SNT501-13 Yokogawa SNT501 Datasheet & Technical Manual

SNT501-13 Yokogawa Optical ESB Bus Repeater Slave Module

SNT501-13 Yokogawa Optical ESB Bus Repeater Slave Module

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Yokogawa SNT501-13 Optical ESB Bus Repeater Slave Module The Yokogawa SNT501-13, also cataloged as the SNT501 Optical ESB Bus Repeater...

SKU: SNT501-13

Manufacturer: Yokogawa
Product No.: SNT501-13
Product Type: Bus Repeater Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa SNT501-13 Optical ESB Bus Repeater Slave Module

The Yokogawa SNT501-13, also cataloged as the SNT501 Optical ESB Bus Repeater Slave Module, operates as a dedicated hardware component for high-speed optical extension within CENTUM VP distributed control system networks. Configured for signal repeating duties over extended distances, the module provides direct execution of optical-to-electrical signal conversion to link extension I/O nodes with the primary control station backplane.

Layout Configuration Selection: Layout 1

Hardware Specifications

Parameter	Specification
Model	SNT501-13
Brand	Yokogawa Electric Corporation
Origin	Japan
Weight	0.2 kg (Net assembly weight)
Dimensions	32.8 x 119.9 x 130 mm
Operating Temp	0 to +60 deg C
Power Consumption	24 VDC nominal supply line
Node Interface Density	32 channels equivalent internal data routing capability
Core Architecture	Optical ESB Bus Slave transceiver circuit
Cable Compatibility	AKB series MIL connector interface and optical fiber lines
Hardware Variant	S1 specification type
Insulation Resistance	Greater than or equal to 100 MΩ at 500 VDC
Dielectric Withstand	500 VAC for 1 minute duration
Redundancy Support	Dual-redundant bus network configuration matching
Storage Temperature	-20 to +70 deg C
Humidity Envelope	5 to 95% RH (non-condensing)

Process Control & DCS Instrumentation Technical Attributes

This communications module integrates dual-redundant optical transceivers to maintain high-speed deterministic bus traffic between remote I/O terminal racks and central processing nodes. The board utilizes an internal conversion circuit that translates optical data frames into electrical bus signals for ADV, AAI, and ASD series modules without adding protocol processing latencies. To preserve network loop integrity under severe industrial EMI conditions, the optical fiber path provides complete physical and galvanic isolation, eliminating ground potential loops across separate physical control cabinets.

Frequently Asked Questions

Q: How does the SNT501-13 respond during a sudden optical fiber link disruption?

A: When deployed in a dual-redundant configuration, the slave architecture switches all communication tracking to the secondary optical channel within one bus scan cycle, preventing drops in field data.

Q: Can this slave repeater module function properly without external 24 VDC power tracking?

A: No, the internal optical transceivers and logic conversion circuits require a stable 24 VDC nominal supply connection to maintain the active signal repeating link state.

Field Installation Guidelines

Baseplate Module Seating: Slide the hardware card into the assigned node slot of the extension rack, locking the module retaining mechanics completely to secure internal backplane connectivity.
Optical Fiber Interconnection: Clean all optical fiber connector tips before insertion into the transceiver ports, matching transmission lines with the correct optical ports.
Cabinet Grounding Trace: Terminate the external system cable shields and rack chassis elements directly to the clean earth instrument ground network to eliminate static accumulation.
Bend Radius Restrictions: Route all optical fiber interconnect cables using wire management guides that enforce standard minimum bend limits, avoiding structural attenuation of the light signal.

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