This terminal block is then only connected to the back in the MCP. Basic and helpful with no re-termination needed and no time wasted. It can be configured as either a crack glass or re-settable unit by just transforming from just one aspect to another. The MCP2A/R470FF/01 includes an LED https://www.firesense.co.uk/type/conventional-fire-system/conventional-manual-call-points/