WS4 Technical Overview
Customer Display/Mag Card Reader Port (COM3)
Figure 2-24 shows a detailed diagram of the multiplexer, summarized from Sheets
18, 19, and 20 of the AB28-I Schematic.
Figure 2-24: AB28-I System Board COM3 Mux
Workstation 4 and 4 LX Field Service Guide
2-41