PD***-755产品特点；
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规格：
| CPU | 80186-80 MHz or compatible | ||
| SRAM | 512 KB | ||
| Flash Memory | Flash ROM: 512 KB ; Erase unit is one sector (64 KB) ; 100,000 erase/write cycles | ||
| EEPROM | 16 KB; Data retention: 40 years; 1,000,000 erase/write cycles. | ||
| Built-in Watchdog Timer | Yes | ||
| Communication Interface | |||
| Non-isolated | COM1 | RS-232 (TxD, RxD, RTS, CTS, GND) | |
| COM2 | RS-485 (D2+, D2-, GND) | ||
| COM3 | RS-485 (DATA+, DATA-, GND) | ||
| COM4 | RS-485 (DATA+, DATA-, GND) | ||
| COM5 | RS-485 (DATA+, DATA-, GND) | ||
| Ethernet | 10/100 Base-TX, RJ-45 port (Auto-negotiating, auto MDI/MDI-X, LED indicator) | ||
| PoE | - | ||
| Data Bit | 7, 8: for COM1 and COM2 5, 6, 7, 8: for COM3 ~ COM5 | ||
| Parity | None, Even, Odd, Mark, Space | ||
| Stop Bit | 1, 2: for COM1 ~ COM5 | ||
| Baud Rate | 115200 bps Max. | ||
| LED Indicators | |||
| 5-digit 7 Segment | Yes, only for "D" versi*** | ||
| System | Red | ||
| PoE | - | ||
| Protection | Power Reverse Polarity Protection | ||
| Required Supply Voltage | +10 VDC ~ +30 VDC (non-regulated) | ||
| Power C***umption | PDS(M)-755: 2.0 W | |
| Flammability | Fire Retardant Materials (UL94-V0 Level) | ||
| Dimension (W x H x D) | 72 mm x 123 mm x 35 mm (88 mm x 123 mm x 28 mm for "M" versi***) | ||
| Installation | DIN-Rail or Wall mounting | ||
| Casing | Fire Retardant Plastic (Metal for "M" versi***) | ||
| Environment | |||
| Operating Temperature | -25 ~ +75 °C | ||
| Storage Temperature | -40 ~ +80 °C | ||
| Humidity | 5 ~ 90% RH, non-condensing | ||
PD***-755D产品介绍：带7段数码显示的 PDS-755(金属外壳）