Hi-link Single Hhigh-speed Isolation Transceiver RSM485ECHT Industrial Grade RS485 Signal Isolation Module
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Visitor23
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Buycount：
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Price$1.46
Download files:
DC to DC power module:
1W: https://drive.google.com/drive/folders/1vk6luTBKSC5gfwLJC-DbyEZYVDwk87JV
2W: https://drive.google.com/drive/folders/1vjf-77LCVQl16Hcb1phADiU3Hz14mhYB
3W: https://drive.google.com/drive/folders/13pTx02uL4moskJ-PQsBYFytdq2pPt2mN
5W: https://drive.google.com/drive/folders/1okF0YdP1Xs35HxnAkTm45WOK0kH7qlb5?
6W: https://drive.google.com/drive/folders/18IOw7PyIx99lbm3u0FEhkepC82w601sw
10W: https://drive.google.com/drive/folders/1vuJp5ZoJA9Ci0M4wCS8nT689LVzgh2tC
12W: https://drive.google.com/drive/folders/1becUdxQODQ25_A_iarNnun3Vmi_wow1g
20W: https://drive.google.com/drive/folders/182aHyvoN8J0fCurg65jOkfQp17dyaXP6
30W: https://drive.google.com/drive/folders/1StP-0SJDyFpH3yQMLLQjkQXMDXc-RGeP
40W: https://drive.google.com/drive/folders/1IXRm7dueYYTNoyXCFp88wRQexmKAgCLm
B0505S-1WR2: https://drive.google.com/file/d/16BPrOWkzOz7efnf3OvF1XjClKGnO6znv/view
AC to DC power module:
40W: https://drive.google.com/drive/folders/1jI-hITgxjtByhSCpUMmrJATHO8b_gpN7
30W(C): https://drive.google.com/drive/folders/1Nz-_SdQAuVha0JM7nJTelIfophZsmUYb
20W: https://drive.google.com/drive/folders/1PlLOzt_k3Ky5THYGOWP72jqxWSkJsU6Z
15W(C): https://drive.google.com/drive/folders/1vnVfcgQH-OvujpO6asvQvjIgmwUS2Pti
10W: https://drive.google.com/drive/folders/1zaMfq4Dm3brmRWhTGp9-49c8hN5HsIuk
5W: https://drive.google.com/drive/folders/1_dzDfHi9HOnj_b0RJHCGZ9j87ma8PU7g
3W: https://drive.google.com/drive/folders/1xz8MPw9KeQXDlyAQoI3KXzjCoL4yBRVP
2W: https://drive.google.com/file/d/1_UaUPWX9K5Bfavle4C1imVY0-WjY4yso/view
Product Features
Single input power supply
Non isolated output power pin
Baud rate up to 500kbps
Up to 256 nodes can be connected
Electromagnetic radiation EMI is extremely low, and electromagnetic anti-interference EMS is high
Working temperature range: -40 ° C~+85 ° C
Integrated power isolation, signal isolation, and bus ESD protection functions
Product Description
RSM(3)485ECHT/RSM485ECHT， The main function will be to convert logical levels into differential levels of RS-485 protocol, achieving signal isolation; It is an RS-485 protocol transceiver module that uses IC integration technology to achieve power isolation, signal isolation, RS-485 communication, and bus protection. The product comes with a constant voltage isolation power supply, which can achieve 2500VDC electrical isolation. The product can be easily embedded into user devices, enabling them to easily connect to RS-485 protocol networks.
Product Application Area
Industrial communication, coal mining industry, power monitoring, communication between PLC and frequency converter, petrochemical industry, building automation ..
Product Parameters
Maximum limit parameter
Warmly note: Using beyond the following limit values may cause permanent and irreparable damage to the module.
| Project | Condition | Min | International scale value | Max | Unit |
| Input voltage range | 3.3VDC Input Series | -0.7 | 3.3 | 5 | Vdc |
| 5VDC Input Series | -0.7 | 5 | 7 | ||
| Pin soldering temperature resistance | Manual welding point distance from shell 1.5mm 3-5 seconds | - | 370 | - | ℃ |
| Wave soldering @ 5-10 seconds | - | 265 | - | ||
| hot-swapping | --- | Non-support | |||
Note: This series of modules does not have input anti reverse connection function. It is strictly prohibited to input positive and negative connections in reverse, otherwise it will cause irreversible damage to the module.
Input Features( test at room temperature)
| Project | Symbol | Condition | Min | ISV | Max | Unit | |
| Input voltage | Vac | RSM3485ECHT | 3.15 | 3.3 | 3.45 | Vdc | |
| RSM485ECHT | 4.75 | 5 | 5.25 | ||||
| TXD logic level | High level | Vih | 0.7Vcc | -- | Vcc+0.5 | ||
| low level | Vil | 0 | -- | 0.3Vcc | |||
| RXD logic level | High level | Voh | Ixp=-1.5mA | Vcc-0.4 | Vcc-0.2 | -- | |
| low level | Vol | lo=1.5mA | -- | 0.2 | 0.4 | ||
| CON control level | High level | Vcon-h | RSM3485ECHT | 2.3 | -- | Vcc+0.5 | |
| RSM3485ECHT | 3.8 | -- | Vcc+0.5 | ||||
| low level | Vcon-l | 0 | -- | 0.3Vcc | |||
| TXD driving current | Itxd | 2 | -- | -- | mA | ||
| CON driving current | Icon | 5 | -- | -- | |||
| RXD output current | Irxd | -- | -- | -- | |||
| TXD pull-up resistor | Rtxd | -- | -- | -- | KΩ | ||
| Serial interface | RSM3485ECHT | 3.3V standard UART interface | |||||
| RSM485ECHT | 5V standard UART interface | ||||||
Output Features
| Project | Symbol | Condition | Min | ISV | Max | Unit |
| Built in isolated output power supply voltage | Vo | Rated input voltage | -- | -- | -- | Vdc |
Differential output voltage (A-B) | Voo | Nominal input voltage, differential load of 54 Ω | 1.5 | -- | Vo | |
| Differential output current (A-B) | Loo | 28 | -- | -- | mA | |
| Bus interface protection | ESD electrostatic protection | |||||
