Overview
Functional Description
The SNT501-13 converts and repeats ESB bus communication signals through an optical transmission interface. This arrangement allows communication signals to travel between separated bus segments while reducing the effects of electrical interference associated with conventional copper connections.
In addition, optical transmission supports longer communication distances than standard electrical bus connections. The module provides an optical wavelength of 820 nm or 1300 nm, depending on the configured optical interface. The selected wavelength and connected optical equipment must match the actual system configuration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SNT501-13 |
| Brand | Yokogawa |
| Product Type | Optical ESB Bus Repeater Slave Module |
| Function | Optical ESB Bus Signal Repeater |
| Power Supply | 5 V DC |
| Power Consumption | 3-8 W (typical) |
| Optical Wavelength | 820 nm or 1300 nm |
| Maximum Transmission Distance | Up to 2 km |
| Data Rate | 10 Mbps |
| Explosion Protection | With explosion protection |
| Environmental Standard | ISA Standard G3 |
| Operating Temperature | -20 to 70 deg C |
| Country of Origin | Japan |
| Weight | 0.26 kg |
| Dimensions | 3.2 x 15.3 x 13 cm |
| HS Code | 8537101190 |
Optical Communication Characteristics
The optical interface supports two wavelength options: 820 nm and 1300 nm. These wavelengths define the optical transmission configuration and must correspond to the connected optical equipment. Therefore, confirm the installed optical interface before selecting replacement components.
The maximum transmission distance is 2 km at a stated data rate of 10 Mbps. Actual communication distance depends on the optical connection and the installed system configuration.
Environmental and Protection Features
The SNT501-13 is specified with explosion protection and ISA Standard G3 compliance. Its operating temperature range is -20 to 70 deg C. These characteristics are relevant when checking the module against the environmental and protection requirements of the installation.
Frequently Asked Questions
Q: What is the main function of the Yokogawa SNT501-13?
A: It serves as an optical ESB bus repeater slave module. It repeats ESB bus communication signals through an optical interface to support communication over extended distances.
Q: What optical wavelengths does the SNT501-13 support?
A: The specified optical wavelengths are 820 nm and 1300 nm. Confirm the actual interface configuration and ensure that the connected optical equipment uses the matching wavelength.
Q: What is the maximum transmission distance?
A: The specified maximum optical transmission distance is up to 2 km, with a data rate of 10 Mbps.
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