Allen-Bradley Communication Modules Parts
Network • 23 parts available
Industrial networking hardware connects controllers, drives, and HMIs. This category includes Stratix switches and related communication products.
Best-selling Communication Modules parts
All best-selling parts →The Communication Modules part numbers NJT Automation sells most often, ranked by lifetime units sold.
| Part Number | Description | Price | |
|---|---|---|---|
| 1788-EN2PAR | Allen-Bradley 1788-EN2PAR /B EtherNet/IP to PROFIBUS PA Linking Device +Warranty · Refurbished | $7,499.99 USD | |
| 1784-CF128 | 1784CF128 Logic 556x Industrial CompactFlash Card 128MB | — | |
| 1784-CF64 | Card Non-Volatile Memory Flash Permanently Store a Program and Tag Data on a Controller | — | |
| 1784-KT | Data Highway Plus XT/AT Interface Module ISA/EISA, allows personal computers, workstations or terminals to... | — | |
| 1784-KTCX15 | Communication Interface Lets a 16-bit ISA or 32-bit EISA PC Communicate on ControlNet | — | |
| 1784-KTX | Communication Interface Card Interfaces Between 16-BIT ISA/EISA-BUS PC and Programmable Controllers | — | |
| 1784-KTXD | Communication Interface Card Interfaces Between Workstation and Processors on Multiple Networks Simultaneous | — | |
| 1784-PCC | ControlNet PC Communication Interface Card, PCMCIA | — | |
| 1784-PCD | DeviceNet PCMCIA Communication Interface Card for PC, provides interfaces between a computer and a DeviceNet network | — | |
| 1784-PCIC | ControlNet PCI Bus Messaging Card, provides ControlNet monitoring and configuration capabilities | — | |
| 1784-PCICS | ControlNet PCI Bus I/O Bridge messaging Card, ControlNet monitoring and configuration capabilities | — | |
| 1784-PCIDS | DeviceNet Universal PCI I/O Scanner Card, povides DeviceNet Monitoring, Configuration, and I/O Scan capabilities | — | |
| 1784-PCM5 | PLC Adapter Cable Assembly 9 Pin in D in Shell w/1784-CP7 Adapter | — | |
| 1784-PKTX | Communication Interface Card Data transmision management and local network diagnostics for PLC-5 processors over DH+... | — | |
| 1784-PKTXD | 1784-PKTXD PCI Bus Communication Card with 2*DH+/RIO & DH-485 | — | |
| 1784-SD1 | Card Non-Volatile Memory Flash Permanently Store a Program and Tag Data on a Controller | — | |
| 1784-SD2 | 2GB Secure Digital Card Ser A Plc And Dcs Parts And Accessory | — | |
| 1784-U2CN | PLC Adapter Cable Assembly Connects Microsoft Windows-Based Computer with a USB Interface | — | |
| 1784-U2DHP | PLC Cable Assembly Connects PLC-5 or SLC 5/04 8-pin mini-DIN to PC USB port | — | |
| 1788-CNCHKR | Allen-Bradley - 1788-CNCHKR | — | |
| 1788-EN2DN | EtherNet/IP to DeviceNet Linking Device, 24V DC | — | |
| 1788-EN2DNR | 1788-EN2DNR EtherNet/IP to DeviceNet Communication Module, DLR | — | |
| 1788-EN2FFR | Networks and Communication Products, Redundant EtherNet/IP to Foundation Fieldbus (H1) Liking Device | — |
Communication Modules buying & repair guidance
When ordering or requesting a quote, include the full catalog string from the unit's nameplate. Series and revision letters affect fit, firmware, and application compatibility.
Common Communication Modules failures
- Port failures and intermittent link flaps
- Power supply issues on managed switches
- Firmware corruption after interrupted updates
- Configuration loss after battery or NVRAM faults
Series & revision differences
Managed vs unmanaged, PoE, and CIP features differ by catalog. Keep the same Stratix family when preserving switch config and ring topology.
Repair or replace?
Repair is useful for port or PSU faults on current models. Replace when security features or port counts no longer meet the plant network standard.
Still have questions?
Find answers to shipping, warranties, repairs, and more.
Frequently Asked Questions
Do you stock Allen-Bradley Communication Modules parts?
Yes. NJT Automation maintains surplus and refurbished Communication Modules inventory in Milwaukee, with additional sourcing when a specific catalog number is not on the shelf. In-stock items above can ship the same business day when ordered by the cutoff.
Can you repair Communication Modules Network hardware?
In most cases, yes. We offer mail-in repair with testing and a 1-year warranty, with 2- and 3-year extended options available. Send photos and the catalog/series from the nameplate for a repair quote, often faster than waiting on obsolete new stock.
What if my exact series letter is not listed?
Request a quote with the full catalog string and series from the nameplate. We can confirm whether a nearby series is compatible or source the exact revision you need.
How fast can Communication Modules parts ship?
In-stock Milwaukee inventory typically ships the same business day when ordered before the cutoff, with ground and expedited options. Local pickup can be arranged. Contact us to schedule.