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Cisco MGX 8950 Installation Manual
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Cisco MGX 8950 Installation Manual

Cisco MGX 8950 Installation Manual

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Download this manual See also: Configuration Manual
Installing a Cisco MGX 8950
This chapter provides procedures for installing a Cisco MGX 8950 switch in a rack or in a
Cisco-supplied cabinet.
Due to the weight of the switch, we recommend that a mechanical lift be used to install the
Note
Cisco MGX 8950 switch in a rack.
Before you begin the installation procedures, read the entire chapter for important information and safety
Caution
warnings.
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Warning
This unit is intended for installation in restricted access areas. A restricted access area is where
access can only be gained by service personnel through the use of a special tool, lock and key, or
other means of security, and is controlled by the authority responsible for the location.
Before installing and cabling the equipment, be aware of standard safety practices and the
Note
hazards involved in working with electrical circuitry to prevent accidents. See the
Requirements" section on page 2-1
hazard-free installation.
To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance
and Safety Information for the Cisco MGX 8830, MGX 8850 (PXM1E and PXM45), and MGX 8950
Switches document.

Installation Checklist

When you install a Cisco MGX 8950 system, be sure that you follow the installation procedures in the
proper sequence.
Detailed installation instructions are located in the sections following
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
for cautions and warnings that are necessary to ensure a safe and
Table 3-1
is a checklist of the installation steps in the order in which they should occur.
C H A P T E R
Table
3-1.
Cisco MGX 8950 Hardware Installation Guide
3
"Safety
3-1

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Summary of Contents for Cisco MGX 8950

  • Page 1: Installation Checklist

    Safety Information for the Cisco MGX 8830, MGX 8850 (PXM1E and PXM45), and MGX 8950 Switches document. Installation Checklist When you install a Cisco MGX 8950 system, be sure that you follow the installation procedures in the proper sequence. Table 3-1 is a checklist of the installation steps in the order in which they should occur.
  • Page 2 Table 3-1. If you are using a lift to mount the Cisco MGX 8950 switch in a rack, you do not need to remove the modules, cards, and hardware components. Follow the installation procedures in the “Rack Mounted System (with Lift)” column of Table 3-1.
  • Page 3 Chapter 3 Installing a Cisco MGX 8950 Installation Checklist Table 3-1 Installation Checklist—Cisco MGX 8950 System (continued) Rack Mounted System (without Check Steps Lift) Rack Mounted System (with Lift) Cisco Cabinet System Step 5 Install the AC Power Supply Install the AC Power Supply Connect the DC PEM to the •...
  • Page 4 Chapter 3 Installing a Cisco MGX 8950 Installation Checklist Table 3-1 Installation Checklist—Cisco MGX 8950 System (continued) Rack Mounted System (without Check Steps Lift) Rack Mounted System (with Lift) Cisco Cabinet System Step 9 Install the Upper Fan Tray, Install the Upper Fan Tray, Connect the External Clock, •...

  • Page 5: Installation Procedures

    • Install the Cable Management Assembly, page 3-33 • Connect the Fan Tray Power Cables to the Cisco MGX 8950 Switch, page 3-33 Connect the AC Power Supply Tray to the Cisco MGX 8950 Switch, page 3-35 • Connect the DC PEM to the Cisco MGX 8950 Switch, page 3-39 •...
  • Page 6 The slots in the stability plate use up to 5/8-inch anchor bolts. When moving a Cisco-supplied cabinet, do not push the cabinet at its sides. Instead, grip its front or Caution back edges.
  • Page 7 18.0 in., 45.72 cm 45.72 cm Use four 3/8 x 1 inch anchoring bolts (user-provided) to attach the stability plate to the floor. Step 2 Cisco MGX 8950 Hardware Installation Guide Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 8 Chapter 3 Installing a Cisco MGX 8950 Installation Procedures Roll the Cisco cabinet over the stability plate as shown in Figure 3-2. Step 3 Figure 3-2 Installing a Cisco Cabinet over the Stability Plate 3/8 x 1 in. bolts (4)
  • Page 9 Ground the Frame Bonding Ground Connection for a Cisco-Supplied Rack A Cisco-supplied rack has two pairs of grounding studs located at the top and bottom of the rack. The rack comes with the hardware needed to secure a ground conductor to the grounding studs. The grounding studs measure 1/4 inch by 20 threads per inch.
  • Page 10 Frame bonding connection Place the connector that terminates the grounding conductor closed-loop ring or two-hole compression Step 2 fitting onto the studs. Cisco MGX 8950 Hardware Installation Guide 3-10 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 11 Use a wrench to tighten a nut onto the threaded studs. Step 4 Measure Rack Space Before you install the Cisco MGX 8950 switch and its related components, calculate the total rack space required to install your system. See Table 2-2 on page 2-13 for the Cisco MGX 8950 dimensions and rack units (RUs) required.
  • Page 12 17.72 inches. Each component has flanges that serve as the front mounting brackets in a 19-inch rack. For a 23-inch rack, Cisco Systems offers special adapter brackets that can be purchased separately.
  • Page 13 • At approximately midpoint, attach brackets to the components, and then attach the components to • mounting rails. For 23-inch racks, order the special adapter brackets from Cisco. The mounting rail locations shown in Figure 3-5 comply with racks that require mounting on front or middle rear, and rear mounting rails.
  • Page 14 Make sure that mounting the equipment does not create a hazardous condition due to uneven Caution mechanical loading. The equipment rack should be securely supported. Cisco MGX 8950 Hardware Installation Guide 3-14 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 15 —If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Install the AC Power Supply Tray(s) AC Power Supplies are optional on the Cisco MGX 8950 switch. If your system uses only DC power, Note proceed to the “Install the Air Intake Plenum”...
  • Page 16 Loosen the captive screw at the bottom front of the power supply that you want to remove, as shown in Step 5 Figure 3-8. Cisco MGX 8950 Hardware Installation Guide 3-16 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 17 AC power supply present in each AC power supply tray. Step 7 Install the AC Power Tray For optimum performance, Cisco recommends installing dual AC power systems for full redundancy. Note Perform the following steps to install the AC power trays:...
  • Page 18 Complete the following steps to install the air intake plenum: If a component requires more than two screws to install it in the rack or cabinet, install the two bottom screws first. Cisco MGX 8950 Hardware Installation Guide 3-18 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 19 Use four mounting screws and a Phillips-head screwdriver to bolt the lower fan tray in the rack. See Step 4 Figure 3-4 for the correct placement of the lower fan tray. Cisco MGX 8950 Hardware Installation Guide 3-19 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 20 Install the Cisco MGX 8950 Switch—Without a Mechanical Lift Because of the risk of damage to the cards, modules, and backplane, Cisco strongly recommends the use of a mechanical lift. Using a lift greatly simplifies the installation and reduces the risk of damage. See “Install the Cisco MGX 8950 Switch—with a Mechanical Lift”...
  • Page 21 Connect a grounding strap to the ESD grounding jack or to the equipment rack. Step 1 Place the Cisco MGX 8950 switch on a flat and stable surface (for example, the floor). Step 2 Open the front door on the switch, as necessary.
  • Page 22 An APS assembly consists of two optical AXSM back cards, an active card and a standby card, which Caution are connected using an APS connector (Cisco Part Number MGX-8950-APS-CON). A rocking motion during connector mating can bend or damage the APS connector pins.
  • Page 23 Install the Switch in the Rack Even with the cards removed, the weight and bulk of the card cage mandates that three or more people install it. Two installers can support and maneuver the Cisco MGX 8950 while a third secures it to the rack.
  • Page 24 “Rack-Mounting” section on page 2-20. Attach one front-mounting bracket to each side of the Cisco MGX 8950 switch before installing the unit Step 1 in a rack. The rear mounting brackets cannot be installed before putting a unit in a 23-inch rack.
  • Page 25 Step 2 to install a second back card on the APS connector. Figure 3-13 shows two Step 3 back cards installed in the APS connector. Cisco MGX 8950 Hardware Installation Guide 3-25 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 26 Tighten the captive screws on the back cards with the appropriate screwdriver. If you have difficulty inserting the captive screws, verify that the screws are aligned with the holes. Cisco MGX 8950 Hardware Installation Guide 3-26 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 27 Complete the following steps to reinstall a back card into the Cisco MGX 8950 switch: Refer to the notes you made when you recorded the location of each card to ensure that the cards are Step 1 installed in the correct slots.
  • Page 28 Complete the following steps to reinstall a front card into the Cisco MGX 8950 switch: Refer to the notes you made when you recorded the location of each card to ensure that the cards are Step 1 installed in the correct slots.
  • Page 29 “Install the Upper Fan Tray” section on page 3-31. The Cisco MGX 8950 switch is shipped with all the ordered cards and modules installed and tested at the factory. Cisco recommends that you install the Cisco MGX 8950 switch using a mechanical lift. This switch can be installed easily by a single person if a mechanical lift is used.
  • Page 30 Install the Switch in a 19-Inch Rack Complete the following steps to install the Cisco MGX 8950 in a 19-inch rack: Attach one mid-mounting bracket to each side of the Cisco MGX 8950 switch before installing the unit Step 1 in a rack.
  • Page 31 Phillips-head screwdriver to attach the mid-mounting brackets to the upper fan tray if you are installing the system in a 19-inch rack. Position the upper fan tray, which occupies 1 RU of space, directly above the Cisco MGX 8950 switch. Step 3...
  • Page 32 -48 V DC RT N -48 V -48 V -48 V DC -48 V DC RT N -48 V -48 V DC Primary PEM Cisco MGX 8950 Hardware Installation Guide 3-32 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 33 Lower cable management assembly Connect the Fan Tray Power Cables to the Cisco MGX 8950 Switch The fan trays receive power from the backplane through a fan power cable. See Figure 3-17 for an illustration of the fan power cable and Figure 3-18 for an illustration of the fan power connections.
  • Page 34 3-18, and push the connector in to secure it. Tighten the captive screws on the connector. Do not use a power tool. Step 6 Cisco MGX 8950 Hardware Installation Guide 3-34 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 35 AC power supply. If you are using AC power, complete the following steps to connect the AC power supply tray to the Cisco MGX 8950 switch. If you are using DC power, proceed to the “Connect DC Power to the Switch”...
  • Page 36 PSA 2 PS Tray 1 J2 J2 on primary PS Tray Cisco highly recommends that you install and use a redundant AC power supply. Note Perform the following procedure to install the interconnect connections for an AC-Powered Cisco MGX 8950 switch with a redundant AC power supply:...
  • Page 37 Step 16 Step 17 Insert the other end of the cable labeled “PS Tray 1 J2” into the primary AC power tray receptacle labeled “J2.” Cisco MGX 8950 Hardware Installation Guide 3-37 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 38 (pwr distribution 1) (pwr distribution 2) PSA1 PSB1 PSB2 PSA2 black black white white (PSA) AC power tray #1 (PSB) AC power tray #2 Cisco MGX 8950 Hardware Installation Guide 3-38 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 39 AC IN DC OUT AC IN AC IN Connect the DC PEM to the Cisco MGX 8950 Switch A system power cable carries –48 VDC current from a DC-PEM to the backplane (see Figure 3-23). The DC power interconnect cables from each PEM must be connected to the backplane. If the cables are...
  • Page 40 PSA 2 PEM 1 J2 J2 on primary PEM Cisco highly recommends that you install and use a redundant DC power supply. Note Perform the following procedure to install the interconnect connections for an DC-Powered Cisco MGX 8950 switch with a redundant DC power supply: Caution Do NOT use power tools for this procedure.
  • Page 41 Route cable outside the cable management system brackets, then insert the other end of the cable labeled Step 15 “PEM 1 J2” into the primary (lower) PEM receptacle labeled “J2.” Cisco MGX 8950 Hardware Installation Guide 3-41 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 42 Figure 3-23 DC Interconnect Cable Connections (Detailed) MGX 8950 PSA1 PSB1 PSB2 PSA2 black black white white (PSB) DC PEM ASM #1 (PSA) DC PEM ASM #2 Cisco MGX 8950 Hardware Installation Guide 3-42 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 43 Figure 3-25 shows cables routed through the upper cable management panel. Cisco MGX 8950 Hardware Installation Guide 3-43 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...

  • Page 44: Connect The Console Port

    Figure 3-26 shows the hardware required for a CP connection. Figure 3-26 Workstation Connection to the Console Port PXM-UI-S3 back card UI-S3 Serial cable Workstation Cisco MGX 8950 Hardware Installation Guide 3-44 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 45 For further information about server management and configuration set up, refer to the appropriate software configuration guide for your switch and your release. Connect Power to the Cisco MGX 8950 Switch The section provides the following installation procedures to connect the power: Connect AC Power to the Switch, page 3-46 •...
  • Page 46 Connect AC Power to the Switch To connect AC power to the Cisco MGX 8950 switch, use AC power cords with the following types of AC wall plugs: 30A NEMA L620, 3-prong plug (North America), shown in Figure 3-28.
  • Page 47 Step 7 If you are using a secondary (redundant) power supply, repeat Step 1 through Step 7 for the other Step 8 AC power cable. Cisco MGX 8950 Hardware Installation Guide 3-47 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 48 Figure 3-31 AC Power Connections (with redundant power supply) DC OUT AC IN AC IN DC OUT AC IN AC IN To outlet To outlet Cisco MGX 8950 Hardware Installation Guide 3-48 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 49 Connect DC Power to the Switch Complete the following steps to connect DC power to the switch: Connect the Cisco MGX 8950 switch only to a –48 VDC source that complies with the Safety Extra Low Note Voltage (SELV) requirements in IEC 60950/EN 60950.
  • Page 50 Connect the External Clock Using an RJ-45 Connection, page 3-51 • Connect the External Clock Using a Wire-Wrap Adapter, page 3-51 • This step is optional. Note Cisco MGX 8950 Hardware Installation Guide 3-50 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 51 Connect the External Clock Using an RJ-45 Connection If external equipment or a local digital central office provides synchronization to the Cisco MGX 8950 switch, the external clock source is connected to the PXM user interface back card (PXM-UI-S3). The user interface back card has as two external clock inputs (EXT CLK1 and EXT CLK2) that can support either T1 or E1 external clock input, but not both.
  • Page 52 Use a wire-wrapping tool to wrap the shield drain wire to the ground pin (pin 3 or 6) of the adapter. The shield drain wire is the bare wire shown in Figure 3-37. Figure 3-37 Wires Wire-Wrapped to Pins Cisco MGX 8950 Hardware Installation Guide 3-52 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 53 This step is optional. Note Dry contact relay closures are available for forwarding Cisco MGX 8950 switch alarms to an alarm system. Separate visual and audible alarm outputs are available for critical, major, and minor alarm outputs and the outputs are provided through the use of a DB15 connector on the PXM user interface back card (PXM-UI-S3).
  • Page 54 Connect the LAN 1 port on the PXM-UI-S3 to a hub or router. This hub or router is connected to a workstation, as shown in Figure 3-39. Cisco MGX 8950 Hardware Installation Guide 3-54 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 55 At this time, verify that your switch either has a front door installed and closed or that each empty slot has a bank faceplate installed to cover it. Cisco MGX 8950 Hardware Installation Guide 3-55 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...
  • Page 56 Chapter 3 Installing a Cisco MGX 8950 Installation Procedures Cisco MGX 8950 Hardware Installation Guide 3-56 Release 3, Part Number 78-14147-02 Rev. A0, November 2002...