Overview
The DS200TBCBG1AAA is a General Electric RTD and milliamp input terminal board for the Mark V control system. It connects field signal wiring to the control system through dedicated terminal points and signal connectors. Furthermore, it supports 4-20 mA inputs, selectable 0-1 mA inputs and RTD connections, making it suitable for different input signal configurations within the same control platform.
Product Function
The DS200TBCBG1AAA provides connection points for RTD and analog current input signals. It directs these signals through separate connectors to the TCCB board, allowing the control system to receive field measurement signals.
For example, the JHH connector handles milliamp input signals, while the JII connector handles RTD signals. Therefore, technicians can identify the signal paths when checking field wiring or replacing the board.
Signal Configuration
The board uses hardware jumpers to configure specific milliamp input connections.
- BJ1-BJ22: These jumpers configure milliamp input connections to DCOM.
- BJ23-BJ30: These jumpers allow channels 15-22 to use either 4-20 mA or 0-1 mA input signals.
- JHH connector: Routes milliamp input signals toward the TCCB board.
- JII connector: Routes RTD input signals toward the TCCB board.
Furthermore, the jumper positions must match the connected field signal range. Technicians should check the existing configuration before replacing the board or changing field wiring.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DS200TBCBG1AAA |
| Brand | General Electric |
| Series | Mark V |
| Product Type | RTD and 4-20 mA Input Termination Board |
| Functional Abbreviation | TBCB |
| Input Signal Types | RTD, 4-20 mA |
| Selectable Current Input Range | 0-1 mA for designated channels |
| Number of Terminal Positions | 48 |
| Milliamp Input Connector | JHH |
| RTD Input Connector | JII |
| Jumper Configuration | BJ1-BJ22, BJ23-BJ30 |
| Current Rating | 5 A per terminal |
| Maximum Terminal Voltage | 300 V AC/DC |
| Contact Resistance | Less than 5 mOhm initial |
| Isolation Resistance | Greater than 100 MOhm at 500 V DC |
| Dielectric Strength | 2000 V AC for 1 minute |
| Operating Temperature | -20 to +70 deg C |
| Storage Temperature | -40 to +85 deg C |
| Relative Humidity | 5% to 95%, non-condensing |
| Country of Origin | USA |
| Customs Tariff Code | 8537101190 |
| Shipping Dimensions | 28.6 x 7 x 3.5 cm |
| Weight | 0.3 kg |
Replacement and Configuration Checks
Before ordering a replacement DS200TBCBG1AAA, check the complete part number and all three suffix characters. In addition, compare the terminal wiring, connector positions and jumper settings with the existing board.
The 4-20 mA and 0-1 mA configurations require particular attention. Selecting the wrong jumper arrangement may cause the input circuit to use an incorrect signal range.
Frequently Asked Questions
Q: What signals does the DS200TBCBG1AAA support?
A: The board supports RTD and milliamp input connections. In addition, designated milliamp channels support selectable 4-20 mA or 0-1 mA ranges through hardware jumpers.
Q: What are the JHH and JII connectors used for?
A: JHH carries milliamp input signals, while JII carries RTD input signals. Both connectors route their respective signals toward the TCCB board.
Q: What should technicians check before replacing this board?
A: First, confirm the complete DS200TBCBG1AAA part number. Then, check the field wiring, connector assignments and jumper positions. Finally, make sure the replacement configuration matches the required input signal ranges.
