UHF SENIOR Module ST-M914 (Four Port) and ST-M918 (Eight Port)

General description

ST-M914 is a high performance UHF RFID Module. It is designed based on Senior Imported chip. Based on proprietary efficient digital signal processing algorithm, it supports fast tag read/write operation with high identification rate. It can be widely applied in many RFID application systems such as logistics, access control, and industrial production process control system.

ST-918 is a high performance UHF RFID Module. It is designed based on Senior Imported Chip. Based on proprietary efficient digital signal processing algorithm, it supports fast tag read/write operation with high identification rate. It can be widely applied in many RFID application systems such as logistics, access control, and industrial production process control system.

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Product Detail

Product Tags

UHF SENIOR Module (Four Port)

Technical Parameter

Model	ST-914
Chip solution	High performance Senior Imported Chip (compatible with Impinj R2000)
Frequency	865~868MHz (EU),902~928MHz(US)
Protocol	ISO18000-6C (EPC GEN2)
RF power	30dbm (adjuatable)
Receive Sensitivity	≤-87dBm
Inventory Speed	300pcs/s
Work mode	Answer mode,real-time inventory mode
Reading distance	0~15 meter (depends on antenna & tag)
Power supply	3.3~5V DC
Interface	RS232 (TTL 3.3V level )
Antenna port	4 SMA female connector
GPIO	2 input & 2 output
Firmware upgrade	Support
Size	76.55110.1mm
Weight	42g
Working temperature	-20~+55℃
Storage temperature	-20~+85℃

No.	Symbol	Comment
1	GND	Ground
2	GND	Ground
3	VCC	Power Supply
4	VCC	Power Supply
5	GPO1	General output (3.3V TTL level)
6	GPO1	General output (3.3V TTL level)
7	GPI1	General input (3.3V TTL level)
8	BUZZER	Buzzer driver output, high level effective. Current sourcing over 50mA
9	RXD	Serial data input
10	TXD	Serial data output
11	USB-DM	For test only
12	USB-DP	For test only
13	GPI2	General input (3.3V TTL level)
14	EN	Enable. High level effective with internal 10kOhm resistor pulled up to VCC
15	RS485_CTRL	RS-485 direction control

UHF SENIOR Module (Eight Port)

Technical Parameter

Model	ST-M918
Chip solution	High performance Senior Imported Chip (compatible with Impinj R2000)
Frequency	865~868MHz (EU),902~928MHz(US)
Protocol	ISO18000-6C (EPC GEN2)
RF power	30dbm (adjuatable)
Receive Sensitivity	≤-87dBm
Inventory Speed	300pcs/s
Work mode	Answer mode,real-time inventory mode
Reading distance	0~15 meter (depends on antenna & tag)
Power supply	3.3~5V DC
Interface	RS232 (TTL 3.3V level )
Antenna port	8 SMA female connector
GPIO	2 input & 2 output
Firmware upgrade	Support
Size	76.55110.1mm
Weight	42g
Working temperature	-20~+55℃
Storage temperature	-20~+85℃

No.	Symbol	Comment
1	GND	Ground
2	GND	Ground
3	VCC	Power Supply
4	VCC	Power Supply
5	GPO1	General output (3.3V TTL level)
6	GPO1	General output (3.3V TTL level)
7	GPI1	General input (3.3V TTL level)
8	BUZZER	Buzzer driver output, high level effective. Current sourcing over 50mA
9	RXD	Serial data input
10	TXD	Serial data output
11	USB-DM	For test only
12	USB-DP	For test only
13	GPI2	General input (3.3V TTL level)
14	EN	Enable. High level effective with internal 10kOhm resistor pulled up to VCC
15	RS485_CTRL	RS-485 direction control