Secure network switching.The Model 4421 CAT 5 RJ-45 Interface A/B A/B Airborne
A/B Afterburner (jet engines)
A/B Air Blast
A/B Air Bus
A/B Afterburning Switch is designed for fallback fall·back
a. Something to which one can resort or retreat.
b. A retreat.
2. Computer Science network applications. The switch connects a workstation or device between no other devices or networks with RJ-45 connections. Internal circuitry ensures isolation between the A and B devices/networks, and a front panel button changes the switch position. The unit includes an RS-232 serial port that allows, upon proper authentication (1) Verifying the integrity of a transmitted message. See message integrity, e-mail authentication and MAC.
(2) Verifying the identity of a user logging into a network. , a terminal or computer in terminal mode to determine the unit's status, change the switch position and/or and/or
Used to indicate that either or both of the items connected by it are involved.
Usage Note: And/or is widely used in legal and business writing. lock out front panel switching capability. A modem can also be connected to this port for remote access to the switch.--Electro Standards Laboratories