The Emerson KJ3203X1-BK1, also cataloged as the KJ3203X1-BK1 Discrete Input Card, operates as a dedicated hardware component for 24 VDC dry contact status monitoring and field state acquisition within Emerson DeltaV S-Series platforms.
Hardware Specifications
Parameter
Specification
Model
KJ3203X1-BK1
Brand
Emerson
Origin
USA
Weight
3.00 kg (Shipping Weight)
Dimensions
Standard DeltaV S-Series Card Dimensions
Operating Temp
-40 to 70 deg C
Power Consumption
3.0 W @ 24 VDC (Local Bus Draw)
System Platform
DeltaV S-Series
Channel Density
32 Channels
Input Signal Type
24 VDC Dry Contact
Channel Isolation
Channel-to-channel isolation supported via optic coupling
Channel-to-Channel Isolation and Dry Contact Signal Processing
Designed for high-density discrete monitoring in Emerson DeltaV DCS architectures, the KJ3203X1-BK1 routes 32 independent dry contact sense loops with integrated channel-to-channel isolation. Optical isolation barriers prevent ground loop currents and field-side electrical surges from propagating across the S-Series backplane bus. The module injects low-voltage wetting current into field contacts to detect contact closure while filtering out contact bounce and high-frequency noise prior to backplane signal latching.
Frequently Asked Questions
Q: Does the KJ3203X1-BK1 support live Removal and Insertion Under Power (RIUP)?
A: Yes, the card can be inserted or removed from its S-Series carrier base while the system node is powered, without disturbing adjacent I/O cards or interrupting backplane communication.
Q: Is external power required to drive the field dry contacts connected to this card?
A: The card provides internal current-limited wetting voltage to detect contact closure across passive dry contacts, eliminating the need for external loop power on standard field contact circuits.
Field Installation Guidelines
Inspect carrier slot guide rails and backplane pin headers for cleanliness before inserting the KJ3203X1-BK1 card.
Align the module vertically into its designated S-Series carrier slot and press firmly until the top and bottom latching clips click locked.
Wire field contacts to the matching S-Series terminal block assembly using stranded copper wire (0.2 to 2.5 mm2 / 24 to 12 AWG).
Ensure signal cable shielding is grounded to the carrier ground bar at a single point to prevent noise coupling on discrete sense channels.
