Brief introduction
HYM740P UHF RFID reader modules uses R2000 chip, which complies with EPC
C1G2 protocol, its working frequency is 840~960MHz， with LBT function. It
supports dense reader working mode（ DRM）。 Max Power is 33dbm. With standard
8dBi antenna， the reading distance can reach 15 meters, maximum identifying speed
can reach 400/S; with simple power supply and interface circuit, a high-performance
RFID system can be established. It is suitable for logistics, costume, medical industry,
and complex assets management, etc.
Technical data
| No | Item | Technical data | Unit | Remark |
| 1 | Max current | 1600 | mA | Max power output |
| 2 | Standby current |
≤1 | mA | EN pin low level |
| 3 | Frequency range |
840～960 | MHz | |
| 4 | Defaul working frequency |
Frequency hopping | MHz | Frequency interval 250KHz |
| 5 | Channel bandwidth |
≤250 | KHz | |
| 6 | Frequency hopping speed |
≤2 | s | |
| 7 | Fixed power | 33 | dBm | |
| 8 | Stepping interval |
1 | dB | 5~30dBm， adjustable by software |
| 9 | Label protocol | EPC C1G2 /ISO18000-6C |
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| 10 | Communicatio n protocol |
Asynchronos serial ports protocol |
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| 11 | Starting time | ≤50 | ms | |
| 12 | Radio-frequen cy power rising time |
≤500 | μs | |
| 13 | Radio-frequen cy power droping time |
≤500 | μs |
RFID Reader Module
3
| 14 | Adjacent channel power leaking ratio |
≤-40 | dB | ±1CH |
| ≤-60 | dB | ±2CH | ||
| 15 | Frequency stablizing ratio |
±10 | ppm | -25℃～+40℃ |
| ±20 | ppm | -40℃～+60℃ | ||
| 16 | Max reading range |
15 | m | 8dBi antena |
| 17 | Muti-tags | >400/s |
Characteristics of DC
| Data | Mini value |
Typical value |
Max value | Unit | Remark |
| Voltage of power | 3.3 | 4 | 5.5 | V | Direct current |
| Input high level | 2 | 3.3 | 3.5 | V | GPIO |
| 2 | 3.3 | 3.5 | V | EN | |
| Input low level | -0.5 | 0 | 0.5 | V | GPIO |
| - | - | 0.18 | V | EN | |
| Output high level |
2.3 | - | 3.3 | V | GPIO |
| Output low level | 0 | - | 1 | V | GPIO |
| Enable current | 2 | 5 | 25 | uA | VEN≥2V |
Requirement on antenna
| No | Item | Technical data | Unit | Remark |
| 1 | VSWR | 1.5 |
Appearance and structure
Size： 55.9×35.6×7.5mm
Weight： 20g
CDMA EvDO Rev. A » GSM/GPRS
