Communication Input
- Isolated Safety Barriers
- Signal Isolators
- Surge Protective Devices
- Safety Relays
- Isolated Intelligent I/O Modules
- Intelligent Gateways
- Industrial Data Optical Transceivers
- Online Dew Point Analyzers
- Data Acquisition Modules
- HART data converter
- Terminal Board
PHD-11TC-33+
Overview
The communication signal of PHD-11TC-33+ with surge protection function is input into the isolated safety barrier, which can realize the two-way communication of RS-485 Half Duplex digital signal in the dangerous area and the safe area.
This product needs independent power supply, and the power supply, input and output are isolated.
| Input | |
| Input signal | RS-485 Half Duplex Digital Signal |
| Output: | |
| Output signal | RS-485 Half Duplex Digital Signal |
| Transmission delay | ≤10μs |
| Transmission rate | ≤115.2kbps |
| Surge protection features: | |
| Nominal discharge current ln(8/20μs) | 5kA |
| Voltage protection level Up(8/20μs): | 60V(line to line) |
| Voltage protection level Up(8/20μs): | 600V(line to ground) |
| According to standards | GB/T18802.21-2016(equivalent to 1EC61643-21:2012) |
| Supply voltage | 20-35VDC |
| Power consumption | ≤40mA (24V power supply) |
| LED indicator | Green: power indicator Yellow: The control room transmits signals to the on site Red: transmitting signals from the site to the control room |
| Receiving and transmitting switching time | ≥20ms |
| Temperature parameters | Working temperature: -20℃~+60℃ storage temperature:-40℃~+80℃ |
| Relative humidity | 10%~95% RH no condensation |
| Insulation strength | Between intrinsically safe side and non-intrinsically safe side (≥3000VAC/min); between power supply and non-intrinsically safe side (≥1500VAC/min) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| Electromagnetic compatibility | GB/T 18268 (IEC 61326-1) |
| MTBF | 80000h |
| Wire requirements | Cross section ≥ 0.5mm²; Insulation strength ≥ 500V |
| Applicable field equipments | Communication interface device with RS-485 Half Duplex |
Note: The power rail function is an optional function, and users need to specify
the power supply method when placing an order
The selection of power rail connectors can refer to page 89 of the "Annex"
PHD-11TC-33A-23
PHD-11TC-33+