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    Apter Power supports quotations, documentation, procurement and extended-address carrier planning for this legacy PAC8000 item.

8709-CA-08

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Emerson PAC8000 8709-CA-08 eight-module extended-address carrier with earth bar for 64-slot nodes using the 8521 controller family.
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Technical specifications for 8709-CA-08

  • Manufacturer:
    Emerson
  • Part Number:
    8709-CA-08
  • Product Family:
    PAC Systems
  • Product Type:
    8-Module Extended-Address Carrier
  • Stock:
    1
  • Manufacturer:
    Emerson
  • Product family:
    PAC8000
  • Exact model:
    8709-CA-08
  • Product type:
    Extended-address I/O carrier
  • Module positions:
    8
  • Address architecture:
    64-slot extended addressing
  • Supported controller family:
    8521
  • Integrated feature:
    Earth bar
  • Mixed 32-slot carriers:
    Not supported
  • Weight:
    0.68 kg
  • Estimated shipping dimensions:
    34.2 × 17 × 2.2 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Addressing Controller Match Mounting & Earth Applications

Features:

  • Eight module positions: Supports a complete PAC8000 I/O group on one carrier.
  • Extended addressing: Operates within the 64-slot node architecture used by 8521 controllers.
  • Integrated earth bar: Provides a defined earthing point alongside the carrier assembly.
Carrier role: The assembly distributes Railbus communication and system power to its installed I/O modules.

Architecture identity: CA-08 identifies the eight-position extended-address carrier rather than a 32-slot base.

Expansion context: Controller type, carrier sequence and free addresses determine whether another carrier can be added.

Apter Power supports sourcing of the Emerson 8709-CA-08 8-Module Extended-Address Carrier with quotations, technical documentation and configuration review.
Emerson 8709-CA-08 8-Module Extended-Address Carrier Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Extended-address scope: The carrier belongs to the PAC8000 extended-address architecture, which determines controller and carrier compatibility.
  • Slot allocation: Installed modules occupy addresses defined by the carrier position in the node.
  • Carrier sequence: Physical order should correspond with the commissioned address map.
  • Expansion boundary: Another carrier requires both available address capacity and a valid communication and power path.
  • Supported family: The carrier is intended for PAC8000 nodes using an 8521 controller or EBIM arrangement.
  • Platform boundary: The 64-slot carrier architecture is not mixed with 32-slot carriers in one node.
  • Commissioning basis: Controller configuration establishes the valid carrier and module addresses.
  • Service clarity: Recording controller and carrier part numbers prevents cross-platform substitutions.
  • Panel base: The carrier provides the mounting foundation for eight plug-in I/O modules and terminals.
  • Earth bar: An integrated bar supports the cabinet earthing arrangement defined for the system.
  • Railbus path: Backplane connections carry communication and system power along the module group.
  • Cabinet planning: Carrier footprint, cable access and earth routing should be considered together before mounting.
  • 64-slot PAC8000 nodes: Builds eight-module groups under an 8521 extended-address controller.
  • Cabinet expansion: Adds I/O positions when the existing node retains address and physical capacity.
  • Carrier replacement: Restores the backplane and earth interface for an installed CA-08 group.
  • Structured retrofits: Supports reconfigured panels that keep one consistent extended-address carrier architecture.
Description
Eight PAC8000 I/O positions, Railbus distribution and an integrated earth bar are brought together on 8709-CA-08. The carrier provides the mechanical and electrical base for an extended-address module group inside a 64-slot node.

Unlike the earlier 32-slot carrier arrangement, 8709-CA-08 is designed for the extended-address architecture used with the 8521 controller family. Keeping this carrier type consistent across the node preserves the intended address and backplane structure.

Expansion planning should include controller type, existing carriers, free addresses, cabinet mounting and earthing. Apter Power can review these details with 8709-CA-08 to support an accurate quotation and avoid mixing incompatible carrier architectures.
Alternative Names
8709 CA 08 8709-CA-08 8709CA08 8709 CA-08 Emerson 8709-CA-08 PAC8000 8709-CA-08 8709 CA/08 8709-CA 08
Technical notes
Architecture note: 8709-CA-08 belongs to the PAC8000 64-slot extended-address platform and is used with the 8521 controller family. The official documentation does not permit mixing these carriers with 32-slot versions in one node. Apter Power can review the installed controller and carrier sequence before an expansion or replacement is quoted.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can 8709-CA-08 be added to an existing PAC8000 node built with 32-slot carriers?
The official architecture keeps 64-slot extended-address carriers separate from 32-slot carrier types. A compatible 8521-based node plan is required.
How many I/O modules can one 8709-CA-08 hold?
The carrier provides eight module positions, while the controller and node address plan determine how many carriers can be used together.
Why are modules on a new 8709-CA-08 not recognized by the controller?
Check that the controller belongs to the supported 8521 family, the carrier sequence uses the extended-address architecture and the assigned slots are available.
What role does the earth bar on 8709-CA-08 play in cabinet installation?
It provides an organized connection point for the earthing arrangement defined by the PAC8000 installation and cabinet design.
Which existing parts should be checked before ordering 8709-CA-08 as a spare?
Record the controller model, neighboring carrier references, current address range and mounting arrangement to confirm the same extended-address platform.
What should an expansion RFQ for 8709-CA-08 include?
Include the 8521 controller reference, existing carrier count, occupied addresses, planned I/O modules, cabinet space and earthing details.