{"product_id":"ge-is200tdbsh2a-mark-vie-simplex-discrete-i-o-terminal-board","title":"GE IS200TDBSH2A Mark VIe Simplex Discrete I\/O Terminal Board","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe GE IS200TDBSH2A is a Simplex Discrete I\/O Terminal Board designed for the Mark VIe series of turbine control systems. This board provides reliable contact input sensing and relay output switching in a compact, DIN-rail mountable package. With 24 discrete contact inputs and 12 relay outputs, the IS200TDBSH2A offers robust I\/O expansion for demanding industrial environments.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eIS200TDBSH2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric (GE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eMark VI Speedtronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Designation\u003c\/td\u003e\n\u003ctd\u003eContact Input\/Relay Output Terminal Board (TDBS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e24 Discrete Contact Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e12 Relay Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation Voltage\u003c\/td\u003e\n\u003ctd\u003e125 VDC or 24 VDC (Jumper Selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18 to 132 VDC (Application Dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWetting Current\u003c\/td\u003e\n\u003ctd\u003e2.5 mA per Channel (Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Filter Constant\u003c\/td\u003e\n\u003ctd\u003e4 ms (Hardware-Based Debounce)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Type\u003c\/td\u003e\n\u003ctd\u003eForm-C (Changeover Architecture)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating\u003c\/td\u003e\n\u003ctd\u003e2.0 A Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Commutation Speed\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;10 ms (Typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Suppression\u003c\/td\u003e\n\u003ctd\u003eIntegrated Metal-Oxide Varistors (MOV) per Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Rating\u003c\/td\u003e\n\u003ctd\u003e1500 V RMS (Group Isolation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Connector\u003c\/td\u003e\n\u003ctd\u003e37-Pin D-Sub Connector (JR1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Blocks\u003c\/td\u003e\n\u003ctd\u003eTwo Barrier-Type Terminal Strips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Mode\u003c\/td\u003e\n\u003ctd\u003eSimplex Configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e23.8 cm (H) × 17.8 cm (W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-30°C to 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 Discrete Contact Inputs\u003c\/strong\u003e with group isolation and noise suppression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 Form-C Relay Outputs\u003c\/strong\u003e rated at 2.0 A continuous.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJumper-selectable excitation voltage\u003c\/strong\u003e (24 or 125 VDC) for flexible integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated MOV surge suppression\u003c\/strong\u003e protects against transients and high-frequency noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware-based 4 ms input filter\u003c\/strong\u003e ensures reliable debouncing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-rail or flat mounting\u003c\/strong\u003e options for easy installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe IS200TDBSH2A excels in gas and steam turbine control systems, where it interfaces with limit switches, pressure switches, and other discrete sensors. It also suits industrial process control panels requiring reliable relay outputs for valve actuators or alarm annunciators. The board's 1500 V RMS isolation ensures safe operation in high-voltage environments.\u003c\/p\u003e\u003cp\u003eIn a typical Mark VIe application, the IS200TDBSH2A connects to a PDIO I\/O pack via the 37-pin D-Sub connector, providing a clean interface between field devices and the controller. Its simplex configuration is ideal for non-redundant control loops.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the IS200TDBSH2A on a DIN rail using the included plastic insulator and sheet metal carrier, or bolt it directly into a cabinet. Wire field connections to the two 48-point terminal blocks (TB1 for relays, TB2 for contact inputs) using #18 AWG wire. Terminate shields on a separate bracket to avoid ground loops. If using an optional relay board, plug it onto connectors JW1 and JW2; it will be held in place by connector force.\u003c\/p\u003e\u003cp\u003eSet the excitation voltage jumper to match your system's wetting voltage (24, 48, or 125 VDC). Ensure the supply voltage is within the 18.5–32 VDC range for the board's internal 24 VDC supply.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRoutine inspection of the IS200TDBSH2A should focus on terminal block tightness and relay contact integrity. The board's polymer PTC fuses on the 24 VDC supply are resettable, reducing maintenance downtime. The operating range of -30°C to 65°C makes it suitable for harsh environments, but avoid condensation and excessive vibration.\u003c\/p\u003e\u003cp\u003eRegularly test relay switching and input sensing using the built-in diagnostics available through the controller. The MOV surge suppressors protect against voltage spikes, extending board life.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe IS200TDBSH2A integrates seamlessly with Mark VIe PDIO I\/O packs, which communicate with the controller over Ethernet. It is also compatible with GE's SRLY relay board and STCI contact input terminal board wiring assignments, simplifying retrofits. The board supports optional relay expansion via the WROBH1A option board for fused power distribution.\u003c\/p\u003e\u003ch2\u003eSelection Guide\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify your system's wetting voltage requirements and redundancy needs. The IS200TDBSH2A is simplex-only, so choose a redundant board if your application demands fail-safe operation. Confirm the 37-pin D-Sub connector (JR1) matches your PDIO pack. For expert advice and genuine GE parts, trust PLC Source PRO to supply the IS200TDBSH2A and compatible accessories.\u003c\/p\u003e","brand":"GE","offers":[{"title":"Default","offer_id":44446627397731,"sku":"IS200TDBSH2A","price":262.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/IS200TDBSH2A.jpg?v=1785945597","url":"https:\/\/www.plcsourcepro.com\/he\/products\/ge-is200tdbsh2a-mark-vie-simplex-discrete-i-o-terminal-board","provider":"PLC Source PRO","version":"1.0","type":"link"}