31. A different physical layer is used between the tractor and trailer, specified in ISO 11992. 32. Moreover, it goes on to define four physical layers depending on the modulation method used. 33. The original physical layer specified was 100BASE-TX Fast Ethernet. 34. The physical layer for TMDS is current mode logic ( CML ), terminated to 3.3 Volts. 35. Multiple internal and external QPI links are managed by Physical Layer units, referred to as PBox. 36. TSK is a physical layer advancement that significantly improves bandwidth efficiency, noise immunity, and power consumption. 37. At the physical layer ( MIDI cable ), a pair of wires carry the MIDI signal. 38. Conditioners can also provide a physical layer of protection for the hair against physical and environmental damage. 39. The interface visible to the host system passes network layer addresses directly to a physical layer device. 40. We think that the physical layer of the network is just going to reach a commodity status.
