{"title":"Signal Controllers","description":"","products":[{"product_id":"dap1-ns","title":"DAP1-NS Semaphore Switcher for Dapol Signals","description":"\u003cp data-start=\"172\" data-end=\"398\"\u003eThis \u003cstrong data-start=\"177\" data-end=\"198\"\u003eSignal Controller\u003c\/strong\u003e is designed to detect the presence of trains and automatically operate a semaphore signal in response. It provides an easy way to add realistic, hands-free signal operation to a model railway layout.\u003c\/p\u003e\n\u003cp data-start=\"400\" data-end=\"652\"\u003eThe module detects trains by emitting invisible infra-red (IR) light towards the underside of the rolling stock and sensing the reflected light. When a train is detected, a built-in control program operates the connected semaphore signal automatically.\u003c\/p\u003e\n\u003chr data-start=\"654\" data-end=\"657\"\u003e\n\u003ch3 data-start=\"659\" data-end=\"674\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"676\" data-end=\"979\"\u003eProvides a quick and simple way to add automation to semaphore signals.\u003c\/li\u003e\n\u003cli data-start=\"676\" data-end=\"979\"\u003eRequires only four wires to connect for fast and straightforward installation.\u003c\/li\u003e\n\u003cli data-start=\"676\" data-end=\"979\"\u003eNo programming is required, though all settings can be adjusted if desired.\u003c\/li\u003e\n\u003cli data-start=\"676\" data-end=\"979\"\u003eOperates from the same power supply as the signal, simplifying wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"981\" data-end=\"984\"\u003e\n\u003ch3 data-start=\"986\" data-end=\"1014\"\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1016\" data-end=\"1060\"\u003eOperates from 9V to 12V DC or 12V to 16V AC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1062\" data-end=\"1065\"\u003e\n\u003ch3 data-start=\"1067\" data-end=\"1093\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-start=\"1095\" data-end=\"1240\"\u003eFor detailed information on installation, wiring connections, and troubleshooting, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-start=\"1095\" data-end=\"1240\"\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1SAP9hQd-tHzAMd_iFGBwLp-jX61dR0LV\/view?usp=sharing\" title=\"DAP1NS\" rel=\"noopener\" target=\"_blank\"\u003eProduct Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":56826195018073,"sku":null,"price":16.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/DAP1NS_ea7cce1a-bf6e-413f-baac-7b920fb01581.png?v=1777336293"},{"product_id":"dap2-g","title":"DAP2-G Semaphore Signal Controller for Dapol Servo Gantry Signals","description":"\u003cp data-start=\"172\" data-end=\"462\"\u003eThe \u003cstrong data-start=\"176\" data-end=\"202\"\u003eBLOCKsignalling DAP2-G\u003c\/strong\u003e is designed to automate \u003cem data-start=\"227\" data-end=\"263\"\u003e\u003cem data-start=\"228\" data-end=\"235\"\u003eDapol\u003c\/em\u003e motorised junction signals\u003c\/em\u003e*, automatically operating the correct signal arm based on the route set by the points (turnouts). This allows realistic, hands-free signal operation that accurately reflects track and points status.\u003c\/p\u003e\n\u003cp data-start=\"464\" data-end=\"735\"\u003eThe module monitors track current to detect approaching trains and also monitors points operation to determine their position. Using this information, the DAP2-G automatically controls the connected Dapol servo signal to display the correct aspect for the selected route.\u003c\/p\u003e\n\u003chr data-start=\"737\" data-end=\"740\"\u003e\n\u003ch3 data-start=\"742\" data-end=\"757\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"759\" data-end=\"1216\"\u003eMonitors track current to detect the presence of trains approaching the points.\u003c\/li\u003e\n\u003cli data-start=\"759\" data-end=\"1216\"\u003eMonitors points operation to determine the current turnout position.\u003c\/li\u003e\n\u003cli data-start=\"759\" data-end=\"1216\"\u003eAutomatically operates the correct Dapol servo signal arm for the selected route.\u003c\/li\u003e\n\u003cli data-start=\"759\" data-end=\"1216\"\u003eWorks with both facing (diverging) and trailing (converging) points.\u003c\/li\u003e\n\u003cli data-start=\"759\" data-end=\"1216\"\u003eProgrammable delay settings allow timing to be tailored to the layout.\u003c\/li\u003e\n\u003cli data-start=\"759\" data-end=\"1216\"\u003eAll inputs and outputs are electrically isolated for safety and reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1218\" data-end=\"1221\"\u003e\n\u003ch3 data-start=\"1223\" data-end=\"1251\"\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1253\" data-end=\"1284\"\u003eRequires a 12V DC power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1286\" data-end=\"1289\"\u003e\n\u003ch3 data-start=\"1291\" data-end=\"1316\"\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1318\" data-end=\"1343\"\u003eSignals are not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1345\" data-end=\"1348\"\u003e\n\u003ch3 data-start=\"1350\" data-end=\"1376\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-start=\"1378\" data-end=\"1524\"\u003eFor detailed information on installation, wiring connections, and troubleshooting, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-start=\"1378\" data-end=\"1524\"\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1YSTLV69eESdgCFM0k2qRfUsodXa66cUp\/view?usp=sharing\" title=\"DAP2G\" rel=\"noopener\" target=\"_blank\"\u003eProduct Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":56826438975833,"sku":null,"price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/DAP2.png?v=1777336501"},{"product_id":"asp1-ns","title":"ASP1-NS Automatic Signal Control","description":"\u003cp data-end=\"699\" data-start=\"346\"\u003eThe Automatic LED Signal Controller ASP1-NS is a compact module designed to automatically operate multi-aspect LED signals whenever a train passes over its built-in infra-red sensor. It provides effortless, realistic signal control on model railways, fading LEDs to simulate incandescent bulbs and requiring no soldering, programming, or complex wiring.\u003c\/p\u003e\n\u003cp data-end=\"842\" data-start=\"701\"\u003eIt offers a simple and reliable way to add automation to 2-, 3-, or 4-aspect signals, making advanced signalling accessible to all modelers.\u003c\/p\u003e\n\u003chr data-end=\"847\" data-start=\"844\"\u003e\n\u003ch3 data-end=\"695\" data-start=\"680\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eControlling multi-aspect LED signals on model railways has never been easier.\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eDetects trains passing overhead using its in-built infra-red sensor.\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eFades signal LEDs in and out to simulate incandescent bulbs.\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eVery simple to connect to signals.\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eNo soldering required — all components are pre-wired.\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eNo programming required, but all settings are fully adjustable.\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eFor use with common-cathode LED signals (not bulb-based signals).\u003c\/li\u003e\n\u003cli data-end=\"1343\" data-start=\"871\"\u003eRequires a 12V DC power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1348\" data-start=\"1345\"\u003e\n\u003ch3 data-end=\"1241\" data-start=\"1213\"\u003eElectrical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1733\" data-start=\"1385\"\u003eOperates from a 12V DC plug-top power supply.\u003c\/li\u003e\n\u003cli data-end=\"1733\" data-start=\"1385\"\u003eCurrent draw is less than 0.01A, allowing many modules to run from a 0.5–1A supply.\u003cbr data-end=\"1519\" data-start=\"1516\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1733\" data-start=\"1385\"\u003eBuilt-in resistors mean no external resistors are required.\u003cbr data-end=\"1581\" data-start=\"1578\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1733\" data-start=\"1385\"\u003eIncorrect polarity causes no damage, though the module will not operate.\u003cbr data-end=\"1656\" data-start=\"1653\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1733\" data-start=\"1385\"\u003eNot suitable for use with unregulated accessory outputs on train controllers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1738\" data-start=\"1735\"\u003e\n\u003ch3 data-end=\"1307\" data-start=\"1281\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-end=\"1942\" data-start=\"1772\"\u003eFor installation instructions, wiring guidance, operating details, programming information, and troubleshooting assistance, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-end=\"1942\" data-start=\"1772\"\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1Jtap27A_-wycsoOay-mkquX5LTT3kLMs\/view?usp=sharing\" target=\"_blank\" title=\"ASP1NS\" rel=\"noopener\"\u003eProduct Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":56935712358745,"sku":null,"price":17.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/ASP1NS_e8d8ade5-77d6-4a3e-823d-4aea89f28099.png?v=1777330992"},{"product_id":"asp1a","title":"ASP1A Infra-Red Aspect Signal Controller","description":"\u003cp data-start=\"466\" data-end=\"739\"\u003eThis Signal Controller detects trains by projecting invisible infra-red light and sensing the reflection from the underside of the rolling stock. Once triggered by a passing train, the module runs built-in programs to simulate the operation of 2-, 3- or 4-aspect signals.\u003c\/p\u003e\n\u003cp data-start=\"741\" data-end=\"772\"\u003eRequires a 12V DC power supply.\u003c\/p\u003e\n\u003cp data-start=\"774\" data-end=\"1016\"\u003eAll signals normally show green. When a train passes the detector, the signal switches to red. After the train has fully cleared the detector, the module returns the signal to green, passing through yellow and double yellow where appropriate.\u003c\/p\u003e\n\u003cp data-start=\"1018\" data-end=\"1148\"\u003eThis module includes realistic fading between aspects to simulate filament lamp behaviour, with adjustable fade rates if required.\u003c\/p\u003e\n\u003cp data-start=\"1150\" data-end=\"1355\"\u003eAll timing settings are fully programmable to suit the scale being modelled. The unit is supplied pre-programmed with the most common settings, requiring only the selection of 2-, 3- or 4-aspect operation.\u003c\/p\u003e\n\u003chr data-start=\"1357\" data-end=\"1360\"\u003e\n\u003ch3 data-end=\"1307\" data-start=\"1281\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eNo calibration required – works out of the box.\u003cbr data-start=\"1431\" data-end=\"1434\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eNo modifications required to rolling stock.\u003cbr data-start=\"1477\" data-end=\"1480\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eNot affected by light or dark, or changes in light level.\u003cbr data-start=\"1537\" data-end=\"1540\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eCan be triggered by trains in either direction.\u003cbr data-start=\"1587\" data-end=\"1590\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eCan be powered from AC or DC supplies.\u003cbr data-start=\"1628\" data-end=\"1631\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eNo external resistors required as these are built in.\u003cbr data-start=\"1684\" data-end=\"1687\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1771\"\u003eMade for use with common-cathode signals (ASP2A available for common-anode signals).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1773\" data-end=\"1776\"\u003e\n\u003ch3 data-end=\"1307\" data-start=\"1281\"\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1800\" data-end=\"2209\"\u003eThe infra-red sensor is installed below the trackbed.\u003cbr data-start=\"1853\" data-end=\"1856\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"2209\"\u003eDetection range is approximately 25 mm at normal sensitivity, adjustable if required.\u003cbr data-start=\"1941\" data-end=\"1944\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"2209\"\u003eThe detector fits into an 8 mm hole drilled through the baseboard.\u003cbr data-start=\"2010\" data-end=\"2013\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"2209\"\u003eThe sensor can be secured using blutack, polystyrene, or similar materials.\u003cbr data-start=\"2088\" data-end=\"2091\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"2209\"\u003eThe LED diameter is 2.2 mm, allowing clear visibility between sleepers even on smaller scales.\u003cbr data-start=\"2185\" data-end=\"2188\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1800\" data-end=\"2209\"\u003eSignals not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1307\" data-start=\"1281\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-end=\"1454\" data-start=\"1309\"\u003eFor detailed information on installation, wiring connections, and troubleshooting, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-end=\"1454\" data-start=\"1309\"\u003e\u003ca rel=\"noopener\" title=\"ASP1A\" href=\"https:\/\/drive.google.com\/file\/d\/1DoAJmXraNYmzxkWaDuxKGLJwGlQ5G--d\/view?usp=sharing\" target=\"_blank\"\u003eProduct Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":56935898251609,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/ASP1A_Image_Sensor_9c602b0e-4fda-482f-9adc-be4e1a8ab27f.jpg?v=1780594754"},{"product_id":"asp2a","title":"ASP2A Infra-Red Aspect Signal Controller","description":"\u003cp data-end=\"605\" data-start=\"215\"\u003eThe \u003cstrong data-end=\"246\" data-start=\"219\"\u003eASPECT CONTROLLER ASP2A\u003c\/strong\u003e is an advanced infra-red signal controller designed to deliver realistic, automated signal operation on model railway layouts. Using invisible infra-red (IR) light reflected from the underside of rolling stock, the controller accurately detects passing trains and automatically manages signal aspects without the need for track isolation or manual switching.\u003c\/p\u003e\n\u003cp data-end=\"1039\" data-start=\"607\"\u003eOnce a train is detected, the controller runs built-in programs to simulate authentic 2-, 3-, or 4-aspect signalling sequences. The signal will return to green only after the train has fully cleared the detector, passing through yellow and double-yellow stages where appropriate. With smooth fading between aspects and configurable timings, the ASP2A provides highly realistic operation suited to a wide range of layouts and scales.\u003c\/p\u003e\n\u003cp data-end=\"1265\" data-start=\"1041\"\u003eDesigned specifically for common-anode LED signals, the ASP2A is ideal for most European and US-manufactured signals, offering reliable detection, flexible programming, and prototypical behavior straight out of the box.\u003c\/p\u003e\n\u003chr data-end=\"1270\" data-start=\"1267\"\u003e\n\u003ch3 data-end=\"1287\" data-start=\"1272\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eInfra-red train detection using reflected IR light from rolling stock.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eSupports 2-, 3-, and 4-aspect signal operation.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eAutomatically switches signals to red when a train is detected.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eRealistic return to green via yellow and double-yellow aspects where applicable.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eSmooth fading between signal aspects for authentic appearance.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eAdjustable timing for red, yellow, and double-yellow phases.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eConfigurable detection sensitivity and release time to ignore carriage gaps.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eYellow and double-yellow stages revert to red if another train is detected.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eBuilt-in resistors for direct LED connection (no external resistors required).\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1291\"\u003eDesigned exclusively for common-anode LED signals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1992\" data-start=\"1989\"\u003e\n\u003ch3 data-end=\"2022\" data-start=\"1994\"\u003eCompatibility Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"2095\" data-start=\"2026\"\u003eDesigned for use with common-anode (common positive) LED signals.\u003c\/li\u003e\n\u003cli data-end=\"2095\" data-start=\"2026\"\u003eSuitable for most European and US-manufactured signals.\u003c\/li\u003e\n\u003cli data-end=\"2095\" data-start=\"2026\"\u003eCompatible with 2-, 3-, and 4-aspect signalling layouts.\u003c\/li\u003e\n\u003cli data-end=\"2095\" data-start=\"2026\"\u003eOperates with an external 12V DC power supply.\u003c\/li\u003e\n\u003cli data-end=\"2095\" data-start=\"2026\"\u003eTypical current consumption: 25mA.\u003c\/li\u003e\n\u003cli data-end=\"2095\" data-start=\"2026\"\u003eNot suitable for common-cathode signals (use ASP1A instead).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1298\" data-end=\"1301\"\u003e\n\u003ch3 data-start=\"1303\" data-end=\"1329\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-start=\"1331\" data-end=\"1476\"\u003eFor detailed information on installation, wiring connections, and troubleshooting, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-start=\"1331\" data-end=\"1476\"\u003e\u003ca rel=\"noopener\" title=\"ASP2A\" href=\"https:\/\/drive.google.com\/file\/d\/11WoHS3E1pc-_uH84Cfv-tUZDoulwjxa8\/view?usp=sharing\" target=\"_blank\"\u003eUser Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":56935906017625,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/ASP2A_Image_1.jpg?v=1781022098"},{"product_id":"asp2ns","title":"ASP2-NS Automatic Signal Control","description":"\u003cp data-end=\"501\" data-start=\"304\"\u003eThe \u003cstrong data-end=\"335\" data-start=\"308\"\u003eBLOCKsignalling ASP2-NS\u003c\/strong\u003e provides automatic control for multi-aspect light signals on model railway layouts, delivering realistic operation while greatly simplifying wiring and installation.\u003c\/p\u003e\n\u003cp data-end=\"751\" data-start=\"503\"\u003eBLOCKsignalling is a professional UK-based manufacturer of model railway electronic accessories. Our modules are designed with realism, ruggedness, and long-term reliability as key priorities, ensuring dependable performance for years of operation.\u003c\/p\u003e\n\u003cp data-end=\"1060\" data-start=\"753\"\u003eWorking signals add life and realism to any layout, but wiring signals - especially those with multiple aspects - can quickly become complex. This BLOCKsignalling controller allows signals to be connected to almost any power source and significantly simplifies the wiring between the module and the signal head.\u003c\/p\u003e\n\u003cp data-end=\"1324\" data-start=\"1062\"\u003eSignals normally display green. When a train passes the detector, the signal immediately switches to red. Once the train has fully cleared the detector, the signal returns to green, passing through yellow and double-yellow stages when using multi-aspect signals.\u003c\/p\u003e\n\u003cp data-end=\"1554\" data-start=\"1326\"\u003eThe module features realistic fading between aspects to simulate the behavior of traditional filament lamps. The fade rate can be adjusted to suit your layout or disabled entirely if a sharper LED-style transition is preferred.\u003c\/p\u003e\n\u003chr data-end=\"1559\" data-start=\"1556\"\u003e\n\u003ch3 data-end=\"1576\" data-start=\"1561\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eAutomatic control of light aspect signals\u003cbr data-end=\"1621\" data-start=\"1618\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eSignals normally show green and switch to red when a train is detected\u003cbr data-end=\"1694\" data-start=\"1691\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eReturns to green once the train has fully cleared the detector\u003cbr data-end=\"1759\" data-start=\"1756\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eIntermediate yellow and double-yellow aspects supported\u003cbr data-end=\"1817\" data-start=\"1814\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eRealistic fading between aspects to simulate filament lamps\u003cbr data-end=\"1879\" data-start=\"1876\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eAdjustable fade rates or fade can be disabled\u003cbr data-end=\"1927\" data-start=\"1924\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eSimplifies wiring for multi-aspect signals\u003cbr data-end=\"1972\" data-start=\"1969\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eBuilt-in resistors – no external resistors required\u003cbr data-end=\"2026\" data-start=\"2023\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2069\" data-start=\"1577\"\u003eDesigned for reliable long-term operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2074\" data-start=\"2071\"\u003e\n\u003ch3 data-end=\"2104\" data-start=\"2076\"\u003eCompatibility Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"2427\" data-start=\"2105\"\u003eSuitable for common-anode (common positive) LED signals\u003cbr data-end=\"2163\" data-start=\"2160\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2427\" data-start=\"2105\"\u003eTypically compatible with European, Asian, and American signal manufacturers\u003cbr data-end=\"2242\" data-start=\"2239\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2427\" data-start=\"2105\"\u003eCompatible with 2-, 3-, and 4-aspect signals\u003cbr data-end=\"2289\" data-start=\"2286\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2427\" data-start=\"2105\"\u003eNot suitable for filament lamps\u003cbr data-end=\"2323\" data-start=\"2320\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2427\" data-start=\"2105\"\u003eFor common-cathode signals (Eckon, Train Tech, Berko, Traintronics, Absolute Aspects), use \u003cstrong data-end=\"2425\" data-start=\"2414\"\u003eASP1-NS\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2432\" data-start=\"2429\"\u003e\n\u003ch3 data-end=\"2455\" data-start=\"2434\"\u003ePower Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"2653\" data-start=\"2456\"\u003eCan be powered from 8V to 25V DC\u003cbr data-end=\"2491\" data-start=\"2488\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2653\" data-start=\"2456\"\u003eCan be powered from 8V to 16V AC\u003cbr data-end=\"2526\" data-start=\"2523\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2653\" data-start=\"2456\"\u003eCan be powered directly from the DCC power bus or track\u003cbr data-end=\"2584\" data-start=\"2581\"\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2653\" data-start=\"2456\"\u003eBuilt-in resistors eliminate the need for external current limiting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3373\" data-end=\"3376\"\u003e\n\u003ch3 data-start=\"3378\" data-end=\"3404\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-start=\"3406\" data-end=\"3556\"\u003eFor full installation instructions, wiring diagrams, programming options, and troubleshooting guidance, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-start=\"3558\" data-end=\"3585\"\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1NQ2TRp7JAB3VetadIBh8PAi4-2gYdwmM\/view?usp=sharing\" title=\"ASP2NS\" rel=\"noopener\" target=\"_blank\"\u003eUser Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":56935987183961,"sku":null,"price":17.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/ASP2NS.png?v=1777331187"},{"product_id":"dap1a","title":"DAP1A Automatic Semaphore Signal Controller","description":"\u003cp data-end=\"351\" data-start=\"0\"\u003eThe \u003cstrong\u003eBLOCKsignalling DAP1A\u003c\/strong\u003e is an automatic semaphore signal controller designed to bring realistic train detection and signal operation to your model railway. Using an infra-red sensor mounted beneath the track, the module detects passing trains and automatically changes the connected Dapol semaphore signal from Danger to Clear.\u003c\/p\u003e\n\u003cp data-end=\"629\" data-start=\"353\"\u003eOnce the train has passed, the signal remains at Clear for a user-defined period before returning to Danger, simulating authentic railway operation without manual input. The module also includes outputs for control panel LEDs, allowing you to monitor signal status remotely.\u003c\/p\u003e\n\u003cp data-end=\"860\" data-start=\"631\"\u003eThe DAP1A is fully programmable, with adjustable timing, detection sensitivity, and release delay. Settings are configured using a simple push button and LED feedback system, making it easy to tailor performance to your layout.\u003c\/p\u003e\n\u003chr data-start=\"918\" data-end=\"921\"\u003e\n\u003ch3 data-start=\"923\" data-end=\"938\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eAutomatically operates a Dapol semaphore signal based on train detection.\u003cbr data-end=\"953\" data-start=\"950\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eInfra-red sensor detects trains passing above the track.\u003cbr data-end=\"1012\" data-start=\"1009\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eAdjustable delay before the signal returns to Danger.\u003cbr data-end=\"1068\" data-start=\"1065\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eConfigurable release time to handle longer trains with multiple carriages.\u003cbr data-end=\"1145\" data-start=\"1142\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eBuilt-in programming system using push button and LED feedback.\u003cbr data-end=\"1211\" data-start=\"1208\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eAdditional outputs for red and green control panel LEDs.\u003cbr data-end=\"1270\" data-start=\"1267\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eAdjustable sensor sensitivity for different environments and layouts.\u003cbr data-end=\"1342\" data-start=\"1339\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eRemembers signal state even after power is switched off.\u003cbr data-end=\"1401\" data-start=\"1398\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"940\" data-end=\"1431\"\u003eCompact design for easy installation beneath the layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1433\" data-end=\"1436\"\u003e\n\u003ch3 data-start=\"1438\" data-end=\"1464\"\u003eElectrical Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1466\" data-end=\"1497\"\u003e16V AC power supply required.\u003cbr data-end=\"1519\" data-start=\"1516\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1466\" data-end=\"1497\"\u003eDedicated output terminals provide power directly to the connected signal.\u003cbr data-end=\"1596\" data-start=\"1593\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1466\" data-end=\"1497\"\u003eAdditional outputs supply approximately 12V for LED indication (series resistor required).\u003cbr data-end=\"1689\" data-start=\"1686\"\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1466\" data-end=\"1497\"\u003eCareful wiring is essential to prevent damage to the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1499\" data-end=\"1502\"\u003e\n\u003ch3 data-start=\"1504\" data-end=\"1530\"\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp data-start=\"1532\" data-end=\"1677\"\u003eFor detailed information on installation, wiring connections, and troubleshooting, please download the latest instruction manual:\u003c\/p\u003e\n\u003cp data-start=\"1532\" data-end=\"1677\"\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1V9a_XLgJOMoy9qP-Zuk-WXRUxeLjv98y\/view?usp=sharing\" target=\"_blank\" title=\"DAP1A\" rel=\"noopener\"\u003eProduct Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":57594074988889,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/DAP1A.png?v=1777336604"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/collections\/C7.png?v=1776968903","url":"https:\/\/blocksignalling.co.uk\/collections\/signal-controllers.oembed","provider":"BLOCKsignalling","version":"1.0","type":"link"}