{"product_id":"allen-bradley-1715-tadib16d-redundant-digital-input-termination-assembly","title":"Allen-Bradley 1715-TADIB16D Redundant Digital Input Termination Assembly","description":"\u003cp\u003eThe \u003cstrong\u003e1715-TADIB16D\u003c\/strong\u003e is a duplex digital input termination assembly designed for the Bulletin 1715 Redundant I\/O architecture. It provides field wiring connection points for 16 digital input channels, splitting a single field signal input across two redundant 1715-IB16D digital input modules installed on an adjacent 1715-A3IO base unit. Equipped with individual channel fuses and maintaining continuous 50V isolation between channels, it enables high-availability signal routing for critical control applications without complex external wiring.\u003c\/p\u003e\n\u003ch3\u003eField Signal Routing and Duplex Isolation\u003c\/h3\u003e\n\u003cp\u003eThe assembly interface simplifies fault-tolerant wiring by routing incoming field signals directly to dual redundant input modules. When paired with two 1715-IB16D modules, field sensor contacts connect once at the \u003cstrong\u003e1715-TADIB16D\u003c\/strong\u003e terminal block. Internal signal separation splits the input voltage to both module backplane slots, enabling 1oo2D (1 out of 2 with diagnostics) logic in high-availability modes.\u003c\/p\u003e\n\u003cp\u003eUnlike simplex termination units, the \u003cstrong\u003e1715-TADIB16D\u003c\/strong\u003e supports full 50V continuous channel-to-channel isolation. This prevents field-side cross-talk, ground loops, or transient faults on one loop from compromising neighboring channels. Each channel includes an inline 50 mA protective fuse to safeguard internal backplane circuitry against field wiring overcurrent conditions.\u003c\/p\u003e\n\u003ch3\u003eSystem Architecture and Installation Requirements\u003c\/h3\u003e\n\u003cp\u003eThe termination assembly mounts on a standard DIN rail adjacent to the 1715-A3IO 3-slot I\/O base unit. Standard screw terminals accommodate wire sizes ranging from 0.33 to 1.5 mm² (22 to 16 AWG). Field connections should be tightened to a rated screw torque of 0.5 N·m (0.37 lb·ft) using a 0.4 x 2.0 mm flathead screwdriver to ensure reliable mechanical and electrical contact.\u003c\/p\u003e\n\u003cp\u003eConformally coated PCB components protect internal traces against harsh industrial atmospheres, complying with ANSI\/ISA-S71.04-2013 Class G1, G2, and G3 airborne contamination levels.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1715-TADIB16D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input Duplex Termination Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eBulletin 1715 Redundant I\/O System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported I\/O Module\u003c\/td\u003e\n\u003ctd\u003e1715-IB16D (Dual \/ Duplex mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Base Unit\u003c\/td\u003e\n\u003ctd\u003e1715-A3IO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e16 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0 to 32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Current Rating\u003c\/td\u003e\n\u003ctd\u003e6.5 mA per channel max @ 32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Fuses\u003c\/td\u003e\n\u003ctd\u003e50 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel-to-Channel Isolation\u003c\/td\u003e\n\u003ctd\u003e50V (continuous), basic insulation type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Withstand\u003c\/td\u003e\n\u003ctd\u003eType tested at 500 VAC for 60 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25 to +70 deg C (-13 to +158 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C (-40 to +185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e10% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size\u003c\/td\u003e\n\u003ctd\u003e0.33 to 1.5 mm² (22 to 16 AWG) solid or stranded copper wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrew Terminal Torque\u003c\/td\u003e\n\u003ctd\u003e0.5 N·m (0.37 lb·ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScrewdriver Size\u003c\/td\u003e\n\u003ctd\u003eFlathead 0.4 x 2.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003eDIN Rail Mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e132 x 84 mm (approx. 5.25 x 3.375 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.26 kg (0.57 lbs \/ 9.17 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary operational difference between the 1715-TASIB16D and 1715-TADIB16D termination assemblies?\u003c\/p\u003e\n\u003cp\u003eA: The 1715-TASIB16D is a simplex termination assembly designed for single 1715-IB16D module configurations without channel isolation. The \u003cstrong\u003e1715-TADIB16D\u003c\/strong\u003e is a duplex termination assembly that routes field wiring to two redundant 1715-IB16D modules and provides 50V channel-to-channel isolation.\u003c\/p\u003e\n\u003cp\u003eQ: Does field wiring need to be split manually to achieve input redundancy?\u003c\/p\u003e\n\u003cp\u003eA: No. Field sensor wiring connects directly to single terminal sets on the \u003cstrong\u003e1715-TADIB16D\u003c\/strong\u003e. The assembly internally duplicates and isolates the signal paths to both redundant 1715-IB16D modules.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53162536272152,"sku":"1715-TADIB16D","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1715-TADIB16D_Cocoai_24019549-bdf2-4d80-bb41-9e6a191171f3.jpg?v=1793933528","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1715-tadib16d-redundant-digital-input-termination-assembly","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}