3Com 3C8S5007 - SuperStack II PathBuilder S500 Switch User Manual page 91

Flex-WAN Serial Connectors and Serial Cables 91
To connect the switch to a DCE, such as a modem, use a straight-through
Flex-WAN DTE cable. The DTE cable has a DTE connector on the end that
connects to the modem (see Figure 30).
Figure 30 Connecting the Switch to a DCE Using a DTE Cable
PathBuilder switch
DCE
DTE
DTE
connector
Modem
Flex-WAN DTE
straight-through cable
Flex-WAN cables can be purchased from 3Com. Table 17 lists each
Flex-WAN cable and part number. Cable pinouts are provided in the
following sections.