1734-EXT3 Allen-Bradley POINT I/O Extension Cable, 3 m
The 1734-EXT3 is a POINTBus extension cable from Allen-Bradley. It is 3 meters long. It links POINT I/O modules in a single node. Both ends use open-style connectors. The cable suits in-cabinet routing. It keeps the POINTBus signal clean between module groups. This part fits POINT I/O systems that need a longer bus span. The design supports RIUP (remove and insert under power). Technicians can swap modules while the node stays live. The bus supports up to 63 I/O modules and 504 channels per node. It carries analog, digital, RTD, thermocouple, AC/DC and specialty I/O. Adapters cover DeviceNet, EtherNet/IP, ControlNet and PROFIBUS. This cable is a simple, low-cost way to extend a POINTBus segment. It is a passive part, so it adds no active electronics to the node. Route it away from high-noise cabling. Keep the bend radius within cable limits.
Technical Specifications
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model / Part Number | 1734-EXT3 |
| Series | POINT I/O |
| Part Type | POINTBus Extension Cable |
| Length | 3 meters |
| Connector Type | Open-style, both ends |
| Signal Type | Passive POINTBus extension |
| Mounting | In-cabinet |
| Measurement Range | Not applicable (passive cable) |
| Frequency Response | Not applicable (passive cable) |
| Sensitivity | Not applicable (passive cable) |
| Linearity | Not applicable (passive cable) |
| Resolution | Not applicable (passive cable) |
| Temperature Range | Confirm with Rockwell POINT I/O cabinet limits |
| Environmental Tolerance | For indoor, protected cabinet use |
| Noise Immunity | Shielded routing and separation from power cables |
| Max I/O per Node | 63 modules / 504 channels |
| Warranty | 12 months |
Installation Guide
- Power down the node before you start.
- Check the cable length against your cabinet layout.
- Plug one open-style end into the source base.
- Plug the other end into the next module group.
- Keep the cable away from drive and motor leads.
- Respect the minimum bend radius.
- Secure the cable with clamps.
- Check continuity and shield bonding.
- Power up and confirm the node scans.
- Log the cable route for future service.
Commissioning and Maintenance
Commissioning is fast. The cable has no settings. You only check seating and shield contact. Maintenance is simple. Inspect connectors at each service interval. Look for loose pins or bent contacts. Replace the cable if the bus shows errors. Keep a spare 1734-EXT3 on the shelf. That cuts downtime on obsolete lines.
Compatibility
- POINT I/O terminal bases and adapters
- DeviceNet, EtherNet/IP, ControlNet, PROFIBUS adapters
- Analog, digital, RTD, thermocouple, AC/DC and specialty modules
- Logix controllers for ControlNet and EtherNet/IP links
- RS-232, RS-485, SSI, encoder and counter modules
- 4-channel IO-Link master and address reserve modules
Typical Applications
- Extending a POINTBus segment in a crowded cabinet
- Adding a remote module group inside one enclosure
- Retrofit of legacy POINT I/O nodes
- Discrete and process lines with mixed I/O
- Packaging, material handling and assembly cells
- Water, wastewater and utility panels
Diagnostic Capability
The cable is passive. Diagnostics come from the adapter and modules. Watch bus status LEDs. Check module fault bits in the controller. Use RSLinx or Studio 5000 to read node health. A stable bus with no faults points to a good cable. Repeat bus errors point to a cable or connector fault.
Why Buy From Oiltech Controls?
- More than 15 years in industrial automation spare parts
- Worldwide shipping with FedEx, UPS and DHL
- Tested surplus and refurbished options in stock
- 12-month warranty on every sale
- Technical check before each shipment
- Support for obsolete and hard-to-find control systems
Packing List and Shipping
- 1 x 1734-EXT3 extension cable
- Protective packing and anti-static wrap
- Commercial invoice and packing list
- Shipping by FedEx, UPS or DHL
- 12-month warranty included
FAQ
Q: What is the 1734-EXT3?
A: It is a 3 m POINTBus extension cable for POINT I/O.
Q: How long is the cable?
A: It is 3 meters long.
Q: Does it need power?
A: No. It is a passive cable.
Q: Can I install it while the node is live?
A: POINT I/O supports RIUP, but power down first for safety.
Q: What warranty do you offer?
A: We offer a 12-month warranty.
Q: How fast is shipping?
A: We ship by FedEx, UPS or DHL. Lead time depends on stock.
Contact Oiltech Controls
Email: info@oiltechcontrols.com
Phone / WhatsApp: +86 158 8020 0923
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