IDTECK SRK101 Hardware Manual page 15

the Yellow LED, indicating that it's waiting for another card to be read.
3. Press the keypad and you'll hear a beep. Then, the reader will pass the keypad input
data on to the controller.
4. In the 34bit Wiegand + RS232 output format (SRK101 or SRK101U), an ID (PIN) is in the
range of 0 to 4294967295, without a facility code. In the 26bit Wiegand + RS232 output
format (SRK101B), a facility code is within the range of 0 to 255 and an ID (PIN) in the
range of 0 to 65535. If you don't finish your PIN entry with "ENT" key or if you don't press
any key within 5 seconds, the reader will make error beeps "Beep Beep Beep Beep" then
clear the PIN data (no output) and return to the standby mode. An ID (PIN) you can enter
via the keypad is from 1 to 10 digits (SRK101 or SRK101U) or 1 to 8 digits (SRK101B).
e.g. Keys Pressed
① 1234ENT
② 12345678ENT Wiegand
5. LED Control:
To change the LED colors, you may connect the LED Control Input (Yellow wire) to the
Ground. Then, the Green LED will be lit while the reader is in the standby mode. If a
Smart[Mifare] card is presented to the reader, the Yellow LED will be lit, and then the
Green LED will come back on again for the next reading.
6. Buzzer Control:
By default, the reader generates one beep when a Smart[Mifare] card is presented.
However, by connecting the Buzzer Control Input (Blue wire) to the Ground, you can set
the reader to generate more beeps for better indication of its access (granted or denied)
status. You'll hear one beep as the Blue wire gets connected to the Ground.
7. Tamper Switch
The SRK101/SRK101U/SRK101B has a normally-closed (NC) type Tamper Switch.
When the reader is mounted to the Wall Mount, the NC-type Tamper Switch Output
(Orange wire) and the COM-type Tamper Switch Output (Gray wire) will be
short-circuited. On the other hand, if the SRK101/SRK101U/SRK101B is not attached to
the Wall Mount, the NC-type Tamper Switch Output (Orange wire) and the COM-type
Tamper Switch Output (Gray wire) will be open-circuit.
10-3-2. Advanced Operations (Optional)
1. Supervisory Signal: The reader sends a supervisory signal (ID:"0000000000/000
00000") every 40 seconds through the Wiegand Data wire.
2. Three-LED Control: to change the LED colors, you may connect the LED Control
Inputs (Yellow wire for Green LED, White wire with Red stripe for Red LED, White wire
with Blue stripe for Yellow LED) to the Ground. While they are connected to the Ground,
the LEDs will stay lit.
Output Mode SRK101 or SRK101U
Wiegand
RS232
RS232
15
SRK101B
0000001234 00001234
0000001234 00001234
0012345678 12345678
0012345678 12345678