Connection A connection between modules. connection sources The connection source object. ntgString sourcePort The connection source port. ntgInt destinations The connection destination object. ntgString destinationPort The connection destination port. ntgInt rate The rate for the connection. ntgInt map The value mapping for the connection. ntgString none One or many sources for the connection. none none none none One or many source ports for the connection. 0 INF 0 none One or many destinations for the connection. none none none none One or many destination ports for the connection. 0 INF 0 Hertz The frequency of the rate of the connection. 1 INF 4410 none The mapping between source and destination of the connection. none none ntgLinear