Emerson KJ1611X1-FD1 RM100-24TX Network Switch

The Emerson KJ1611X1-FD1, also cataloged as the KJ1611X1-FD1 Network Switch, operates as a dedicated hardware component for deterministic data packet routing within DeltaV Distributed Control System networks.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel-to-Channel Isolation

The managed industrial switch architecture executes deterministic transport of critical process variables across plant networks, preventing traffic congestion from disrupting field-level loop communications. While field instruments communicate using the 4-20 mA HART loop protocol through standalone I/O modules, this hardware utilizes IEEE 802.1p priority queuing (QoS) to isolate and prioritize real-time control traffic from background historian data. The switch maintains continuous data isolation between logical subnets via 256 configured VLANs, ensuring that diagnostic payloads do not interfere with time-critical Inter-Controller Communication (ICC) strategies or backbone DCS loops.

Frequently Asked Questions

Q: What are the backplane or power supply failover parameters during a main supply disruption?

A: The hardware features dual redundant 24 VDC power input terminals. If the primary power circuit drops voltage, the internal solid-state switching logic executes a complete power failover in less than 10 ms, maintaining active link states across all 24 ports without data packet loss.

Q: How does the network switch isolate local ports against unauthorized physical network modifications?

A: The device interfaces with the DeltaV Network Device Command Center to enforce automatic port lockdown and ARP spoofing detection. Any unauthorized MAC address detected on an active port will trigger an immediate localized port isolation execution to protect the core control layer from external interference.

Field Installation Guidelines

• Snaps the switch directly onto standard 35 mm DIN rails or the specified DeltaV carrier base, confirming that the ground spring clip establishes solid electrical contact with the metal rail.
• Route all Category 5e or Category 6 shielded twisted-pair (STP) Ethernet cables through dedicated low-voltage wire trays separated from high-voltage AC motor lines.
• Connect both independent 24 VDC power sources to the terminal block utilizing separate, properly fused wire runs from distinct power supply modules.
• Terminate the network housing grounding terminal to the primary cabinet instrument earth ground bus bar using a minimum 14 AWG copper wire strap.
• Verify that the physical spacing around the enclosure allows sufficient ambient air movement to maintain thermal limits below the 70 deg C maximum threshold.