About the IS2020DRLYH1A
A number of important tips and specifications exist for this IS2020DRLYH1A model of printed circuit board. To begin, this Contact Relay Output Terminal Board makes use of numerous output relays affixed to its base board; 12 output relays in total. Each of these output relays have one form-C contact apiece, and they all connect to the necessary VCRC processing board through the use of a 37-pin cable. This 37-pin cable is exactly the same as the cables that features on the base board of the much bigger TRLY circuit board, also from the Mark VI Speedtronic series.
Considering the fact that solenoid source power is not available to the IS2020DRLYH1A; it should come as no surprise that this PCB has one set of dry contacts per relay. Only a simplex version of this compact relay output terminal board is available, as of this moment, although multiple revised versions of the parent IS2020DRLY board exist. One such revision exists in this "H1A" model, which indicates a general purpose relay output terminal with ratings spanning across the majority of relevant applications. Please don't confuse this IS2020DRLYH1A revised PCB with the IS2020DRLYH1B model; the "H1B" model was designed sealed and with smaller contacts for Class 1 Div. 2 applications.
Mark VI IS2020DRLYH1A Terminal Board Critical Hardware
While several significant revisions may impact the performance specifications of your IS2020DRLYH1A model PCB, this Mark VI Speedtronic Series product is also altered through its special assembly type. The IS2020DRLYH1A is supported a metal plate assembly, which is intended to be mounted on a wall. This metal backplate assembly asserts the DRLY board's status as a non DIN-rail-mounted PCB. Outside of this assembly, the DRLY board has:
- 12 relay outputs directly wireable to odd-numbered screws on the terminal blocks
- Euro-Block type terminal blocks
- intuitively-numbered receptacles
- two separate screws exist on TB2 for SCOM or chassis ground connection
- no standard with the shield termination strip
- a thorough and completely-layered protective circuit board coating