SNT501-E3 | Yokogawa Optical ESB Bus Repeater Slave Module

The SNT501-E3 is an Optical ESB Bus Repeater Slave Module from Yokogawa, designed to extend the ESB Bus network using fiber-optic connections. It connects from an Optical ESB Bus Repeater Master Module or N-ESB Bus Module to the ESB Bus Interface Module (SSB401) on the safety node unit (SNB10D).

Key Specifications

• Function: Optical transport for the ESB Bus
• Connection Types: Supports both star and chain-type configurations
• Connection Stages: Allows up to two connecting stages
• Transmission Distance:
  • Standard: Up to 5 km (for two stages)
  • With Vnet/IP System (R1.03 or later): Total distance up to 10 km for two stages
• Current Consumption: 0.5 A
• Weight: Approximately 0.3 kg

Model and Suffix Codes

• Model: SNT501 Optical ESB Bus Repeater Slave Module
• Suffix Codes:
  • -E: With explosion protection
  • 3: Complies with ISA Standard G3, and supports temperatures from -20 to 70 °C (for maintenance purposes only)