CCONTROLS USB22-CXB

To overcome the inherent non-real-time response of Windows®, Contemporary Controls released the USB22 Series of USB 2.0 to ARCNET adapters. ARCNET’s determinism has been compromised by a PCMCIA adapter because typical operating systems cannot service the devices in a timely fashion, causing lost or missed messages. The USB22 deep memory buffer holds messages until the OS can service the device — so missed messages are rare — even if operating at 10 Mbps (four times the standard ARCNET data rate of 2.5 Mbps).