I/O relay interface module

An I/O relay interface module for mounting a plurality of relays which are adapted to be connected between a central controller and individual external I/O devices, said interface module comprising:

• a housing;
• a plurality of relay sockets provided in said housing for detachably receiving respective ones of said relays;
• a terminal section on said housing, said terminal section including wire terminals internally connected to said relays through said sockets and adapted for wiring connection of said relays to corresponding ones of said external I/O devices;
• an I/O connector provided on said housing for connection of said relays to said central controller such that the individual relays can receive or transmit from and to said central controller signals actuating the associated I/O devices or indicating the operations of the individual I/O devices;
• and
• an expansion I/O connector provided on said housing for connection with one or more additional relays to be connected to additional I/O devices, said expansion I/O connector internally connected to said I/O connector such that said additional relays are interconnected to said central controller and can receive or transmit from and to said central controller signals actuating the additional I/O devices or indicating the operations of said additional I/O devices wherein said housing is formed with a recess in which said sockets are received in side-by-side relation, said recess having opposed side walls with vertical grooves which are spaced along the length of said side wall and are formed with hooks, said vertical grooves adapted to receive end portions of a spring holder which extends over a radiator to be placed over the top of said relay, said hooks adapted to be engaged in corresponding holes in said end portions of said spring holder to secure said radiator on said relay.

An I/O relay interface module for mounting a plurality of relays which are adapted to be connected between a central controller and individual external I/O devices, said interface module comprising:

• a housing;
• a plurality of relay sockets provided in said housing for detachably receiving respective ones of said relays;
• a terminal section on said housing, said terminal section including wire terminals internally connected to said relays through said sockets and adapted for wiring connection of said relays to corresponding ones of said external I/O devices;
• an I/O connector provide don said housing for connection of said relays to said central controller such that the individual relays can receive or transmit from and to said central controller signals actuating the associated I/O devices or indicating the operations of the individual I/O devices;
• and
• an expansion I/O connector provided on said housing for connection with one or more additional relays to be connected to additional I/O devices, said expansion I/O connector internally connected to said I/O connector such that said additional relays are interconnected to said central controller and can receive or transmit from and to said central controller signals actuating the additional I/O devices or indicating the operations of said additional I/O devices wherein said socket has a pair of opposed end walls between which the corresponding relay is received, said side walls having in their outer surface respective notches adapted for engagement with end portions of a spring holder, said spring holder extending over a radiator placed on the relay so as to secure said radiator on the top of said relay.

An I/O relay interface module for mounting a plurality of relays which are adapted to be connected between a central controller and individual external I/O devices, said interface module comprising:

• a housing;
• a plurality of relay sockets provided in said housing for detachably receiving respective ones of said relays;
• a terminal section on said housing, said terminal section including wire terminals internally connected to said relays through said sockets and adapted for wiring connection of said relays to corresponding one s of said external I/O devices;
• an I/O connector provided on said housing for connection of said relays to said central controller such that the individual relays can receive or transmit from and to said central controller signals actuating the associated I/O devices or indicating the operations of the individual I/O devices;
• and
• an expansion I/O connector provided on said housing for connection with one or more additional relays to be connected to additional I/O devices, said expansion I/O connector internally connected to said I/O connector such that said additional relays are interconnected to said central controller and can receive or transmit from and to said central controller signals actuating the additional I/O devices or indicating the operations of said additional I/O devices wherein said housing has a channel extending along one dimension thereof for detachable connection to a mount rail having outwardly extending opposed flanges, said housing including a slider slidable in a direction transverse to said channel between a lock position in which said slider has its forward edge extending inwardly into said channel for engagement with one of said flanges and an unlock position in which said slider has its forward edge retracted form said channel allowing said one flange to move into and out of said channel, said slider being spring biased into said lock position from said unlock position, said slider being movable outwardly past said unlock position further into a release position where it is free from said spring bias so as to be retained thereat.

An interface module for mounting a plurality of I/O devices which are adapted to be connected between individual I/O devices, said interface module comprising:

• a housing
• a plurality of sockets provide din said housing for detachably receiving respective ones of said devices;
• a terminal section on said housing, said terminal section including wire terminals internally connected to said devices through said sockets and adapted for wiring connection of said devices to corresponding other I/O devices;
• an I/O connector provide don said housing for connection of said devices such that the individual I/O devices can receive or transmit between associated I/O devices or indicate the operations of the individual I/O devices;
• wherein said housing has a channel extending along one dimension thereof for detachable connection to a mount rail having outwardly extending opposed flanges, said housing including a slider slidable in a direction transverse to said channel between a lock position in which said slider has its forward edge extending inwardly into said channel for engagement with one of said flanges and an unlock position in which said slider has its forward edge retracted from said channel allowing said one flange to move into and out of said channel, said slider being spring biased into said lock position from said unlock position, said slider being movable outwardly past said unlock position further into a release position where it is free form said spring bias so as to be retained thereat.