Table of Contents

4.1 Installing Components
4.2 Installing the Cisco 6130 NI-2 DSLAM with a POTS Splitter

4.2.1 Stabilize the Rack and Measure Rack Space
4.2.2 Install the POTS Splitter
4.2.3 Install the Fan Tray
4.2.4 Install the System I/O Card

4.2.4.1 Mounting the System I/O Card
4.2.4.2 Installing the EMI Cover

4.2.5 Install the Chassis
4.2.6 Ground the Chassis, Fan Tray, and POTS Splitter
4.2.7 DSLAM to POTS Splitter Cable Connections
4.2.8 Attach the Chassis Power Connections

4.2.8.1 Attach Chassis Power Connections for a Dual-Power Feed
4.2.8.2 Attach Chassis Power Connections for a Single-Power Feed

4.2.9 Attach Fan Tray Power Connections

4.2.9.1 Attach Fan Tray Power Connections for a Dual-Power Feed
4.2.9.2 Attach Fan Tray Power Connections for a Single-Power Feed

4.2.10 Connect the Network to the System I/O Card
4.2.11 Connect the Alarm Contacts
4.2.12 Connect the POTS Splitter to the MDF
4.2.13 Pull All Modules Away from the Backplane
4.2.14 Apply Power
4.2.15 Verify Fan Tray Operation
4.2.16 Reseat the Modules
4.2.17 Install the Modules
4.2.18 Install Blank Faceplates in Open Slots
4.2.19 Connect the NI-2 Module to the Network

4.2.19.1 OC-3c NI-2 Module Network Connection
4.2.19.2 OC-3c Network Connection Information
4.2.19.3 Information about the DS3 Network Connection

4.2.20 Close the Chassis Front Door
4.2.21 Install the Rear Door (Optional)

Installing a Cisco 6130 NI-2 DSLAM with a POTS Splitter

Caution Before you start the installation procedures, read the entire chapter for important information and safety warnings.

Warning Only trained personnel should install, replace, or service this equipment.

This chapter provides procedures for installing a Cisco 6130 NI-2 DSLAM in a configuration with a POTS splitter.

For detailed information on the following, refer to the Cisco 6130 DSLAM with NI-2 User Guide:

• Multiplexer chassis and POTS splitter slot assignments

• Chassis, POTS splitter, and fan tray backplane connectors

• Module descriptions (including LEDs)

• Component block diagrams

4.1 Installing Components

A Cisco 6130 NI-2 DSLAM installation with a POTS splitter can include the following components:

• Fan tray---Required to achieve Network Equipment Building Systems (NEBS) compliance when you are using the Cisco 6130 NI-2 DSLAM (chassis).

• Chassis---Up to two chassis are allowed per rack.

• POTS splitter.

installation procedures for the Siecor POTS splitter. This configuration is valid only if there are quad-port DMT-2 ATU-C modules installed in the chassis and DMT POTS modules are installed in the Siecor POTS splitter.

---

For additional compliance and safety information, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.

The quad-port DMT-2 ATU-C modules are installed in the chassis for the Cisco 6130 NI-2 DSLAM; the DMT POTS modules are installed in the POTS splitter.

All unfilled chassis slots must have blank faceplates installed in them to ensure proper system operation.

Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place.

Figure 4-1 shows the components for a POTS splitter configuration when you are using a Cisco 6130 NI-2 DSLAM.

If you are installing more than one chassis with a POTS splitter, install a fan tray under each Cisco 6130 NI-2 DSLAM.

The chassis ships with a front door that must be installed and in place for the system to achieve NEBS compliance (see Figure 4-2). For more information on NEBS requirements, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.

Installation of a rear door is optional. See the "Install the Rear Door (Optional)" section for installation information. Refer to the Cisco 6100 Series Rear Door Configuration Notes for additional product information.

4.2 Installing the Cisco 6130 NI-2 DSLAM with a POTS Splitter

When you install the Cisco 6130 NI-2 DSLAM with a POTS splitter, be sure that you follow the installation procedures in proper sequence. Table 4-1 lists the installation steps in the order in which they should occur. Subsequent subsections describe the installation steps.

Caution Proper ESD protection is required whenever you handle Cisco 6130 NI-2 DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage whenever they are removed from the chassis.

4.2.1 Stabilize the Rack and Measure Rack Space

For the rack to remain stable, you must install your Cisco 6100 series system(s) from the bottom to the top of the rack. Before you install any chassis, determine how much rack space you need. The space required depends on the number of chassis and fan trays you plan to use.

You can install a combination of the following Cisco 6100 series components in a 7-foot rack:

• Fan tray---Required beneath each Cisco 6100 series chassis.

• Chassis---Up to two chassis are allowed per rack.

• POTS splitter---The number of POTS splitters is equal to the total number of chassis per rack.

The Cisco 6130 NI-2 DSLAM fits in a 23-inch wide rack. Allow enough space for wiring. See Table 2-1 for individual rack space requirements. Allow 1 RU of space between the fan tray and the POTS splitter. This space is for the intake plenum and for cabling back to front for the OC-3c NI-2 module.

Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.

If you plan to expand your system to include more chassis in the future, allow space in the rack for additions during the initial installation, keeping in mind the weight distribution and stability of the rack.

4.2.2 Install the POTS Splitter

Use the following steps to install the POTS splitter chassis (PSC) in the equipment rack:

Step 1 Screw four no. 10 mounting screws through the mounting brackets on each side of the ADSL splitter shelf to attach the shelf to an equipment rack.

Step 2 To mount the ADSL splitter shelf flush with the front side of the rack, detach the preinstalled mounting brackets from the shelf housing. Reattach these brackets in the front mounting holes of the housing.

Step 3 Repeat for each POTS splitter as necessary.

See Figure 4-1 for the correct placement of the POTS splitter.

Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back.

4.2.3 Install the Fan Tray

If you are using a Cisco 6130 chassis in this configuration, you must have a fan tray installed directly below the chassis. You must install the fan tray to achieve NEBS compliance.

See Figure 4-1 for the correct placement of the fan tray.

4.2.4 Install the System I/O Card

The system I/O card is shipped with the Cisco 6130 NI-2 DSLAM in a kit that includes the components listed in Table 4-2.

 

Component
Cisco Part Number

Name
Quantity
Subassembly
Kit

 System I/O card
 1
 73-4377-02
 800-07027-01

 EMI fence1
 1
 51-1412-01

 EMI cover
 1
 51-1413-01

 Screws
 12
 48-0688-01

 Standoffs
 12
 50-0767-01

 Safety shield
 1
 700-05598-01

 ESD shield
 1
 700-05732-01

 EMI cover bracket
 1
 700-05842-01



1The EMI fence is attached (soldered) to the system I/O card.

The Cisco 6130 NI-2 DSLAM (chassis) is not shipped with the system I/O card (see Figure 4-4) installed, because the system I/O card is a field-replaceable unit and is packaged in the system I/O card installation kit.

Before you can operate the Cisco 6130 NI-2 DSLAM, you must install the system I/O card. During this initial installation, you mount the system I/O card on the chassis backplane, using the components from the installation kit, which is shipped with the chassis.

Figure 4-4: Installed System I/O Card

• The system I/O card (see Figure 4-4). The system I/O card is shown assembled in Figure 4-4.

• 12 hexagonal standoff screws (see Figure 4-4). The hexagonal standoff screws are shown assembled on the chassis backplane in Figure 4-5.

• 12 backplane screws.

• The ESD shield (see Figure 4-7).

• The EMI cover (see Figure 4-7).

• The EMI fence (see Figure 4-6). The EMI fence is not contained in the installation kit; it is soldered onto the system I/O card printed circuit board.

• The component safety shield (see Figure 4-6).

• The EMI cover bracket (see Figure 4-7).

Figure 4-5: Cisco 6130 NI-2 DSLAM Backplane without System I/O Card

The EMI shield is formed by the EMI fence (see Figure 4-6), which is soldered in place on the system I/O card, and the EMI cover (see Figure 4-6), which is held in place on the EMI fence with a kit screw installed through the EMI cover and into the EMI cover bracket (see Figure 4-7).

The EMI cover bracket is held in place by two kit screws installed in the two underlying standoffs between receptacles P9 and P3. Printed circuit board fuses, relays, and surge protectors are shielded by clear plastic covers held in place by kit screws installed in the standoffs provided. The EMI cover and protective shields must be in place during Cisco 6130 NI-2 DSLAM operation.

The initial installation of the system I/O card is carried out in two procedures. First, the system I/O card and its protective plastic covers are mounted on the chassis backplane. Next the EMI cover bracket, EMI cover, and system I/O card ESD shield are installed.

Figure 4-6: System I/O Card Installation

4.2.4.1 Mounting the System I/O Card

This section tells you how to do the initial installation of the system I/O card on the chassis backplane (see Figure 4-5).

Caution Disconnect chassis power before doing the initial installation of a system I/O card.

Caution Static voltages as low as 30 volts can cause latent damage to circuitry on the system I/O card. Be sure to observe all standard antistatic procedures (for example, wear a grounding strap).

Figure 4-7: EMI Cover Installation

Step 1 Check that a standoff is located at each of the chassis backplane standoff positions (see hexagonal standoffs in Figure 4-5 and Figure 4-6). Install any missing standoffs using those contained in the installation kit as replacements. Also check that all standoffs are tight.

Caution Do not overtighten a standoff. Overtightening may cause the system I/O card printed circuit board to crack.

Step 2 Remove the screw from the right side of the backplane ESD shield and standoff between receptacles J41 and J47 (see Figure 4-5). No standoffs, except the three holding the backplane ESD shield in place, should now have screws in them.

Step 3 Holding the system I/O card vertically with its component side toward you (see Figure 4-6), align its top right mounting hole with the top right standoff (above J48) on the chassis backplane. Ensure that this aligns connectors J3 and J9, on the system I/O card, with receptacles P3 and P9 on the chassis backplane.

Step 4 Carefully press connectors J3 and J9 into backplane receptacles P3 and P9 until the system I/O card is in place and against all its standoffs.

Step 5 Use three kit screws to loosely mount the system I/O card on the three chassis backplane standoffs at the right side of the system I/O card (see Figure 4-6).

Step 6 Holding the safety shield in place at the left side of the system I/O card, loosely install the safety shield and system I/O card. Use three kit screws, inserting them in the three standoffs at the left side of the system I/O card (see Figure 4-4, Figure 4-5, and Figure 4-6).

Step 7 Loosely reinstall the screw removed from the standoff in Step 2 above. The system I/O card should now be situated over the chassis backplane ESD cover (see Figure 4-5).

Step 8 Loosely install a kit mounting screw in the standoff at the upper left hand corner inside the EMI fence (see Figure 4-6 and Figure 4-7).

Step 9 Install a standoff from the installation kit in the standoff between relays K4 and K5 on the system I/O card (see Figure 4-4 and Figure 4-7). Observing the overtighten caution, tighten the installed standoff.

Step 10 Remove the system I/O card ESD shield from the installation kit. Place the ESD shield, on the standoff you installed in Step 9, so that the hole in its top aligns with the hole in the standoff. The top edge of the ESD shield should lie parallel to, and against, the EMI fence (see Figure 4-7).

Step 11 Install a kit screw through the hole in the ESD shield and into the standoff you installed in Step 9 above. Observing the overtighten caution, tighten the screw and check all other screws for tightness.

4.2.4.2 Installing the EMI Cover

The EMI cover (see Figure 4-4 and Figure 4-7) is installed on the chassis backplane after the I/O card is positioned on the chassis backplane. This section tells you how to install the EMI cover on the chassis backplane.

Step 1 Remove the EMI cover bracket (Figure 4-7) from the installation kit. Place the EMI cover bracket over the system I/O card holes between receptacles P3 and P9.

Step 2 Remove two kit screws and install them through the holes in the EMI cover bracket and into the standoffs under the system I/O card. Observing the overtighten caution, tighten the screws.

Step 3 Remove the EMI cover from the installation kit, and mount it on the EMI fence.

Caution Be careful not to bend the tabs on the EMI cover when you install the cover on the EMI fence.

Step 4 After making sure that no EMI cover tabs are outside the EMI fence, install a screw through the EMI cover and into the EMI cover bracket. Observing the overtighten caution, tighten the screws.

Step 5 If required, replace or install the CO alarm wiring at the system I/O card alarm wire-wrap headers. See the "Connect the Alarm Contacts" section for a description of system I/O card alarm wiring.

Step 6 If required, replace or install CO system network trunk and subtending interfaces. See the "Connect the Network to the System I/O Card" section for a description of system network trunk and subtending interface connections.

4.2.5 Install the Chassis

Use the following steps to install the chassis in the rack and connect the fan tray and chassis.

Warning Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with both hands. To prevent injury, keep your back straight and lift with your legs, not your back.

Step 1 Position one chassis above the fan tray. The top of the fan tray should be flush with the bottom of the chassis.

Step 2 Using mounting screws and a Phillips-head screwdriver, bolt the chassis in the rack.

Step 3 Remove the chassis front door.

Step 4 Repeat Steps 1 through 3 for each chassis as necessary.

Step 5 Connect the Cisco 72-1912-01 SCSI cable between SCSI connector J1 on the fan tray and connector J49 on the chassis. You need to do that so the chassis recognizes the fan tray (see Figure 4-8).

4.2.6 Ground the Chassis, Fan Tray, and POTS Splitter

Warning When you are installing the units, the ground connections must always be made first and disconnected last.

Warning This equipment needs to be grounded. Use a green and yellow 14 AWG ground wire to connect the host to earth ground during normal use.

During the system installation, use the following steps to connect the grounding lugs on the chassis, fan tray, and POTS splitter, directly to the rack, and to connect the fan tray and chassis.

Step 1 Remove all paint or oxidation from the rack at the point of the grounding connection.

Step 2 Measure enough wire (14 American Wire Gauge [AWG] or thicker green or green with yellow stripes stranded copper wire) to connect the chassis to the rack. (See Figure 4-9 for grounding wire locations.)

Step 3 Use a wire stripper to remove the insulation from both ends of each wire.

Step 4 Using a 3/16-inch flat-blade screwdriver, loosen the screw on the rack.

Step 5 Hook one end of the copper wire around the screw on the rack in a clockwise direction.

Step 6 Tighten the rack screw over the copper wire.

Step 7 Loosen the compression screw provided on the grounding lug on the chassis. The grounding lugs are located in the upper left corner of each chassis (viewed from the rear).

Step 8 Insert the other end of the copper wire under the compression screw.

Step 9 Tighten the compression screw over the copper wire.

Step 10 Repeat Step 1 through Step 9 for the fan tray and the POTS splitter to ground them.

Step 11 Connect a Cisco 72-1912-01 SCSI cable to SCSI connector J1 on the fan tray and to SCSI connector J49 on the chassis. You need to do this so that the chassis recognizes the fan tray (see Figure 4-8).

The left side of Figure 4-9 shows how to ground the chassis, fan tray, and POTS splitter to the rack.

4.2.7 DSLAM to POTS Splitter Cable Connections

Use one-to-one cables to connect the DSLAM to the POTS splitter for systems with quad-port DMT-2 ATUC-1-4DMT modules. Table 4-3 lists the backplane connectors and the part numbers for Cisco one-to-one cables that connect the DSLAM to the POTS splitter in an installation with a POTS splitter.

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

Table 4-3: Connectors and Part Numbers for One-to-One Cables---Cisco 6130 NI-2 DSLAM to POTS Splitter Connections

Backplane Connector		Cisco Part Number
DSLAM	POTS Splitter	Kit	Subassembly
J39	xDSL 9-32	CAB-61-014 (contains 6 cables)	72-1665-01
J40	xDSL 1-8, 65-72		72-1665-01
J41	xDSL 73-96		72-1665-01
J42	xDSL 33-56		72-1611-01
J43	xDSL 57-64, 121-128		72-1610-01
J44	xDSL 97-120		72-1609-01

Figure 4-10 shows the one-to-one special cable.

Figure 4-11 shows the one-to-one cabling between the Cisco 6130 NI-2 DSLAM and the POTS splitter. Use the cables listed in Table 4-3 to make these connections. Use the one-to-one cable when you are connecting the chassis to the Siecor POTS splitter.

4.2.8 Attach the Chassis Power Connections

Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

Caution To prevent the system from powering up, do not install the fuses at this time. If the fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is wired.

Warning The power supply circuitry for the Cisco DSLAM equipment can constitute an energy hazard. Before you install or replace the equipment, remove all jewelry (including rings, necklaces, and watches). Metal objects can come into contact with exposed power supply wiring or circuitry inside the DSLAM equipment. This could cause the metal objects to heat up and cause serious burns or weld the metal object to the equipment.

Warning This unit has more than one power supply connection; all connections must be removed completely to completely remove power from the unit.

External power is supplied to the system as -48 VDC from the central office (CO) power source or rectifier to the fuse and alarm panel. Power is fed from the fuse and alarm panel to the chassis by a terminal block connector with four dual-power connections (P13) located at the top of the chassis backplane. Figure 4-12 shows the location of the power connections (P13) on the chassis.

4.2.8.1 Attach Chassis Power Connections for a Dual-Power Feed

Use the following steps to attach the chassis power connections (P13) to the fuse and alarm panel for a dual-power feed.

Caution If fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is installed. Do not power up the system while you install and connect the system.

Step 1 Use a socket driver to remove the cover over the chassis power connections.

Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the chassis power input connections to the fuse and alarm panel. See Figure 4-13 for power input connections.

Step 3 Use a wire stripper to remove the casing from both ends of each wire.

Step 4 Using a Phillips-head screwdriver, attach a wire to the -48V_A power input connection on the chassis (P13).

Step 5 Attach the wire to a fuse and alarm panel NEG (negative) DC connector.

Step 6 Using a Phillips-head screwdriver, attach a wire to the -48V_B power input connection on the chassis (P13).

Step 7 Attach the wire to a fuse and alarm panel NEG DC connector. Figure 4-13 shows the chassis power input connections wired to the fuse and alarm panel.

Step 8 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the chassis power return connections to the fuse and alarm panel. See Figure 4-14 for power return connections.

Step 9 Use a wire stripper to remove the casing from both ends of each wire.

Step 10 Using a Phillips-head screwdriver, attach a wire to a -48V power return connection (-48 RTN) on the chassis (P13) (see Figure 4-15).

Step 11 Attach the wire to a fuse and alarm panel POS (positive) RTN connector (see Figure 4-15).

Step 12 Repeat Steps 10 through 14 for the remaining -48V power return connection (-48 RTN).

Figure 4-14 shows the chassis power return connections wired to the fuse and alarm panel for a dual-power feed.

4.2.8.2 Attach Chassis Power Connections for a Single-Power Feed

Use the following steps to attach the chassis power connections (P13) to the fuse and alarm panel for a single-power feed.

Caution If fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is installed. Do not power up the system while you install and connect the system.

Step 1 Use a socket driver to remove the cover over the chassis power connections.

Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to connect each of the chassis power leads to the fuse and alarm panel. (See Figure 4-15.)

Step 3 Use a wire stripper to remove the casing from both ends of each wire.

Step 4 Using a Phillips-head screwdriver, attach a wire to the -48 V_B power input connection on the chassis (P13).

Step 5 Attach the wire to the fuse and alarm panel NEG DC connector.

Step 6 Using a Phillips-head screwdriver, attach a wire to a -48 RTN power return connection on the chassis (P13). (See Figure 4-15.)

Step 7 Attach the wire to the fuse and alarm panel POS RTN connector. (See Figure 4-15.)

Step 8 Using a Phillips-head screwdriver, attach a wire to connect the -48 V_A and -48 V_B power input connections to each other.

Step 9 Using a Phillips-head screwdriver, attach a wire to connect the -48 RTN power return connections to each other.

Figure 4-15 shows the chassis power connections wired to the fuse and alarm panel for a single-power feed.

4.2.9 Attach Fan Tray Power Connections

External power is supplied to the system as -48 VDC from the CO power source or rectifier to the fuse and alarm panel. Power is fed from the fuse and alarm panel to the fan tray by a terminal block connector with four dual-power connections (P1) located at the top of the fan tray backplane. Figure 4-16 shows the location of the power connection (P1) on the fan tray.

4.2.9.1 Attach Fan Tray Power Connections for a Dual-Power Feed

Use the following steps to attach the fan tray power connections to the fuse and alarm panel for a dual-power feed.

Caution If fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is installed. Do not power up the system while you install and connect the system.

Step 1 Use a socket driver to remove the cover over the fan tray power connections.

Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to join each of the fan tray power leads to the fuse and alarm panel. (See Figure 4-17.)

Step 3 Use a wire stripper to remove the casing from both ends of each wire.

Step 4 Using a Phillips-head screwdriver, attach a wire to the -48 VA power input connection on the fan tray (P1).

Step 5 Attach the wire to the fuse and alarm panel NEG DC connector. (See Figure 4-17.)

Step 6 Using a Phillips-head screwdriver, attach a wire to the -48 VB power input connection on the fan tray (P1).

Step 7 Attach the wire to the fuse and alarm panel NEG DC connector. (See Figure 4-17.)

Step 8 Using a Phillips-head screwdriver, attach a wire to a -48 RTN power return connection on the fan tray (P13).

Step 9 Attach the wire to a fuse and alarm panel POS RTN connector.

Step 10 Repeat Steps 8 and 9 for the remaining -48 RTN power return connection.

Figure 4-17 shows the power connections from the fan tray to the fuse and alarm panel for a dual-power feed.

4.2.9.2 Attach Fan Tray Power Connections for a Single-Power Feed

Use the following steps to attach the fan tray power connections to the fuse and alarm panel for a single-power feed.

Caution If fuses are already installed in the fuse and alarm panel, remove them. You can replace the fuses after the system is installed. Do not power up the system while you install and connect the system.

Step 1 Use a socket driver to remove the cover over the fan tray power connections.

Step 2 Measure enough wire (14 to 18 AWG copper solid or stranded wire) to attach each of the fan tray power connections to the fuse and alarm panel. See Figure 4-17 for power connections.

Step 3 Use a wire stripper to remove the casing from both ends of each wire.

Step 4 Using a Phillips-head screwdriver, attach a wire to the -48 VA power input connection on the fan tray (P1).

Step 5 Attach the wire to the fuse and alarm panel NEG DC connector.

Step 6 Using a Phillips-head screwdriver, attach a wire to an RTN power return connection on the fan tray (P1). See Figure 4-18 for correct placement.

Step 7 Attach the wire to the fuse and alarm panel POS RTN connector. See Figure 4-18 for correct placement.

Step 8 Using a Phillips-head screwdriver, attach a wire to link the -48 VA and -48 VB power input connections to each other.

Step 9 Using a Phillips-head screwdriver, attach a wire to link the RTN power return connections to each other.

Figure 4-18 shows the power connections from the fan tray to the fuse and alarm panel for a single-power feed.

4.2.10 Connect the Network to the System I/O Card

The chassis is not shipped with the system I/O card already installed on the rear of the chassis. If the system I/O card is missing from your chassis, perform the installation procedures in "Install the System I/O Card" section.

The system I/O card has six 75-ohm BNC receptacles that provide network trunk and network subtended interfaces for DS3-configured Cisco 6130 NI-2 DSLAMs.

Warning The DS3 ports are not intended to be connected to cables that run outside the building where the DSLAM is installed. For any connections outside the building, the DS3 ports must be connected to a network termination unit (NTU). NTU devices should comply with appropriate national safety standards such as UL 1950, CSA 950, EN 60950, IEC 950, and AS 3260.

In a DS3 subtended network configuration, the system I/O card has two pairs of subtending connectors (see Figure 4-4). It provides

• External clock wire-wrap pins.

• Coaxial connections for DS3 cabling when a DS3 NI-2 module is installed. If no DS3 NI-2 module is present, the coaxial connections are not used. See the "Connect the NI-2 Module to the Network" section for more information on the NI-2 modules.

The system I/O card has one pair of trunk connectors and two pairs of subtend connectors. Table 4-4 lists the connectors and their designations on the system I/O card.

Figure 4-4 shows the system I/O card.

4.2.11 Connect the Alarm Contacts

Five rows of wire-wrap pins are located on the right side of the system I/O module. These pins support the following alarms:

• Visual critical

• Visual major

• Visual minor

• Audible critical

• Audible major

• Audible minor

• Power module alarms

• Remote alarm cutoff

• Reserved (several pins that are reserved for future specification)

Each of the wire-wrap pins is connected to the NI-2 cards that are present in the Cisco 6130 NI-2 chassis; however, only one NI-2 card manages the alarms. The alarm cutoff switch shuts off the audible alarms. Figure 4-19 shows the location of the wire-wrap pins on the system I/O module.

Table 4-5 maps the wire-wrap pins to the alarms supported by the NI-2 card through the Cisco 6130 NI-2 DSLAM backplane.

PIN No.	Header P1	Header P2	Header P3	Header P4	Header P5
Pin 1(left)	AUD1_CRIT2_CO3	AUD_MIN4_CO	VIS5_MAJ_CO	DOOR ALARM	RX_BITS6_TIPA
Pin 2	AUD_CRIT_NO7	AUD_MIN_NO	VIS_MAJ8_NO	Reserved	RX_BITS_RINGA
Pin 3	AUD_CRIT_NC9	AUD_MIN_NC	VIS_MAJ_NC	Reserved	RX_BITS_GND/GND
Pin 4	AUD_MAJ_CO	VIS_CRIT_CO	VIS_MIN_CO	Reserved	RX_BITS_TIPB
Pin 5	AUD_MAJ_NO	VIS_CRIT_NO	VIS_MIN_NO	ACO10_NO	RX_BITS_RINGB
Pin 6 (right)	AUD_MAJ_NC	VIS_CRIT_NC	VIS_MIN_NC	ACO GND11	RX_BITS_GND/GND

1AUD = Audible. 2CRIT = Critical. 3CO = Common. 4MIN = Minimum. 5VIS = Visual. 6RX_BITS = Receive building-integrated timing source. 7NO = Normally open. 8MAJ = Major. 9NC = Normally closed. 10ACO = Alarm cutoff. The alarm cutoff switch is located on the faceplate of the NI-2 card. This switch turns off audible alarms generated by the Cisco 6130 NI-2 system software. 11GND = Ground.

4.2.12 Connect the POTS Splitter to the MDF

Use the following steps to connect the POTS splitter to the CO MDF:

Step 1 Using the cables provided by Cisco (see the "Cable Connections for Subtending" section) or built according to the specifications for a Nortel NT-T100 series cable, connect the xDSL subscriber line connectors (J11 to J14) to the MDF.

See the "Installation with a Siecor POTS Splitter" section for port mapping information.

4.2.13 Pull All Modules Away from the Backplane

If the chassis ships with modules loaded installed, complete the following steps to pull each module away from the chassis backplane connection.

Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis.

Step 1 Lift up on the ejector tab.

Step 2 Carefully slide the module forward and away from the backplane connection.

Repeat this procedure for each module.

4.2.14 Apply Power

With no modules installed in any of the chassis or POTS splitters, apply power to the system by

• Reinserting the fuses in the fuse and alarm panel

• Turning on the breakers in the fuse and alarm panel

Caution If the modules are installed when you apply power to the system, you could damage the modules and the chassis.

The power connections from the chassis to the fuse and alarm panel are wired as shown in Figure 4-14 or Figure 4-15. The power connections from the fan tray to the fuse and alarm panel are wired as shown in Figure 4-17 or Figure 4-18.

Caution Check the polarity of the -48 VDC connections to each chassis by attaching a voltmeter with the minus lead on -48 RTN and the plus lead on -48 V_A. Ensure that the meter reads between -36 VDC and -60 VDC. If your voltmeter shows a positive voltage, the power inputs might be reversed. If the voltmeter shows a negative voltage that is out of the -36 VDC to -60 VDC range, check the power supply for failure or check for a blown fuse in the fuse and alarm panel.

4.2.15 Verify Fan Tray Operation

Verify that the fans are operational by locating the LED on the front of each fan.

Caution It is important that the multiplexer chassis (MC) cooling fans run continuously. The system could suffer thermal damage if the fans stop running for more than 30 minutes.

• If the LED is green, the fan is operational.

• If the LED is not green, the fan is not operational and the fan tray is in alarm mode.

The fans should be operational before you install the modules.

Caution It is important that the chassis cooling fans run continuously. The system could suffer thermal damage if the fans stop running for more than 30 minutes.

Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.

4.2.16 Reseat the Modules

Caution Proper ESD protection is required whenever you handle Cisco DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage whenever they are removed from the chassis.

If the chassis ships with modules installed, reseat the modules to verify the power connection. To reseat the modules, complete the following steps:

Caution Installing the modules in the chassis with the power leads reversed can damage the modules.

Step 1 Lift up on the ejector tab.

Step 2 As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.

Step 3 Push on the faceplate of each module to fully seat the module.

Step 4 After the module is fully seated in the slot, press down on the ejector tab to secure the module.

Step 5 After the brief self-test, verify that the STATUS LED is solid green.

Step 6 Using the same procedure, install the remaining modules.

4.2.17 Install the Modules

Caution Proper ESD protection is required whenever you handle Cisco DSLAM equipment. Installation and maintenance personnel should be properly grounded using ground straps to eliminate the risk of ESD damage to the equipment. Modules are subject to ESD damage whenever they are removed from the chassis.

Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.

Install the Cisco 6130 NI-2 modules and POTS splitter cards in the following order to verify the power connection:

• ATU-C modules

• NI-2 module

• POTS splitter cards

Caution Installing the modules in the chassis with the power leads reversed can damage the modules.

Warning The power supply circuitry for the Cisco DSLAM equipment can constitute an energy hazard. Before you install or replace the equipment, remove all jewelry (including rings, necklaces, and watches). Metal objects can come into contact with exposed power supply wiring or circuitry inside the DSLAM equipment. This could cause the metal objects to heat up and cause serious burns or weld the metal object to the equipment.

Warning Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed circuitry could constitute an energy hazard.

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Note All modules must be fully seated in the chassis. Push on the faceplate of each module to fully seat the module.

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To install the chassis ATU-C and NI-2 modules and the POTS splitter POTS cards, follow these steps in the order shown:

Step 1 To install the quad-port DMT-2 ATU-C modules in the chassis, complete the following:

(a) Vertically align the module edge with the module guides at the top and bottom of slot 1 of the chassis.

(b) Lift up on the ejector tab.

(c) As you lift up the ejector tab and gently apply pressure to the bottom of the faceplate, push the module into the slot.

(d) Push on the faceplate of each module to fully seat the module.

(e) After the module is fully seated in the slot, press down on the ejector tab to secure the module.

(f) After the brief self-test, verify that the STATUS LED is solid green.

(g) Repeat the procedure for each of the remaining ATU-C modules. The ATU-C modules are installed in slots 1 through 8, 13 through 28, and 31 through 38.

Step 2 To install the NI-2 module in the chassis, complete the following:

(a) Inspect the NI-2 module. Verify that the daughterboard is fully seated on the main board.

(b) Verify that slots 10 and 11 of the chassis have no bent pins.

(c) Vertically align the module edge with the module guides at the top and bottom of slot 10 of the chassis.

(d) Lift up on the ejector tabs.

(e) As you lift up the ejector tabs and gently apply pressure to the faceplate, push the module into the slot.

(f) After the module is fully seated in slot 10, press down on the ejector tabs to secure the module.

For additional information on connecting the NI-2 module to the network, see the "Connect the NI-2 Module to the Network" section.

Step 3 To install the POTS splitter cards in the POTS splitter, complete the following:

(a) Open the POTS splitter shelf by pulling down the two latches on the left and right sides of the front door.

(b) With the components of each card facing to the right (insertion/extraction lever of the card facing to the bottom), slide the cards into the card guides on the top and bottom of the housing. Begin installing the cards at the left side of the chassis.

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Note While sliding in the card, ensure that cards are properly guided by the card guides.

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(c) When the card is fully inserted in the housing, use the insertion/extraction lever to push the card into the connector.

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Note Make sure that the bottom part of the insertion/extraction lever is placed in the U-shaped channel at the bottom of the unit.

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(d) With the card fully inserted, engage its top locking lever by pulling the lever down. Engage the bottom locking lever by pushing it up until it locks into place.

4.2.18 Install Blank Faceplates in Open Slots

The blank faceplate installation is similar to the module installation.

4.2.19 Connect the NI-2 Module to the Network

The NI-2 module provides three types of network connections:

• A high-speed OC-3c optical ATM interface supporting single-mode fiber (SMF), intermediate range

• A high-speed OC-3c optical ATM interface supporting multi-mode fiber (MMF), short range

• A DS3 ATM interface

4.2.19.1 OC-3c NI-2 Module Network Connection

Use the following steps to connect the OC-3c NI-2 module to the network using an OC-3c connection.

Warning Class 1 laser product.

Warning Do not stare into the laser beam or view it directly with optical instruments.

Step 1 Verify that the OC-3c NI-2 module is in slot 10 on the chassis.

Step 2 If you are using an OC-3c MMF NI-2 module or an OC-3c SMF NI-2 module, connect the OC-3c NI-2 module transmit and receive cables from the ATM switch through the space (1 RU) between the fan tray and the POTS splitter.

Step 3 Attach the optical fiber to the transmit and receive connectors in the inset on the front panel of the OC-3c NI-2 module. See Figure 4-20 for the location of the OC-3c network interface connection.

The transmit connector is the one closest to the top of the front panel and closer to the faceplate. The receive connector is closest to the bottom of the module and farther from the faceplate. The connector IDs are silkscreened inside the inset.

4.2.19.2 OC-3c Network Connection Information

The reach for the SMF interface is specified as 35 km if you use Siecor 0.20 dB per kilometer, 9-micrometer optical cable. Table 4-6 lists the electro-optical characteristics of the single-mode 155-MB ATM transceiver.

 

Transmitter
Unit
Minimum
Typical
Maximum

 Output power (average)

 dBm
 -15.0
 -11.0
 -8.0

 Center wave length

 nanometer
 1260
 ---
 1360

For single-mode ATM/SONET/SDH transceivers, the receiver minimum optical input power is -31 dBm (average), and the receiver maximum optical input power is -8 dBm (average).

Table 4-7 lists the electro-optical characteristics of the multi-mode OC-3c transceiver.

 

Transmitter
Unit
Minimum
Typical
Maximum

 Output power (average)
 dBm
 -17.0
 -15.0
 -12.0

 Center wave length
 nanometer
 800
 ---
 900

4.2.19.3 Information about the DS3 Network Connection

The DS3 NI-2 module receives its transmit timing from a local oscillator with 20 ppm accuracy. The line build-out defaults to 0 to 225 feet.

To connect the DS3 NI-2 module to the network, verify that the DS3 NI-2 module is installed in slot 10 on the chassis. This ensures that the DS3 NI-2 module connections will be active.

4.2.20 Close the Chassis Front Door

To achieve NEBS compliance, verify that the chassis front door is attached to the chassis and closed (see Figure 4-21). For more information on NEBS requirements, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document.

4.2.21 Install the Rear Door (Optional)

You can order and install an optional rear door for the back of the chassis. The rear door attaches to the back of the chassis and restricts access to the backplane and cable connectors. To keep cables from interfering with the opening of the rear door, the cables that come down from the top of the rack can be tie wrapped to the door-mounting brackets.

The rear door accessory kit contains

• One door-mounting bracket (detached)

• One door-mounting bracket (with the rear door attached)

• Ten tie wraps

• Six standoff screws

Use the following steps to install the rear door:

Step 1 Locate and remove six of the backplane screws currently used to hold the chassis backplane to the chassis. Three screws are located on the right of the chassis, and three are located on the left. See Figure 4-22 for the location of the screws. Keep the backplane screws for use when you install the door-mounting brackets.

Step 3 Facing the rear of the chassis, install the door-mounting bracket on the right side of the chassis. Place the bracket over the standoff screws. Use three of the screws you removed in Step 1 to fasten the door-mounting bracket to the chassis. (See Figure 4-23.)

Step 6 The rear door closes left to right (seen from the rear of the chassis). There are two latches on the rear door (see Figure 4-24). Lift the latches as you close the rear door. After the rear door is in place, release the latches.

Step 7 The two thumbscrews located on the rear door align with two thumbscrew fasteners on the bracket (see Figure 4-25). Tighten the thumbscrews to secure the rear door.

Posted: Mon Mar 6 07:15:52 PST 2000
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