C H A P T E R  6

Cabling the System

This chapter gives instructions for connecting cables to the CompactPCI cards. It also gives instructions for assembling and connecting the DC input power cable. It is divided into the following sections:


Installing the Cable Management Brackets

The purple cable management brackets for the chassis are located in the Netra CT server ship kit. The cable management brackets are used to keep the various cables connected to the rear of the chassis bundled together. The Netra CT chassis comes with four cable management brackets.

FIGURE 6-1 shows where the brackets should be installed for the front-access and rear-access models.

  FIGURE 6-1 Cable Management Brackets

Figure showing where the cable managment brackets should be installed on the front-access or rear-access chassis.

1. Align the notches at on the sides of the bracket to the chassis holes.

FIGURE 6-1 shows where the brackets should be installed at the rear of the chassis.

2. Push the bracket straight into the chassis holes until it engages with the chassis.

If necessary, push down slightly on the top notches to get them to engage with the holes in the chassis.

3. Repeat Step 1 and Step 2 until all four cable management brackets are installed.

  FIGURE 6-2 Installing the Cable Management Brackets

Figure showing how to install the cable management brackets onto the chassis.


Connecting Cables to the CompactPCI Cards

The instructions for cabling your Netra CT server vary depending on the model that you have.

Cabling for the Front-Access Model

The cabling connections that you must make differ depending on the cards that you have installed in your server:


procedure icon  To Connect Cables to the CPU Card

1. Locate the host CPU card.

In the Netra CT 810 server, the host CPU card will be installed in slot 1. In the Netra CT 410 server, the host CPU card will be installed in slot 3. Refer to FIGURE 6-3.

  FIGURE 6-3 Host CPU Card Locations

Figure showing the location of the host CPU card in the Netra CT 810 server (slot 1) and the Netra CT 410 server (slot 3).

2. Make the necessary cable connections to the host CPU card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

There are two ports on the CPU card: the COM (TTY A) port and the Ethernet A port. However, depending on the model and type of server you have, you may have to use the TTY A and Ethernet A ports on the CPU front or rear transition cards instead. See TABLE 6-1 and TABLE 6-2for information for your server model.

TABLE 6-1 Ethernet A Port

Server Model

Front-Access

Rear-Access

Netra CT 810 server

N/A

Use the Ethernet A port on the CPU rear transition card. See To Connect Cables to the CPU Rear Transition Card.

Netra CT 410 server

Use the Ethernet A port on the host CPU card. See Ethernet A Port.

Use the Ethernet A port on the CPU rear transition card. See To Connect Cables to the CPU Rear Transition Card.


 

TABLE 6-2 TTY A Port

Server Model

Front-Access

Rear-Access

Netra CT 810 server

N/A

Use the TTY A port on the CPU rear transition card. See To Connect Cables to the CPU Rear Transition Card.

Netra CT 410 server

Use the COM port on the host CPU card. See TTY A Port.

Use the TTY A port on the CPU rear transition card. See To Connect Cables to the CPU Rear Transition Card.


FIGURE 6-4 shows the connectors on the CPU card for the Netra CT 810 server and Netra CT 410 server.

  FIGURE 6-4 Connectors on the Host CPU Card

Figure showing the location of the ports on the host CPU card. From top-to-bottom: the Ethernet A port and the TTY A port.

The following sections give the pinouts for each connector on the host CPU card:

Ethernet A Port

The twisted pair Ethernet connector is an R-J45 connector. The controller auto-negotiates to either 10BASE-T or 100 BASE-T.

  FIGURE 6-5 RJ-45 Ethernet Connector Diagram

Figure showing the Ethernet connector.

 

TABLE 6-3 Ethernet Connector Pinouts, CPU Card (J2301)

Pin No.

Description

1

TXD+

2

TXD-

3

RXD+

4

4T_D3P

5

4T_D3P

6

RXD-

7

4T_D4P

8

4T_D4P


TTY A Port

This port is connected logically to serial port A. It is intended to be used only for serial output to a terminal.



caution icon

Caution - Serial port A is also connected through the rear cPCI connectors. No mechanism is provided to disable simultaneous input from the front panel and the rear cPCI connectors. Attempts to input data from both ports will place the board in an unknown state.



  FIGURE 6-6 CPU Card Front Panel TTY A Diagram

Figure showing the TTY A connector.

TABLE 6-4 shows the TTY A connector pinouts.

 

TABLE 6-4 TTY A Connector Pinouts

Pin

Signal Name

 

Pin

Signal Name

1

FP_SER_A_DTR

 

5

FP_SER_A_RXD

2

FP_SER_A_CTS

 

6

FP_SER_A_RTS

3

FP_SER_A_TXD

 

7

FP_SER_A_DCD

4

FP_SER_A_GND

 

8

Shield GND



procedure icon  To Connect Cables to the CPU Front Transition Card

1. Locate the host CPU front transition card.

FIGURE 6-7 shows the location of the host CPU front transition card in a Netra CT 410 server.

  FIGURE 6-7 Host CPU Front Transition Card Location in a Netra CT 410 Server

Figure showing the location of the host CPU front transition card in the Netra CT 410 server (left of power supply unit).

2. Make the necessary cable connections to the host CPU front transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

FIGURE 6-8 shows the connectors on the host CPU front transition card for the Netra CT 410 server. Note that the TTY A port is located on the host CPU card itself (COM port) for the Netra CT 410 server.

  FIGURE 6-8 Connectors on the Host CPU Front Transition Card (Netra CT 410 Server)

Figure showing the ports on the host CPU front transition card for the Netra CT 410 server. From top-to-bottom: the SCSI port, parallel, Ethernet B, then TTY B.

CPU Front Transition Card Connector Pinouts, Netra CT 410 Server

The following sections give the pinouts for each connector on the CPU front transition card for the Netra CT 410 server:

SCSI (VHDC)

The SCSI port on the CPU FTC for the Netra CT 410 server is a 68-pin CHAMP very high-density connector (VHDC). A VHDC-to-SCSI 3 cable is available through Sun, if necessary (part number 530-2453-xx, X3832A).

 

TABLE 6-5 SCSI Port Pinouts, CPU FTC for the Netra CT 410 Server

Pin No.

Signal

Pin No.

Signal

Pin No.

Signal

1

GND

24

GND

47

DATA 7

2

PRES_L

25

GND

48

PL_L

3

GND

26

GND

49

PRES_L

4

GND

27

GND

50

GND

5

GND

28

GND

51

TERM PWR

6

GND

29

GND

52

TERM PWR

7

GND

30

GND

53

GND

8

GND

31

GND

54

GND

9

GND

32

GND

55

ATN_L

10

GND

33

GND

56

GND

11

GND

34

GND

57

BSY_L

12

GND

35

DATA 12

58

ACK_L

13

GND

36

DATA 13

59

RST_L

14

GND

37

DATA 14

60

MSG_L

15

GND

38

DATA 15

61

DEL_L

16

GND

39

PH_L

62

CD_L

17

TERM PWR

40

DATA 0

63

REQ_L

18

TERM PWR

41

DATA 1

64

IO_L

19

GND

42

DATA 2

65

DATA 8

20

GND

43

DATA 3

66

DATA 9

21

GND

44

DATA 4

67

DATA 10

22

GND

45

DATA 5

68

DATA 11

23

GND

46

DATA 6

 

 


Parallel Port

The parallel port on the CPU FTC for the Netra CT 410 server is an AMPLIMITE SLIMLINE female receptacle.

  FIGURE 6-9 Parallel Connector

Figure showing the parallel connector.

 

TABLE 6-6 Parallel Port Pinouts, CPU FTC for the Netra CT 410 Server

Pin No.

Signal

Pin No.

Signal

1

STB

14

AFD

2

PD0

15

ERR

3

PD1

16

INIT

4

PD2

17

SLIN

5

PD3

18

DGND

6

PD4

19

DGND

7

PD5

20

DGND

8

PD6

21

DGND

9

PD7

22

DGND

10

ACK

23

DGND

11

BUSY

24

DGND

12

PE

25

DGND

13

SLCT

26

DGND


Ethernet B Port

The Ethernet B port on the CPU FTC for the Netra CT 410 server is an RJ-45 connector for 10/100.

  FIGURE 6-10 RJ-45 Ethernet B Connector Diagram

Figure showing the Ethernet B connector.

 

TABLE 6-7 Ethernet B Connector Pinouts, CPU FTC for the Netra CT 410 Server

Pin No.

Description

1

TXD+

2

TXD-

3

RXD+

4

Not used

5

Not used

6

RXD-

7

Not used

8

Not used


TTY B

The TTY B port on the CPU FTC for the Netra CT 410 server is a DB-9 male connector.

  FIGURE 6-11 TTY B Connector

Figure showing the TTY B connector.

 

TABLE 6-8 TTY B Port Pinouts, CPU FTC for the Netra CT 410 Server

Pin No.

Signal Name

1

DCD

2

RXD

3

TXD

4

DTR

5

GND

6

DSR

7

RTS

8

CTS

9

RI



procedure icon  To Connect Cables to the Alarm Card (Front-Access Models Only)



Note - If you have a rear-access model server, do not connect any cables to the alarm card at the front of the server; all cables should be connected to the alarm rear transition card for a rear-access model server. Go to To Connect Cables to the Alarm Rear Transition Card (Rear-Access Models Only) for those instructions.



1. Locate the alarm card for the Netra CT server.

FIGURE 6-12 shows the slot available for the single-wide 6U alarm card in a Netra CT 810 server or a diskless Netra CT 410 server, and FIGURE 6-13 shows the slot available for the double-wide 3U alarm card in a diskfull Netra CT 410 server.

  FIGURE 6-12 Supported Locations for a Single-Wide 6U Alarm Card

Figure showing the location of the single-wide 6U alarm card in the Netra CT 810 server (slot 8) and the diskless Netra CT 410 server (slot 1).

  FIGURE 6-13 Location of Double-Wide 3U Alarm Card

Figure showing the location of the double-wide 3U alarm card in the diskfull Netra CT 410 server (slots 1 and 2).

2. Make the necessary cable connections to the alarm card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

FIGURE 6-14 shows the connectors for the single-wide 6U alarm card installed in a Netra CT 810 server, FIGURE 6-15 shows the connectors for the single-wide 6U alarm card installed in a diskless Netra CT 410 server, and FIGURE 6-16 shows the connectors for the double-wide 3U alarm card installed in a diskfull Netra CT 410 server.

  FIGURE 6-14 Plugging in Cables in Alarm Card in Netra CT 810 Server

Figure showing the ports on the single-wide 6U alarm card. From top-to-bottom: the alarm port, Ethernet 1, Ethernet 2, COM 2, then COM 1.

  FIGURE 6-15 Plugging in Cables in Alarm Card in Diskless Netra CT 410 Server

Figure showing the ports on the single-wide 6U alarm card. From top-to-bottom: the alarm port, Ethernet 1, Ethernet 2, COM 2, then COM 1.

  FIGURE 6-16 Connectors on the Alarm Card in Diskfull Netra CT 410 Server

Figure showing the ports on the double-wide 3U alarm card. From top left-to-bottom right: Ethernet 1, Ethernet 2, COM 2, COM 1, then the alarm port.

The following sections give the pinouts for the connectors on both the single-wide 6U alarm card and the double-wide 3U alarm card:

Alarm Port

The alarm port on the alarm cards uses a standard male DB-15 connector.

  FIGURE 6-17 Alarm Port

Figure showing the alarm connector.

 

TABLE 6-9 Alarm Port Pinouts

Pin No.

Signal

Pin No.

Signal

Pin No.

Signal

1

RESET0 +

6

ALARM0_NC

11

ALARM2_NO

2

RESET0 -

7

ALARM0_COM

12

ALARM2_NC

3

RESET1 +

8

ALARM1_NO

13

ALARM2_COM

4

RESET1 -

9

ALARM1_NC

14

ALARM3_NO

5

ALARM0_NO

10

ALARM1_COM

15

ALARM3_COM


Ethernet Ports 1 and 2

Ethernet ports 1 and 2 on the alarm cards use standard RJ-45 connectors. Ethernet port 1 is a 10 Mbps Ethernet port, and Ethernet port 2 is a 10/100 Mbps Ethernet port.

  FIGURE 6-18 RJ-45 Ethernet Connector Diagram

Figure showing the Ethernet 1 and 2 connectors.

 

TABLE 6-10 Ethernet Ports 1 and 2 Pinouts

Pin No.

Description

Pin No.

Description

1

TX+

5

Not used

2

TX-

6

RX-

3

RX+

7

Not used

4

Not used

8

Not used


COM Ports 1 and 2

COM ports 1 and 2 on the alarm cards use standard RJ-45 connectors.

  FIGURE 6-19 RJ-45 Ethernet Connector Diagram

Figure showing the COM 1 and 2 connectors.

 

TABLE 6-11 COM Port 1 Pinouts

Pin No.

Description

Pin No.

Description

1

RTS1

5

DCD1

2

DTR1

6

RXD1

3

TXD1

7

DSR1

4

GND

8

CTS1


 

TABLE 6-12 COM Port 2 Pinouts

Pin No.

Description

Pin No.

Description

1

RTS2

5

DCD2

2

DTR2

6

RXD2

3

TXD2

7

DSR2

4

GND

8

CTS2



procedure icon  To Connect Cables to the Front-Access Satellite CPU or I/O Cards

1. Locate the satellite CPU or I/O card.

FIGURE 5-2 shows the possible locations for the satellite CPU or I/O cards in the Netra CT 810 server and FIGURE 5-3 shows the possible locations for the satellite CPU or I/O cards in the Netra CT 410 server.

2. Make the necessary cable connections to the cards.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

Refer to the documentation that you received with the satellite CPU or I/O cards for more information.

Cabling for the Rear-Access Model


procedure icon  To Connect Cables to the CPU Rear Transition Card

1. Go to the rear of the chassis and locate the CPU rear transition card.

FIGURE 6-20 shows the location of the CPU rear transition card in the Netra CT 810 server, and FIGURE 6-21 shows the location of the CPU rear transition card in the Netra CT 410 server.

  FIGURE 6-20 CPU Rear Transition Card (CPU RTC) in a Netra CT 810 Server (Top View)

Figure showing the location of the host CPU rear transition card in the Netra CT 810 server (slot 1 in the rear).

  FIGURE 6-21 CPU Rear Transition Card (CPU RTC) in a Netra CT 410 Server (Top View)

Figure showing the location of the host CPU rear transition card in the Netra CT 410 server (slot 3 in the rear).

2. Make the necessary cable connections to the CPU rear transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

FIGURE 6-22 shows the connectors on the CPU rear transition card. The CPU rear transition card is the same for both the Netra CT 810 server and the Netra CT 410 server; only the location in the rear card cage differs.

  FIGURE 6-22 Connectors on the CPU Rear Transition Card

Figure showing the connectors on the host CPU rear transition card. From top-to-bottom: the SCSI port, TTY A and B ports, Ethernet A and B ports, then the PIM connector.

The following sections give the pinouts for the connectors on the CPU rear transition card:

SCSI (VHDC)

The SCSI port on the CPU RTC is a 68-pin CHAMP very high-density connector (VHDC). A VHDC-to-SCSI 3 cable is available through Sun, if necessary (part number 530-2453-xx, X3832A).

TABLE 6-13 SCSI Port Pinouts, CPU RTC

Pin No.

Signal

 

Pin No.

Signal

 

Pin No.

Signal

1

GND

 

24

GND

 

47

DATA 7

2

PRES_L

 

25

GND

 

48

PL_L

3

GND

 

26

GND

 

49

PRES_L

4

GND

 

27

GND

 

50

GND

5

GND

 

28

GND

 

51

TERM PWR

6

GND

 

29

GND

 

52

TERM PWR

7

GND

 

30

GND

 

53

GND

8

GND

 

31

GND

 

54

GND

9

GND

 

32

GND

 

55

ATN_L

10

GND

 

33

GND

 

56

GND

11

GND

 

34

GND

 

57

BSY_L

12

GND

 

35

DATA 12

 

58

ACK_L

13

GND

 

36

DATA 13

 

59

RST_L

14

GND

 

37

DATA 14

 

60

MSG_L

15

GND

 

38

DATA 15

 

61

DEL_L

16

GND

 

39

PH_L

 

62

CD_L

17

TERM PWR

 

40

DATA 0

 

63

REQ_L

18

TERM PWR

 

41

DATA 1

 

64

IO_L

19

GND

 

42

DATA 2

 

65

DATA 8

20

GND

 

43

DATA 3

 

66

DATA 9

21

GND

 

44

DATA 4

 

67

DATA 10

22

GND

 

45

DATA 5

 

68

DATA 11

23

GND

 

46

DATA 6

 

 

 


TTY A and B Ports

The TTY A and B ports are stacked mini 9-pin connectors. The signal interface of the connector is as follows:

TTY A of Dual Connector

 

TTY B of Dual Connector

Pin

Signal

 

Pin

Signal

P1A

DCDA

 

P1B

DCDB

P2A

RXDA

 

P2B

RXDB

P3A

TXDA

 

P3B

TXDB

P4A

DTRA

 

P4B

DTRB

P5A

DGNDA

 

P5B

DGNDB

P6A

DSRA

 

P6B

DSRB

P7A

RTSA

 

P7B

RTSB

P8A

CTSA

 

P8B

CTSB

P9A

RIA

 

P9B

RIB




Note - The two TTY ports require the use of specific adapter cables. Use the Serial Cable Adapter, MDSM-9F to DB9M, (6 inch 9 wires), P/N C-CEL-10110-10. The manufacturer is Computer Cable Makers Inc. and can be ordered directly through them.



Ethernet A and B Ports

The Ethernet A and B ports on the CPU RTC are RJ-45 connectors for 10/100.

  FIGURE 6-23 RJ-45 Ethernet Connector Diagram

Figure Ethernet A and B ports.

 

TABLE 6-14 Ethernet A and B Connector Pinouts, CPU RTC

Pin No.

Description

1

TXD+

2

TXD-

3

RXD+

4

Not used

5

Not used

6

RXD-

7

Not used

8

Not used


PIM Card Interface

The host CPU rear transition card supports a PMC I/O module (PIM). A PIM is generally located on a transition card to enable rear I/O from the CompactPCI bus chassis. Custom PIMs provide additional I/Os that do not fit on the standard transition card rear panel. (For more information on PIM slot mechanics, electrical and logical information, see VITA 36 - PMC I/O Module Standard available http://www.vita.com and the IEEE P1386 Standard). The single-sized PIM measures 2.92 inches (74 mm) wide and 2.72 inches (69 mm) deep.

The PIM card must be mounted on the host CPU rear transition card before the rear transition card is inserted in a Netra CT server.



caution icon

Caution - A PIM card must be used with its matching PMC. Any other combination could lead to damage of the PIM or PMC.




procedure icon  To Connect Cables to the Alarm Rear Transition Card (Rear-Access Models Only)

1. Go to the rear of the chassis and locate the alarm rear transition card (RTC).

FIGURE 6-24 shows the slot available for the alarm rear transition card in a Netra CT 810 server and FIGURE 6-25 shows the slot available for the alarm rear transition card in a Netra CT 410 server.

  FIGURE 6-24 Supported Location for the Alarm Rear Transition Card in a Netra CT 810 Server (Top View)

Figure showing the location of the alarm rear transition card in the Netra CT 810 server (slot 8 in the rear).

  FIGURE 6-25 Supported Location for the Alarm Rear Transition Card in a Netra CT 410 Server (Top View)

Figure showing the location of the alarm rear transition card in the Netra CT 410 server (slot 1 in the rear).

2. Make the necessary cable connections to the alarm rear transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

FIGURE 6-26 shows the connectors on the alarm rear transition card.

  FIGURE 6-26 Connectors on the Alarm Rear Transition Card

Figure showing the ports on the alarm rear transition card. From top-to-bottom: Ethernet 1, COM 2, COM 1, the alarm port, then Ethernet 2.

The following sections give the pinouts for the connectors on the alarm rear transition card:

Ethernet Ports 1 and 2

Ethernet ports 1 and 2 on the alarm rear transition card use standard RJ-45 connectors. Ethernet port 1 is a 10Mbps Ethernet port, and Ethernet port 2 is a 10/100 Mbps Ethernet port.

  FIGURE 6-27 RJ-45 Ethernet Connector Diagram

Figure showing the Ethernet 1 and 2 connectors.

 

TABLE 6-15 Ethernet Ports 1 and 2 Pinouts

Pin No.

Description

Pin No.

Description

1

TX+

5

Not used

2

TX-

6

RX-

3

RX+

7

Not used

4

Not used

8

Not used


COM Ports 1 and 2

COM ports 1 and 2 on the alarm rear transition card use standard DB-9 male connectors.

  FIGURE 6-28 COM Ports 1 and 2

Figure showing the COM 1 and 2 connectors.

 

TABLE 6-16 COM Ports 1 and 2 Connector Pinouts, Alarm Rear Transition Card

Pin No.

Description

1

DCD

2

RXD

3

TXD

4

DTR

5

GND

6

DSR

7

RTS

8

CTS

9

RI


Alarm Port

The alarm port on the alarm rear transition card uses a standard male DB-15 connector.

  FIGURE 6-29 Alarm Port

Figure showing the alarm connector.

 

TABLE 6-17 Alarm Port Pinouts

Pin No.

Signal

Pin No.

Signal

Pin No.

Signal

1

RESET0 +

6

ALARM0_NC

11

ALARM2_NO

2

RESET0 -

7

ALARM0_COM

12

ALARM2_NC

3

RESET1 +

8

ALARM1_NO

13

ALARM2_COM

4

RESET1 -

9

ALARM1_NC

14

ALARM3_NO

5

ALARM0_NO

10

ALARM1_COM

15

ALARM3_COM



procedure icon  To Connect Cables to the Rear-Access Satellite CPU or I/O Cards

1. Locate the satellite CPU or I/O card.

FIGURE 5-2 shows the possible locations for the satellite CPU or I/O cards in the Netra CT 810 server and FIGURE 5-3 shows the possible locations for the satellite CPU or I/O cards in the Netra CT 410 server.

2. Make the necessary cable connections to the rear-access I/O cards.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb.).

For information on connectors on satellite CPU or I/O rear transition cards, refer to the documentation that you received with those cards.


Connecting the Power Cables

All of the Netra CT servers installed in a chassis will either be DC-powered or AC-powered. You cannot have a mixture of DC- and AC-powered servers in the same chassis.

Assembling and Connecting the DC Input Power Cable



caution icon

Caution - Verify that your site meets the source site requirements given in Power Source Requirements before proceeding with these instructions.




procedure icon  To Assemble the DC Input Power Cable



Note - If you have already assembled the DC input power cables, skip to Connecting the DC Input Power Cable to the Server.



1. Identify the parts that you will use to assemble the DC input power cable (FIGURE 6-30).

The following DC connection parts are provided in this kit so that you can assemble one or more DC power input cables. These cables are used to connect the -48V DC input source(s) to the power supply units in your:

  FIGURE 6-30 DC Connection Parts

Figure showing the DC input plug, cage clamp operating lever, and strain relief housing.

2. Turn off power from the DC power source through the circuit breakers.



caution icon

Caution - Do not proceed with these instructions until you have turned off the power from the DC power source through the circuit breakers.



3. Get a DC input plug from the ship kit.

4. Locate the three wires coming from the DC power source that will be used in the connection to your unit:

5. Strip 5/16 inches (8 mm) of insulation from each of the wires coming from the DC power source.

Do not strip more than 5/16 inches (8 mm) from each wire. Doing so will leave uninsulated wire exposed from the DC connector after the assembly is complete.

  FIGURE 6-31 Stripping the Insulation From the Wire

Figure showing the amount of insulation to strip from the wire (5/16 inches).

6. Insert the tip of the cage clamp operating lever into the rectangular hole directly above the hole in the DC input plug where you want to insert the first wire and press down on the cage clamp operating lever.

This opens the cage clamp for this section of the DC input plug.

  FIGURE 6-32 Opening the DC Input Plug Cage Clamp Using the Cage Clamp Operating Lever

Figure showing how to open the DC input plug cage clamp using the cage clamp operating lever.

You can also open the cage clamp by inserting a small slotted screwdriver into the rectangular hole directly above the hole in the DC input plug where you want to insert the first wire and pressing down on the screwdriver.

  FIGURE 6-33 Opening the Cage Clamp Using a Screwdriver

Figure showing how to open the cage clamp using a screwdriver.

7. Feed the exposed section of the appropriate wire into that hole in the DC input plug.

FIGURE 6-34 shows which wires should be inserted into each hole in the DC input plug.

  FIGURE 6-34 Assembling the DC Input Power Cable

Figure showing how to assemble the DC input power cable.

8. Repeat Step 6 and Step 7 for the other two wires to complete the assembly of the DC input power cable.

9. Repeat Step 4 through Step 8 to create as many DC input power cables as you need for your unit.

You will need one DC input power cable for every power supply that you have in the Netra CT server chassis.

If you need to remove a wire from the DC input plug, insert the cage clamp operating lever or a small screwdriver into the slot directly above the wire and press down (FIGURE 6-32 and FIGURE 6-33), then pull the wire from the DC input plug.


procedure icon  To Install the Strain Relief Housings

1. Take the DC input plug and insert the bottom portion of the strain relief housing into the notch on the DC input plug until it snaps into place.

Make sure the strain relief housing snaps into place on the DC input plug; you will not be able to complete the assembly correctly if the strain relief housing is not snapped into place.

  FIGURE 6-35 Inserting the Bottom Portion of the Strain Relief Housing

Figure showing how to insert the bottom portion of the strain relief housing.

2. Route the three wires coming from the DC power source through the opening at the end of the bottom portion of the strain relief housing.

  FIGURE 6-36 Routing the Wires Out of the Bottom Portion of the Strain Relief Housing

Figure showing how to route the wires out of the bottom portion of the strain relief housing.

3. Get the tie wrap and insert it into the bottom portion of the strain relief housing.

  FIGURE 6-37 Securing the Wires to the Strain Relief Housing

Figure showing how to secure the wires to the strain relief housing.

4. Loop the tie wrap over the wires and back out of the strain relief housing and tighten the tie wrap to secure the wires to the strain relief housing (FIGURE 6-37).

5. Lower the top portion of the strain relief housing so that the three prongs on the top portion insert into the openings in the DC input plug, and push the top and bottom portions of the strain relief housing together until they snap into place.

  FIGURE 6-38 Assembling the Strain Relief Housing

Figure showing how to assemble the strain relief housing.

Connecting the DC Input Power Cable to the Server



caution icon

Caution - An energy hazard is present when energized units are not properly earthed.



The instructions for connecting the power cable to your Netra CT server vary depending on the model that you have.


procedure icon  To Connect the DC Power Cable to the Front-Access Model

1. Go to the front of the chassis and locate the DC connectors.

  FIGURE 6-39 DC Connector Locations, Front-Access Model

Figure showing the location of the DC connectors for the front-access model of the Netra CT chassis.

2. Connect the DC input power cables to the DC connectors.

  FIGURE 6-40 Connecting the DC Input Power Cable to the DC Connectors

Figure showing how to connect the DC input power cable to the DC connectors.

3. Turn on the circuit breakers to provide power to the servers.

If you want to disconnect the DC input power cable from the DC connector at some point in the future, turn the circuit breakers off, then squeeze the two tabs on the sides of the DC input power cable and gently disconnect the DC input power cable from the DC power supply.



caution icon

Caution - Do not attempt to disconnect the DC input power cable from the DC connector until you have turned off the power from the DC power source through the circuit breakers.



  FIGURE 6-41 Disconnecting the DC Input Power Cable From the DC Connector

Figure showing how to disconnect the DC input power cable from the DC connectors.

procedure icon  To Connect the DC Power Cable to the Rear-Access Model

1. Go to the rear of the chassis and locate the DC connectors.

  FIGURE 6-42 Locating the DC Connectors

Figure showing the location of the DC connectors at the rear of the chassis.

2. Connect the DC input power cables to the DC connectors.

FIGURE 6-40 shows how the DC input power cable is connected to the DC connectors.

3. Turn on the circuit breakers to provide power to the server.

If you want to disconnect the DC input power cable from the DC connector at some point in the future, turn the circuit breakers off, then squeeze the two tabs on the sides of the DC input power cable and gently disconnect the DC input power cable from the DC power supply (FIGURE 6-41).

Connecting the AC Power Cables

The two AC power supply units in each Netra CT 810 server allow for power redundancy. If one power supply unit fails, then the system will continue to operate using the remaining power supply unit. In order to ensure true AC line input redundancy for the Netra CT 810 server, you should connect each AC power cable to a different AC power source. You can also connect an uninterruptible power supply (UPS) between each AC power source and the Netra CT chassis to increase the availability of the system.



caution icon

Caution - Ensure that the connection of multiple units to the supply circuit does not overload the supply overcurrent protection. Refer to the Netra CT server nameplate electrical ratings when determining the correct branch circuit rating for your installation.





Note - The Netra CT server uses nominal input voltages from 100 VAC to 240 VAC. Sun products are designed to work with power systems having a grounded neutral conductor. To reduce the risk of electrical shock, do not plug Sun products into another type of power source. Contact your facilities manager or a qualified electrician if you are unsure what type of power is supplied to your building.



1. Ensure that the power supply that you are connecting the cable to is in the off or unlocked position.

2. Plug one end of each AC power cable into the AC wall outlets.

3. Plug the other end of the AC power cables into the AC power connectors at the rear of the chassis.

See FIGURE 6-43 for the location of the AC connectors at the rear of the Netra CT chassis. Plug each AC power cable to a different AC power source if you want AC line input power redundancy.

Ensure that all methods of disconnecting the power remain accessible after installation.

  FIGURE 6-43 AC Connectors on a Netra CT Chassis

Figure showing the location of the AC connectors at the rear of the chassis.