The TRIP provides two or four Token Ring ports for interconnection with IEEE 802.5 and IBM Token Ring media. The TRIP uses the IBM 16/4-Mbps chipset with an imbedded performance enhanced interface driver and 16.7 MHz bit slice processor for high speed processing. The speed on each port is set independently with a software command for either 4 or 16 Mbps.The TRIP and all other interface processors support online insertion and removal (OIR), which allows you to remove and install a TRIP while the system is operating, without shutting down system power.