The nominal rate of OTU4 signals is 111,809,973.

The nominal rate of OTU4 signals is precisely 111,809,973.568 kbit/s, which is generally rounded to 112 Gbit/s for practical purposes. This nominal rate corresponds to the standardized high-speed optical transport designed to support extremely high-capacity networks. The rounding simplifies communication and equipment specifications without losing significant accuracy. HCIP-Transmission references this value when discussing OTN signal rates and the design of optical transmission systems to handle next-generation bandwidth demands.