Samsung SSA-P102T/EXP manual Input #3, Input #2, Input #1, Buzzer control settings, Optional item

product introduction

10	Input #3	Input Port: The flashing LED indicator denotes that a signal is sensed by the port.
11	Input #2	Input Port: The flashing LED indicator denotes that a signal is sensed by the port.
		(connected to the Door Contact Sensor.) All other sensors are not allowed.
12	Input #1	Input Port: The flashing LED indicator denotes that a signal is sensed by the port.
		(connected to the Exit button.) All other input sources are not allowed.
13	MCU Module	MCU module connection port. Do not disassemble it at will.
	Connection Port
14	TCP/IP Module	SSA-P102T comes with the TCP/IP module.
	Connection Port
15	Reader #2	Reader port.
16	Reader #1	Reader port.
17	BUZZER	It will sound beeps on system initialization to the configured output depending on the
		buzzer control settings.
18	LCD Connection Port	Optional item.
19	Keypad Connection Port	Optional item.

20Power Connection Port SSA-P102 uses DC +12V for its power source.

21	TTL Output #1	TTL output port.
22	TTL Output #2	TTL output port.
23	Relay Output #1	Relay output port.
24	Relay Output #2	Relay output port.
25	RS-232	RS-232 communication port. Used to exclusively connect to a PC in a local area.
26	RS-422	RS-422 communication port. Used to connect to a PC in a remote area. You can
		establish up to 32 multi-drop communications.
27	Power LED	Displays the status of the power supply.
28	RX LED	Displays the signal reception status while in communications.
29	TX LED	Displays the signal transmission status while in communications.
30	MCU Module	MCU module.

8_ product introduction