|
|
|
|
|
|
|
| |
INSTALLATION AND EXTERNAL CONNECTION
BYPASS DIODE CONNECTION
If you connected an inductor (door locks or alarm device) to the output relay, there should occur a surge voltage while the inductor was turning on and off. If you do not connect a bypass diode to the relay, the surge voltage will cause damage to the electric circuit of the controller. To reduce this surge, it is recommended to connect a bypass diode between the devices.
Mon 12 / 12 / 2009
10 : 30 : 20
1 2 3 F1 F2 F3
4 5 6 F4 F5 F6
7 8 9 F7 F8 F9
ESC 0 ENT F10 F11 F12
DC12V
Lock/Alarm
Cathode Anode
1N4004~1N4007 or equiv.
English _ 15
