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SPECIFICATIONS:
Part Number: IS210DSCBH1A
Manufacturer: General Electric
Function: Serial Communication Input/Output Terminal Board
Series: Mark VI
Number of Channels: 6
Baud Rate: 300 bps
Communication Type: Serial (RS-232, RS-485, RS-422)
Operating temperature: -30 to 65 ºC
Power Supply Voltage: 125 V dc
Technology: Surface Mount
Operating Temperature: -10°C to 60°C
Connector for VSCA cable: 37-pin
Board Size: 8.6 cm Wide X 16.2 cm
Availability: In Stock
Country of Origin: USA
Manual: GEH-6421I
FUNCTIONAL DESCRIPTION:
IS210DSCBH1A is a Serial Communication Input/Output Terminal Board manufactured and designed by General Electric as part of the Mark VI Series used in GE Speedtronic gas turbine control systems. The DSCB board is a compact interface terminal board, designed for DIN-rail mounting. DSCB connects to the Serial Communications Board (VSCA) with a 37-wire cable. VSCA provides communication interfaces with external devices, using RS-232C, RS422, and RS485 serial communications. The associated DSCB is wired to external devices, which include intelligent pressure sensors such as the smart HoneywellTM Pressure Transducers, and KollmorgenTM Electric Drives used for valve actuation.
The DSCB board is held in a plastic frame, which mounts on a vertical DIN rail. High-density Euro-Block type terminal blocks are permanently mounted to the board, with two screw connections for the ground connection (SCOM). Wiring to the devices uses shielded twisted pair, and communication signals have on-board noise suppression. An on-board ID chip identifies the board to VSCA for system diagnostic purposes.
INSTALLATION:
The wiring connections to the Euro-Block type terminal block as shown in the following figure. There are four terminals for the SCOM (ground) connection, which should be as short as possible. Jumpers J1 - J6 direct SIGRET either directly to SCOM or through a capacitor to SCOM. The shield must be grounded at one end or the other, but not both. If the shield is grounded at the device end, the jumpers should be set to include the capacitor in the circuit. If the shield is not grounded at the device end, the jumpers should be set to go directly to SCOM.
OPERATION:
The interaction between the DSCB and 12 Honeywell pressure transducers is shown in the accompanying figure using two of the six VSCA channels, Ports 1 and 2. For the RS422 multidrop signals, the three XDSA boards serve as intermediate distribution boards. On these boards, ports P1, P2, P3, and P4 are used to connect pressure transducers.
CONFIGURATION:
Each of the six channels has a jumper to connect the cable shield to the ground through a capacitor. This is used when the shield is grounded at the device end. The jumper positions are shown in the Installation section. All other configuration is done on the VSCA board and at the toolbox.
DIAGNOSTICS:
The DSCB terminal board and I/O board have their ID device, which is interrogated by the I/O board. The board ID is coded into a read-only chip containing the terminal board serial number, board type, revision number, and the JA1 connector. When the chip is read by the I/O board and a mismatch is encountered, a hardware incompatibility fault is created. Communication and device problems are detected by the VSCA and reported to the toolbox.
WOC maintains the largest inventory of Replacement Parts for GE Speedtronic Control Systems. Additionally, we offer warranty-backed unused and rebuilt boards as well as board repairs for your damaged ones. For your OEM needs, our team of professionals is available around the clock. We at WOC are happy to help you with any needs you may have in terms of automation. Please contact our team by phone or email for pricing and availability on any components and repairs.
What is a Serial Communication Input/Output Terminal Board?
A Serial Communication Input/Output Terminal Board is a device designed to facilitate communication between controllers, such as PLCs, industrial PCs, or embedded systems, and peripheral devices. It uses serial communication interfaces like RS-232, RS-485, or RS-422 to transmit and receive data efficiently. These boards are widely used in industrial automation, monitoring systems, and embedded applications where reliable data exchange is required.
What are the supported communication protocols?
Most Serial Communication Input/Output Terminal Boards support widely used protocols such as Modbus RTU and ASCII. Additionally, many boards allow for custom protocol configurations, making them suitable for various industrial and automation applications.
How many serial ports does the board have?
The number of serial ports on the board depends on the model. Typically, these boards are available in configurations ranging from a single port to multiple ports, such as 4, 6, or even 8 ports, to accommodate different communication needs.
