2 using a db-25 adapter for your serial link, Using a db-25 adapter for your serial link – Sun Microsystems Netra 120 User Manual

Page 85

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Chapter 6

Connecting the Cables

6-7

6.3.2

Using a DB-25 Adapter for Your Serial Link

The pinouts are identical for both of the RJ-45 serial ports on the rear panel of your
server. To connect from a VT100 terminal, you need to use either the DB-25 (25-Pin
DSUB male to 8-POS RJ-45 female) adapter supplied by Sun (part number 530-2889)
with your server or an alternative adapter that performs the same pin inter-
connections. The Sun-supplied DB-25 adapter enables you to connect to any Sun
system. The pin inter-connections it performs are listed in

TABLE 6-2

.

Note –

When the Sun Fire V120 and Netra 120 servers are viewed from the rear, pin

1 of the RJ-45 serial port is on the left, and pin 8 is on the right.

FIGURE 6-5

Pins 1 to 8 on the Serial Ports

TABLE 6-2

Pin Inter-connections Performed by the Sun DB-25 (25-pin) Adapter

Serial Port (RJ-45 Connector) Pin

25-pin Connector

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)

8

1

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