• PN: SPA-ZC22
• Brand: ABB
• Type: SPA Bus Optical-Electrical Bus Connection Module

• Function: Realizes bidirectional conversion between SPA fiber optical signals and electrical signals of RS232/RS485/SPA(+5V) bus, connects SPACOM series protection relays to fiber-optic SPA communication loop. Built-in independent power supply ensures the optical loop keeps normal communication even when the connected relay is offline for maintenance, realizes stable uploading of electrical parameters, fault alarms and status data of substation secondary equipment to upper monitoring master station

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Core Features

1. Supports three working modes: master, slave, optical repeater, can expand fiber communication loop distance
2. Equipped with 9-pin D-SUB (RS485/SPA) + optional 25-pin D-SUB (RS232), with 2/5 pairs of fiber optical interfaces
3. Compatible with glass fiber, plastic fiber or mixed fiber links, strong anti-electromagnetic interference capability
4. Independent isolated power supply unit, maintenance of single protection device will not interrupt the whole optical bus communication
5. Front panel LED status indicators for power, sending/receiving data and communication fault quick diagnosis

6. DIN rail cabinet installation design, compact structure, convenient for secondary distribution cabinet layout

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Technical Specs

• Communication Interfaces: RS232, RS485, SPA fiber optical interface
• Auxiliary Power Supply: 24/48/60VDC; 110/220VAC/DC optional
• Operating Temperature: -25℃ ~ +70℃
• Storage Temperature: -40℃ ~ +85℃, 5%~95% RH non-condensing
• Protection Grade: IP20
• HS Code: 8538900000

• Certification: CE certified

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Compatibility

• Applicable Devices: All ABB SPACOM series protection relays
• Matching Master Station: SACO148D4, SRIO1000M substation communication master unit
• Applicable System: Substation automation system, ABB Advant OCS, INFI90 DCS

• Not Compatible: Non-SPA bus third-party protection devices and communication systems

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Application

• Fiber-optic networking for medium-voltage substation protection relays and secondary automation equipment
• Signal conversion and long-distance anti-interference data transmission in power plant, metallurgical and chemical power distribution systems
• Old substation SPA fiber communication system renovation and faulty bus module spare replacement

• Real-time uploading of relay fault records, electrical measurement data and remote signal monitoring

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Our Advantage

• Optical signal transmission stability test, serial communication compatibility and insulation test completed before delivery
• 12-month warranty for new original and fully tested surplus modules