The General Electric IS200VRTDH1D, also cataloged as the IS200VRTDH1D RTD Card, operates as a dedicated hardware component for multi-channel resistance temperature detector signal acquisition within Mark VI VME control platforms.

Suffix Breakdown & Model Matrix

The IS200VRTDH1D represents a specific revision in the VRTD series. The "H1" designation indicates the standard RTD input configuration, while the "D" suffix denotes the specific hardware iteration level, confirming circuit board compatibility with existing Mark VI VME chassis bus backplanes.

Hardware Specifications

Backplane Bus Communication Velocity

The module interfaces with the Mark VI VME backplane to transmit processed temperature data to the controller. The internal bus communication velocity is optimized to ensure low-latency data updates, maintaining synchronization across the I/O rack. The onboard processing circuitry performs linearization of resistance inputs, converting analog values into high-resolution digital data packets that align with the deterministic timing requirements of the Mark VI processing environment.

Frequently Asked Questions

Q: Does this module support hot-swapping during active system operation?

A: No, the IS200VRTDH1D is not rated for hot-insertion or removal. The VME chassis must be powered down to avoid potential electrical arcing or corruption of the backplane bus timing.

Q: How is signal integrity maintained for high-resistance RTD cabling?

A: Signal integrity is maintained through proper shielded twisted-pair cabling. The RTD inputs must be terminated at the module terminal block, ensuring that the shield drain wire is connected to the chassis ground rail to suppress EMI and common-mode noise.

Field Installation Guidelines

1. Confirm all power sources to the Mark VI VME cabinet are verified as de-energized.
2. Inspect the VME backplane connector pins for any signs of oxidation or mechanical misalignment before card insertion.
3. Align the circuit board carefully within the chassis rails; ensure the card seating force is distributed evenly across the module faceplate.
4. Tighten the captive screws on the top and bottom of the faceplate to ensure electrical continuity for the grounding system.
5. Verify that field wiring corresponds to the designated terminal point assignments to prevent short-circuiting of the excitation current circuits.