Specifications

Functions
98
4.3 Frame switching
RS2-4R
Release 1.0 03/04
U Flow control with a full duplex link
In the example (see Fig. 29) there is a full duplex link between Work-
station 2 and the switch.
Before the send queue of Port 4 overflows, the switch sends a request to
Workstation 2 to include a small break in the sending transmission.
U Flow control with a half duplex link
In the example (see Fig. 29) there is a half duplex link between Work-
station 2 and the switch.
Before the send queue of Port 4 overflows, the switch sends data so that
workstation 2 detects a collision and thus interrupts the transmission.