Optocoupler Input
Pin 1
IN2 - most time connected to GND
IN2 + Drives LED inside the optocopuler thru 1K Resistor
Min 3V / Max 12V
Current Limit Resistor
Optocoupler
IN2 +
1.IN22.IN2+
3.WD0
4.WD1
5.NO
6.NC
7.COM
8.GND
To the microcontroller
Circuit
1Kohm
GND
IN2 -
1
Wiegand Interface or General Purpose 5V I/O
Cab
le
Wiegand Interface if not used, can be converted to
5V tolerant Input or Output. If It is going to be used as 5V General
Purpose Output, then Pull-Up Resistors on the board should be
removed for proper output operation
hon
e
le
ab
eC
on
Ph
4W
ire
Built-In Relay Output
Do not use to switch 110V/220V
devices
S125
If used with SA-100 Accessory,
two additional 120W Relays can
be controlled by WD0/1
NO
NC
(Normally Open)
(Normally Closed)
Power Supply
Works with 9V or 12V DC.
For greater voltages or AC Input, SA-100 Accessory can be
used to have regulated 9V DC.
1
ire
P
Configured as CMOS Strong Drive.
(Remove Pull-Ups)
Max Output 5V, Max Output Current 20mA
60W (60VA)
COM
Use only for door locks or similiar (Relay Common)
mechanisms that works below 60V.
8
8W
WD0/1 As Wiegand Configured as Open Drain and connected to
5V thru pull-up resistors. Max Output 5V
WD0/1 As Input
Configured as CMOS High Impedance and
connected to pull-up resistors. Max Input 5V
WD0/1 As Output
OptoCoupler IN Neg
OptoCoupler IN Poz
Wiegand Data 0 / IO0
Wiegand Data 1 / IO1
Relay-Normal Open
Relay- Normal Closed
Relay-Common
Ground
S125
Reader
Rs232 / Rs485 Interface
Rs232 and Rs485 shares the same wires and are not supported
at the same time. Both interfaces comes with seperate models.
Rs232 and Rs485 voltage levels are different and not compatible.
Thus do not connect any Rs232 device to Rs485 interface and vice versa.
4
1.GND
2.9V/12VDC IN
3.RS232TX / Rs485 LineA
4.RS232RX / Rs485 LineB
SA-100
Easy Connect & Expansion Box Accessory
(Optional to use)
SA-100
Relay(2)
SA-100
Relay(3)
Do not use AC and DC
Input at the same time.
Use only one of them.
1.GND
2.9V/12VDCIN
3.RS232TX/LineA
4 4.RS232RX/LineB
OptoCoupler
Input
Wiegand/IO
IN2- IN2+
WD0 WD1 GND
2
1
2
Internal
Regulator
Controlled by Controlled by
WD0
WD1
1
1
9V DC OUT
To the Reader
Relay(3)
3.WD0
4.WD1
5.NO
8 6.NC
7.COM
8.GND
120W(VA)
From Reader
1.IN2-
1 2.IN2+
Relay(2)
120W(VA)
SA-100 Relay
Jumpers
3
9V/12V
DC Input
RS232/485
Reader
Relay (1)
RS232
WD1
PW+ PW12V/24V AC/DC
Input
NO NC COM TX/A RX/B GND 9VDC GND
1
2
3
1
2
3
1
9V/12V
DC Adapter
Input
RS232
Female
COM NC NO
SA-100
Relay(2)
DC Adapter Input
COM NC NO
Relay3 Enable
To Computer/Control Panel
Relay2 Enable
9V/12V DC
Terminal Blocks
Relay 2 & 3 can be used only if
WD0/1 configured as Output Pin and
related jumper is used
WD0
AC
Input
SA-100
Relay(3)
2
Terminal Blocks
OPTO WIEGAND
INPUT
RELAY
SERIAL
TX/A RX/B GND
to the Rs232/Rs485
controller
GND B A
SC485-USB
USB-To-RS485
Converter
Mini USB
Connector
to the Computer
Rs232 controller
(i.e. PC) can be connected
to this socket, or terminal
blocks can be used
Do not use Rs232
if S125 comes with
Rs485 Interface
Rs232 and Rs485 shares the
same wires.
If S125 reader comes with
Rs485 interface then please
do not connect any Rs232 device
If S125 reader comes with
Rs232 ınterface then please
do not connect any Rs485 device.
In this case do not use
USB-To-RS485 converter.
Use the terminal blocks to connect
Rs232 device, or use the Rs232
female socket.