cFP‑1808 (National Instruments)

8‑Slot Ethernet/Serial Backplane for Compact FieldPoint

1. General Description

2. Part Number

• Model: cFP‑1808

• NI PN: 779463‑01

• Alternate: 192163F‑01

3. Key Specifications

• Slots: 8 × hot‑swappable cFP I/O modules

• Ethernet: 10/100 Mbps (RJ45, auto‑negotiate)

• Serial: RS‑232 (DB9)

• Protocols:

  • Ethernet: Modbus TCP, OPC, NI event‑driven

  • Serial: Modbus RTU/ASCII, Optomux

• Power: 24 VDC industrial input; 9 W max per module

• Operating Temp: ‑40 °C to +70 °C

• Storage Temp: ‑55 °C to +85 °C

• Shock/Vibration: 50 g shock, 5 g vibration (industrial rugged)

• Mounting: DIN rail / panel mount

• Dimensions: 245.9 × 127 × 83 mm (9.68 × 5.0 × 3.3 in)

• Weight: ~1.8 kg (3 lbs 14.4 oz)

4. Features

• 8‑slot expansion: Larger I/O capacity than cFP‑1804 (4‑slot)

• Hot‑swap: Replace modules without shutting down the system

• Dual communication: Ethernet + RS‑232 for flexible host connectivity

• Event‑driven I/O: Reduces network traffic by publishing only changed data

• Industrial rugged: Wide temperature range, high shock/vibration tolerance

• No onboard CPU: Backplane only; works with external controller/host

5. Compatible I/O Modules

• Analog input (voltage/current/thermocouple/RTD)

• Analog output

• Digital input/output

• Relay, counter/timer

6. Applications

• Distributed industrial I/O (factory floor, process control)

• Remote monitoring (pumping stations, pipelines, environmental)

• Building automation (HVAC, lighting, security)

• Legacy FieldPoint system upgrades

• High‑channel‑count field measurement