Title: Hardware Installation Guide.pdf
2. When the brown and yellow wires are not used, the LED and beeper remain active, under the readers’ internal control.2. When the brown and yellow wires are not used, the LED and beeper remain active, under the readers’ internal control.3. The LED, Beeper, and Hold are logic levels. Never apply power to them They may be pulled to a low level (0 to 1.2 VDC) to enable their function, and float at a high level (3.6 to 5.0 VDC) when not used.4. The reader has both Wiegand protocol and RS-232 serial interfaces. RS-232 applies to the card reader output only (not to the keypad).4. The reader has both Wiegand protocol and RS-232 serial interfaces. RS-232 applies to the card reader output only (not to the keypad).