In half-duplex operation of a type B polarential system, the direct current is substantially independent of the line leakage.
13.
In December 1972, Vadic introduced the " VA3400 ", notable for full-duplex operation at 1, 200 bit / s over the phone network.
14.
Some regular office phones offer only half-duplex operation : if one party is talking, the people listening can't respond until the first party finishes.
15.
While many of the marine HF channels are full duplex ( different transmit frequency for ship and ground station ), few ships had the radio & antenna capability for duplex operation.
16.
Collisions are only recognized on UTP when the station is operating in full-duplex operation in this regard is whether or not the transmit and receive pairs are permitted to be used simultaneously.
17.
Some datasets support full-duplex operation, and full-duplex ( 4-wire ) can be used in many circumstances to improve performance by eliminating the turn-around time, at the added expense of 4-wire installation and support.
18.
Some computer-based systems of the 1960s and 1970s required full-duplex facilities, even for half-duplex operation, since their poll-and-response schemes could not tolerate the slight delays in reversing the direction of transmission in a half-duplex line.
19.
The Catalyst 2900 Series XL switches are based on an advanced architecture that offers a three-million packet-per-second forwarding rate and a 1.6-gigabitper second ( Gbps ) forwarding bandwidth to deliver wire-speed performance for up to 16 ports in full-duplex operation.
20.
The Catalyst 2900 Series XL switches are based on an advanced architecture that offers a three-million packet-per-second forwarding rate and a 1 . 6-gigabitper second ( Gbps ) forwarding bandwidth to deliver wire-speed performance for up to 16 ports in full-duplex operation.
