tM-SG4 RS-485 Pull-High/Pull-Low and Termination Resistor Module
DIN-rail signal conditioning module for RS-485 networks, with switch-selectable pull-high/pull-low resistors and a 15-step termination resistor covering 65 ~ 560 Ω.
- Switch-selectable pull-high/pull-low resistors at 1 kΩ, 10 kΩ and 100 kΩ
- 15-step switch-selectable termination resistor, 65 ~ 560 Ω
- Red power LED and green termination LED indicators
- DIN-rail mountable
- Reverse polarity protection
- Operating temperature -25 °C ~ +75 °C, storage -40 ~ +85 °C
332,43 kr per stk.
| 1–9 stk. | 332,43 kr | |
|---|---|---|
| 10–30 stk. | 322,04 kr | −3 % |
| 31+ stk. | 322,04 kr | −3 % |
Produktinformasjon "tM-SG4 RS-485 Pull-High/Pull-Low and Termination Resistor Module"
The tM-SG4 CR is an optional module for improving signal quality on RS-485 networks. It lets you set pull-high and pull-low bias resistors with switches, and select line termination from 15 steps without having to calculate a value by hand.
Termination is only needed on longer runs. Where the network is under 100 metres, the module can usually be left out. On longer networks, termination resistors may be required at both ends of the bus. The most reliable way to choose the value is to examine the RS-485 signal on an oscilloscope: a clean square wave indicates a good impedance match, while distorted edges point to the need for termination at both ends.
A red LED shows power and a green LED shows when termination is active. The module is DIN-rail mountable, has reverse polarity protection and is rated for operation from -25 °C to +75 °C.
Applications
- Biasing RS-485 networks with pull-high and pull-low resistors
- Terminating RS-485 buses, particularly runs over 100 metres
- Improving communication reliability on RS-485 networks
| Product type: | Signal conditioning module |
|---|---|
| Interface: | RS-485 |
| Operating temperature: | -25 ~ +75 °C |
| Mounting: | DIN-rail |
Spesifikasjoner
| LED Indicators | |
|---|---|
| Status | 1 Red LED as Power Indicator 1 Green LED as Termination Indicator |
| Misc. | |
| Pull-high/Pull-low Resistors | 1 kΩ, 10 kΩ, 100 kΩ, Switch-selectable |
| Termination Resistance | 15 Steps, 65 ~ 560 Ω |
| Power | |
| Reverse Polarity Protection | Yes |
| Consumption | 0.5 W Max. |
| Environment | |
| Operating Temperature | -25 °C ~ +75 °C |
| Storage Temperature | -40 ~ +85 °C |
| Humidity | 10 ~ 90% RH, Non-condensing |
Spesifikasjoner som oppgitt av produsenten. Med forbehold om endringer.
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