Model | ST-M 71 8 |
Chip solution | Impinj E710 chip |
Frequency | 865~868MHz (EU),902~928MHz(US) |
Protocol | ISO18000-6C (EPC GEN2) |
RF power | 33dbm (adjuatable) |
Receive Sensitivity | ≤-87dBm |
Inventory Speed | 950pcs/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 | 91*69.5*8 mm |
Weight | 77 g |
Working temperature | -20~+55ºC |
Storage temperature | -20~+85ºC |
No. | Symbol | Comment |
1 | GND | Ground |
2 | GND | |
3 | VCC | Power Supply |
4 | VCC | |
5 | GPO1 | General output (3.3V TTL level) |
6 | GP O1 | |
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 | |
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 |