CCNA Portable Command Guide

Figure 4-3 shows the DB-60 end of a serial cable that connects to a 2500 series router.

Figure 4-4 shows the newer smart serial end of a serial cable that connects to a smart serial port on your router.

Figure 4-5 shows examples of the male data terminal equipment (DTE) and the female data communications equipment (DCE) ends that are on the other side of a serial or smart serial cable.

Laptops released in the past few years come equipped with USB ports, not serial ports. For these newer laptops, you need a USB-to-serial connector, as illustrated in Figure 4-6.

Note:

CCNA focuses on V.35 cables for back-to-back connections between routers.