IS200STAIH2ADC GE Mark VI, Contact Input Terminal Board

Description:

The IS200STCIH2ADC is a Simplex Contact Input terminal board created by GE as part of the Mark VI series. This compact contact input terminal board is designed for either DIN-rail or flat mounting and accommodates 24 contact inputs with nominal excitation voltages of 24, 48, and 125 Vdc from an external source. The contact inputs feature noise suppression to safeguard against surge and high-frequency noise. The PAIC I/O Pack is compatible with this module. The I/O pack connects to the D-type connector and communicates with the controller via Ethernet. Only simplex systems are supported.

IS200STCIH2ADC Installation
The STCI, along with a plastic insulator, is mounted on a sheet metal carrier that is then installed on a DIN rail. Alternatively, the STCI plus insulator can be mounted on a sheet metal assembly that is bolted into a cabinet. The contact inputs are typically wired directly to the terminal block using #18 AWG wires. Shields should be terminated on a separate bracket. The STCIH2 features a right-angle header that accepts a variety of commercially available pluggable terminal blocks totaling 52 terminals.

Operation
The function and on-board signal conditioning are similar to those on the TBCI but scaled for 24, 48, and 125 Vdc excitation. The input excitation ranges are 16 to 32 Vdc, 32 to 64 Vdc, and 100 to 145 Vdc, respectively. The threshold voltage is 50% of the excitation voltage. The figure illustrates the contact sensing circuits. Contact input currents are limited to 2.5 mA on the first 21 circuits and 10 mA on circuits 22 through 24. The 24 Vdc power supply is current-limited to 0.5 A by resettable polymer positive temperature coefficient fuses. Filters reduce high-frequency noise and suppress surge at each input near the point of signal entry. Discrete input voltage signals are routed to the I/O processor, which converts them to digital signals and sends them to the controller.

IS200STCIH2ADC Characteristics
E1 and E2 are the labels on the terminal ring on either side of the terminal board. A single 37-pin (female) D-type connector and a single three-position female plug are located opposite the terminal strip on the board. On the short edges of the board, two round apertures are cut into the board, one opposite the other. Additionally, there are over 80 resistors, capacitors, diodes, and a single integrated circuit on the board.

Product Attributes
- Number of Available Channels: 24 dry contact voltage input channels.
- Nominal Excitation Voltage: 24 Vdc floating, ranging from 18.5 to 32 Vdc (Pluggable TB).
- Current Input: For applications requiring 24 Vdc: The first 21 circuits draw 2.5 mA, while the last three draw 10 mA.
- Hardware Filter: 4 ms input filter.
- I/O Board Fault Detection: Excitation voltage loss at the contact input, Contact input that does not respond in test mode.

Frequently Asked Questions:

1.What are the nominal excitation voltages that the IS200STAIH2ADC board accepts for its 24 contact inputs?
The operating temperature ranges from -30 to 65 degrees CelsiusThe board accepts 24 contact inputs with nominal 24, 48, and 125 V dc excitation from an external source.

2.What are the Characteristics of IS200STAIH2ADC?
The IS200STCIH2A terminal board features E1 and E2 labels on the terminal ring at either side. It includes a 37-pin female D-type connector and a three-position female plug opposite the terminal strip. The board has two round apertures on its short edges, one opposite the other, and contains over 80 resistors, capacitors, diodes, and a single integrated circuit.

Datasheet Link:

IS200STAIH2ADC GE Mark VI, Contact Input Terminal Board PDF Datasheet