User's Manual

4: Installation of EDS4100
EDS User Guide 31
Figure 4-1 Front View of the EDS4100
Figure 4-2 Back View of the EDS4100
Serial Ports
The front of the EDS4100 has four male DB9 serial ports. These ports allow you to connect up to
four standard serial devices:
 All four serial ports support RS-232 devices. See Figure 4-3 for pin assignments.
 Serial ports 1 and 3 also support RS-422 and RS-485 serial devices. See Figure 4-4 for pin
assignments.
 All four serial ports are configured as DTE.