Abstract: A system for selectively forming high-speed serial connections between various components of a network device that includes a multiplexing switch coupled a GE slot and to the high speed serial interfaces of a PHY and at least two network devices. The switch can be programmed to connect the serial interfaces of the two network modules to provide a high-speed, low-latency serial link between the two network modules. Alternatively, the serial interface of a network module can be connected to the GE slot to provide a high-speed, low-latency serial link between the network module and the GE slot.

Abstract: A system for selectively forming high-speed serial connections between various components of a network device that includes a multiplexing switch coupled a GE slot and to the high speed serial interfaces of a PHY and at least two network devices. The switch can be programmed to connect the serial interfaces of the two network modules to provide a high-speed, low-latency serial link between the two network modules. Alternatively, the serial interface of a network module can be connected to the GE slot to provide a high-speed, low-latency serial link between the network module and the GE slot.

Abstract: A catheter placement device for use in introducing high frequency jet ventilation gas to the trachea of a patient is provided which includes a catheter, and a catheter introducer having a needle within the catheter and includes an actuating member for moving the needle to an extended position in which the needle tip extends beyond the distal end of the catheter for percutaneously inserting the catheter and needle into the throat of a patient. A spring moves the needle tip to a retracted position within the catheter upon release of the actuating member. The introducer is removable from the catheter so that a source of high frequency ventilation gas can be connected to the catheter. The introducer has a piston which is movable in a bore which communicates with the needle lumen.