The Emerson KJ4002X1-BF2, also cataloged as the KJ4002X1-BF2 Extender Cable, operates as a dedicated hardware component for horizontal backplane bus extension and local carrier interconnection within Emerson DeltaV DCS platforms.
Hardware Specifications
Parameter
Specification
Model
KJ4002X1-BF2
Brand
Emerson
Origin
USA
Weight
2.00 kg
Dimensions
1.2 m Cable Length
Operating Temp
-40 to 70 deg C
Power Consumption
Passive (bus conductor assembly)
Cable Type
Horizontal Carrier Extender Cable
Connector Pin Count
44-Pin High-Density Connector
System Compatibility
DeltaV System Local Carriers
Channel-to-Channel Isolation and Bus Signal Integrity
Engineered for multi-carrier DeltaV rack expansion, the KJ4002X1-BF2 delivers deterministic high-speed parallel signal routing across its 44-pin shielded conductor bus. Embedded line impedance shielding maintains channel-to-channel isolation and crosstalk suppression across adjacent high-frequency logic lines, protecting underlying 4-20 mA HART and digital I/O signal passes from high-frequency electromagnetic noise when spanning across cabinet bays.
Frequently Asked Questions
Q: Can the KJ4002X1-BF2 extender cable be connected or disconnected while DeltaV carrier power is active?
A: No, carrier bus extender cables must never be disconnected or plugged in while the backplane power supply is energized, as interrupting parallel bus lines under load can cause controller reset or I/O communication fault states.
Q: What is the maximum recommended bending radius for the 1.2-meter 44-pin assembly during cabinet routing?
A: To preserve inner conductor shielding and prevent signal attenuation across 44-pin lines, maintain a minimum bend radius of 75 mm along the cable run.
Field Installation Guidelines
Power down the carrier power supply modules on both the local and expansion carriers before installing or removing the extender cable assembly.
Align the 44-pin high-density connectors carefully with the extender ports on the horizontal carrier bases to prevent pin bending.
Hand-tighten the connector thumbscrews at both ends until fully seated; torque to 0.3 Nm (2.6 in-lbs) to ensure grounding continuity through the connector shell.
Route the 1.2-meter cable through dedicated low-voltage wiring troughs, keeping it separated by at least 100 mm from AC power distribution cabling.
