Netra 240 Server Installation Guide

This chapter provides the data cabling instructions for the Netra 240 server, and contains the following sections:

• Rear Cable Connections
• Connecting the Chassis Grounding Cable
• Connecting the Data Cables

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Rear Cable Connections

FIGURE 4-1 displays the location of the rear cable connectors of the DC server, FIGURE 4-2 displays the AC server's rear cable connectors, and TABLE 4-1 describes these connectors.

  FIGURE 4-1 Rear Cable Connectors (DC Server)

  FIGURE 4-2 Rear Cable Connectors (AC Server)

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Connecting the Chassis Grounding Cable

Before installing any other cable, you should first attach the chassis ground cable to the server's chassis grounding studs. Refer to the Chapter 5 for the site requirements for this section.

1. Obtain a chassis grounding cable from your site and two M5 nuts with lock washers from the ship kit.

2. Go to the back of the server and locate the two chassis grounding studs (see FIGURE 4-3).

3. Position and align the chassis grounding cable against the two grounding studs at the rear of the chassis.

  FIGURE 4-3 Location of Chassis Grounding Studs

4. Tighten the two M5 nuts to secure the grounding cable to the two studs.

5. Secure the other end of the grounding cable to the earth ground in the building.

You can secure the grounding cable to a proper grounding point on the rack, as long as the rack is properly grounded to the earth ground in the building.

Caution - An electrical hazard is present if energized units are not properly grounded.

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Connecting the Data Cables

This section provides information about the rear panel cable connections.

Gigabit Ethernet Ports

The Netra 240 server has four autonegotiating 10/100/1000BASE-T Gigabit Ethernet system domain ports. All four Ethernet ports use a standard RJ-45 connector, the transfer rates for which are given in TABLE 4-2. FIGURE 4-4 shows the pin numbering of the ports, and TABLE 4-3 describes the pin signals.

  FIGURE 4-4 Gigabit Ethernet Port Pin Numbering

Network Management Port

The server has one 10BASE-T Ethernet management domain interface, labelled NET MGT. For information on configuring this port for managing the server with ALOM, see the Sun Advanced Lights Out Manager User Guide for the Netra 240 Server
(817-3174).

Caution - If you are planning to use the network management (NET MGT) port, you must use a shielded Ethernet cable to maintain your server's NEBS compliance. The cable's shield must be grounded at both ends.

  FIGURE 4-5 Network Management Port Pin Numbering

Serial Ports

The server has two serial ports, labeled SERIAL MGT and 10101. TABLE 4-5 lists the default serial connection settings for both serial ports.

Serial Management Port

The serial management connector (labeled SERIAL MGT) is an RJ-45 connector that can be accessed from the back panel. This port is the default connection to the system, and you should use this port only for server management.

Caution - You must use a shielded Ethernet cable to maintain your server's NEBS compliance. The cable's shield must be grounded at both ends.

FIGURE 4-6 shows the pin numbering of the serial management port, and TABLE 4-6 describes the pin signals.

  FIGURE 4-6 Serial Management Port Pin Numbering

If you need to connect to the SERIAL MGT port using a cable with either a DB-9 or a DB-25 connector, use a supplied adapter to perform the crossovers given for each connector. The supplied RJ-45 to DB-9 and RJ-45 to DB-25 adapters are wired as described in TABLE 4-7 and TABLE 4-8.

RJ-45 to DB-9 Adapter Crossovers

RJ-45 to DB-25 Adapter Crossovers

Serial Port (10101)

The port labeled 10101 accepts a DB-9 connector. Use this port for general purpose serial data transfers. FIGURE 4-7 shows the pin numbering of the serial port, and TABLE 4-9 describes the pin signals.

  FIGURE 4-7 Serial Port (10101) Pin Numbering

Alarm Port

The alarm port on the alarm rear transition card uses a standard DB-15 male connector. In a telecommunications environment, use this port to connect to the central office alarming system. FIGURE 4-8 shows the pin numbering of the alarm port, and TABLE 4-10 describes the pin signals.

  FIGURE 4-8 Alarm Port Pin Numbering

USB Ports

The server has two USB ports for attaching supported USB 1.1-compliant devices. FIGURE 4-9 shows the pin numbering of the USB ports, and TABLE 4-11 describes the pin signals.

  FIGURE 4-9 USB Ports Pin Numbering

SCSI Port

The SCSI port is a multimode Ultra 160SCSI interface. To operate at Ultra 160SCSI speeds, the part must be in Low-Voltage Differential (LVD) mode. If a single-ended device is connected to the server, it automatically switches to single-ended mode. FIGURE 4-10 shows the pin numbering of the SCSI port, and TABLE 4-12 describes the pin signals.

  FIGURE 4-10 SCSI Port Pin Numbering

^{1 (TableFootnote) The ALOM software sets the ALARM0 (critical) relay and the associated (critical) LED for the following conditions:
When the system is in Standby mode.
When the server is powered on and the operating system has not booted or has failed.}

Netra 240 Server Installation Guide

817-2698-12

Copyright © 2004, Sun Microsystems, Inc. All rights reserved.