Product Name: Process I/O 8-module
Brand Name: GE
Model Number:8709-CA-08
Country of Origin:USA
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
General Electric |
Model Number: |
8709-CA-08 |
Country of Origin: |
USA |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
The 8709-CA-08 is an 8‑module I/O Carrier engineered for Emerson's PAC8000 Remote I/O system, serving as the physical and electrical backbone for modular control architectures. This 8709-CA-08 carrier supports extended 64‑slot addressing, enabling complex I/O configurations within a single node. It accepts up to eight PAC8000 I/O modules and field terminals, distributing DC power and carrying control signals and data on the Railbus. The 8709-CA-08 features an isolated earthing bar for cable shielding, optional Bussed Field Power distribution, and is certified for Class 1 Div 2 and Zone 2 hazardous locations.
Scalable System Architecture – Extended 64‑slot addressing eliminates the need for additional controller hardware when expanding I/O capacity
Reduced Installation Costs – Field terminals snap directly onto the carrier, eliminating separate wiring blocks and reducing point‑to‑point connections
Enhanced Signal Integrity – Isolated earthing bar mitigates electromagnetic interference (EMI) and prevents ground loops in noisy industrial environments
Hazardous Area Ready – Class 1 Div 2 / Zone 2 certification enables direct deployment without expensive explosion‑proof enclosures
Simplified Cabinet Layout – Centralized Bussed Field Power distribution optimizes panel space and reduces wiring complexity
64‑Slot Extended Addressing – Supports module addresses 1 through 64 for flexible system scaling
8‑Module Capacity – Accepts up to eight PAC8000 I/O modules and field terminals
Railbus Architecture – Carries address, data, control signals, and DC power on the internal bus
Isolated Earthing Bar – Dedicated terminal rail for cable screens/shields to manage EMI and ground loops
Bussed Field Power (BFP) – Two 8‑pin connectors distribute optional field power to I/O modules
Tool‑Free Field Terminal Mounting – Field terminals snap directly onto the carrier without additional wiring blocks
Multiple Mounting Options – Supports flat panel mounting, Top‑hat DIN rail, and G‑section DIN rail
Daisy‑Chain Connectivity – Multi‑pin connectors on left and right edges enable carriers to be joined end‑to‑end
The 8709-CA-08 is certified for operation in Class 1, Division 2, Groups A, B, C, D hazardous locations and Zone 2, IIC T6 hazardous locations. It complies with Factory Mutual (FM) Class No. 3611, CSA Std C22.2 No. 213, and ATEX Category 3 (Zone 2) to EN50021:1999 protection type 'n'. The carrier operates across a temperature range of -40°C to +70°C with storage capability from -40°C to +85°C, and withstands 5% to 95% RH non‑condensing humidity. Constructed from rugged modified poly‑phenylene oxide with an epoxy resin woven glass laminate PCB, the 8709-CA-08 is built for harsh industrial environments.
Q1: What is the difference between the 8709-CA-08 and standard 32‑slot carriers?
The 8709-CA-08 supports extended 64‑slot addressing, while standard carriers are limited to 32 slots. The 8709-CA-08 is required for systems using controllers or EBIMs that communicate with up to 64 I/O modules. These two carrier types cannot be mixed within the same system.
Q2: How many I/O modules can the 8709-CA-08 support?
The 8709-CA-08 supports up to eight I/O modules. Each module requires a corresponding field terminal that snaps directly onto the carrier.
Q3: What is the purpose of the earthing bar on the 8709-CA-08?
The isolated earthing bar is designed for terminating cable screens and shields. It mitigates electromagnetic interference (EMI) and prevents ground loops, ensuring signal integrity for sensitive process control and safety signals.
Q4: What is Bussed Field Power (BFP) and how does it work on the 8709-CA-08?
Bussed Field Power distributes power to I/O modules that require it for their field circuits. The 8709-CA-08 provides two 8‑pin connectors at the top rear to connect field power supplies. This centralized distribution simplifies wiring and reduces point‑to‑point connections.
Q5: Can the 8709-CA-08 be used in hazardous areas?
Yes. The 8709-CA-08 is certified for Class 1, Division 2, Groups A‑D hazardous locations and Zone 2, IIC T6 hazardous locations. It complies with FM, CSA, and ATEX Category 3 standards.
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