X-990 Connection Diagram
X-990 Master Device X-990 Slave Device
X990 Weigand IN Weigand OUT
SEN 12V RXD
PC PC
GND GND GND
HUB BUT WDO WDO
NO1 WD1 WD1
COM1 RLED TXD
EM Lock
NC1 GLED GND
TCP/IP
Positive +
NO2 BEEP 485+
Negative -
COM2 485-
NC2 BELL-
Sensor
POWER BELL+
12V
F-12 GND
eSSL
Lock Push Button
KR 500 Door Bell
X-990
USB Key Serial Printer
X-990 with F-12 and EM Lock connection X-990 with KR 500 and EM Lock Connection
X990 Weigand OUT X990 Weigand IN KR-500
Push Button SEN RXD Push Button SEN 12V 12V
+ GND GND + GND GND GND
_ BUT WDO _ BUT WD0 WD0
NO1 WD1 NO1 WD1 WD1
COM1 TXD F-12 COM1 RLED
EM Lock EM Lock
NC1 GND GND NC1 GLED
Positive + Positive +
NO2 485+ 485+ NO2 BEEP
Negative - Negative -
COM2 485- 485- COM2
NC2 BELL- 12V NC2
POWER BELL+ GND POWER
12V 12V
GND GND