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22 Sun Fire V100 User’s Guide • December 2001
Serial Adapters
Depending on the type of device you use to connect to the server, you could need to
use either a DB-25 or DB-9 serial adapter.
TABLE 3-3 describes which type to use, and
the following sections describe the crossovers each adapter performs.
The Sun DB-25 Adapter
To connect to a Solaris tip session or to a VT100 terminal, you need to use either the
DB-25 (25-Pin DSUB Male to 8-POS RJ-45 Female) adapter that is supplied by Sun
(part no. 530-2889) with your system, or an alternative adapter that performs the
same pin crossovers. The Sun-supplied DB-25 adapter enables you to connect to any
Sun system. The crossovers it performs are listed in
TABLE 3-4.
TABLE 3-3 Serial Adapters
Terminal Device Adapter
Sun workstation, ASCII terminal, or
terminal server
DB-25
PC or laptop DB-9 (female, supplied by Sun)
Handheld device DB-9 (male, not supplied by Sun)
TABLE 3-4 Pin Crossovers in the Sun DB-25 (25-Pin) Adapter
Serial Port (RJ-45 Connector) Pin 25-Pin Connecter
Pin 1 (RTS) Pin 5 (CTS)
Pin 2 (DTR) Pin 6 (DSR)
Pin 3 (TXD) Pin 3 (RXD)
Pin 4 (Signal Ground) Pin 7 (Signal Ground)
Pin 5 (Signal Ground) Pin 7 (Signal Ground)
Pin 6 (RXD) Pin 2 (TXD)
Pin 7 (DSR) Pin 20 (DTR)
Pin 8 (CTS) Pin 4 (RTS)