Description
1. Power (DC JACK)
| No. | Symbol | Comment |
| Central | PWR | +9VDC |
| Outer | GND | Ground |
2.GPIO (DB15 Female)
| No. | Symbol | Comment |
| 1 | Output1 | General Output1 |
| 2 | Output2 | General Output2 |
| 3 | Output3 | General Output3 |
| 4 | Output4 | General Output4 |
| 5 | Output5 | General Output5 |
| 6 | Output6 | General Output6 |
| 7 | Output7 | General Output7 |
| 8 | Output8 | General Output8 |
| 9 | TGIN | Trigger input with internal pull-up to 5V through a 10k resistor |
| 10 | R+ | R+ of RS485 |
| 11 | R- | R- of RS485 |
| 12 | RGND | Signal Ground |
| 13 | NO | Normal-Open terminal of internal relay |
| 14 | NC | Normal-Close terminal of internal relay |
| 15 | CM | Common terminal of internal relay |
3. Serial communication port RS232 (DB9 Male)
| No. | Symbol | Comment |
| 1 | nc | Reserved |
| 2 | TXD | General Output2 |
| 3 | RXD | General Output3 |
| 4 | nc | Reserved |
| 5 | GND | Ground |
| 6 | nc | Reserved |
| 7 | nc | Reserved |
| 8 | nc | Reserved |
| 9 | nc | Reserved |
4. TCPIP network (RJ45)
5. TNC antenna port ANT1~ANT4
6. LED indicator LED1~LED7
| No. | Symbol | Comment |
| 1 | LED1 | Antenna 1 active indicator |
| 2 | LED2 | Antenna 2 active indicator |
| 3 | LED3 | Antenna 3 active indicator |
| 4 | LED4 | Antenna 4 active indicator |
| 5 | LED5 | Tag-detected indicator |
| 6 | LED6 | Command-executing indicator |
| 7 | LED7 | Power-on indicator |
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