Bestnet V.35/X.21 Bi-Directional Interface Converter performs bidirectional
conversion of both the physical and electrical specifications of a V.35 device to those of an X.21 device.
Two models are available for connecting a V.35 DTE to an X.21 DCE:
• IC940A-M: Male V.35 (DCE) to Male DB15 (DTE)
• IC940A-F: Female V.35 (DCE) to Male DB15 (DTE)