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Product Number: STUC-4-2B1Q-DIR-2=
This document provides information about installing and replacing the quad-port symmetrical digital subscriber line (SDSL) transmission unit---central office (STU-C) line card. The quad-port STU-C line card (4xSDSL) is a field-replaceable unit (FRU) for the following chassis:
This document includes the following sections:
The 4xSDSL conforms to 2B1Q line encoding. The line card is designed for use in a Direct Connect without a POTS splitter configuration. The Direct Connect without a POTS splitter configuration provisions one modem directly and is physically connected to one specific subscriber line through the main distribution frame (MDF) connections.
The 4xSDSL:
The negotiated bit rate is the lower of the following rates:
Figure 1 shows a close-up of the 4xSDSL faceplate.
The edge connector key, located on the rear of the 4xSDSL, connects the 4xSDSL to the backplane of the chassis. There are two versions of the edge connector key for the 4xSDSL: one has six notches and one has seven notches. You can only use the six-notched edge connector key with the Cisco 6130 chassis, not with the Cisco 6160 chassis. You can use the seven-notched version in both chassis.
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Note The edge connector key with six-notches is no longer available for purchase. However, you may see edge connector keys with six notches in your Cisco 6130 chassis. |
Table 1 describes the 4xSDSL LED indicator functions.
| LED | State | Function |
|---|---|---|
STATUS | Green slow blinking | The self-test is in progress. |
ACTIVE | Green solid | The line card is activated. |
STU-C 1 | Green solid | Modem 1 is trained. |
STU-C 2 | Green solid | Modem 2 is trained. |
STU-C 3 | Green solid | Modem 3 is trained. |
STU-C 4 | Green solid | Modem 4 is trained. |
Figure 3 is a block diagram of the 4xSDSL.
The Cisco 6130 chassis can include up to 32 4xSDSLs for a total of 128 SDSL modems. In a Cisco 6130 chassis, the line cards can be installed in chassis slots 1 through 8, 13 through 28, and 31 through 38.
Figure 4 shows the 4xSDSLs installed in the Cisco 6130 chassis.
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Note The slot configurations for the Cisco 6130 with NI-1 and NI-2 are the same. |
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Note For current intermixing capabilities, refer to the appropriate hardware installation guide. |
The Cisco 6160 chassis can also include up to 32 4xSDSLs for a total of 128 SDSL modems. In a Cisco 6160 chassis, the line cards can be installed in chassis slots 1 through 9 and 12 through 34.
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Note For current intermixing capabilities, refer to the appropriate hardware installation guide. |
This section describes software requirements, and lists parts and tools that are used to install the 4xSDSL.
The software listed in Table 2 is required to provision and manage the 4xSDSL.
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| Software | Required Minimum Cisco Release |
|---|---|
| Cisco 6130 with NI-1 system software requirements | |
Cisco 6130 node software | Release 2.4.1 |
ViewRunner for Windows | Release 2.4.1 |
ViewRunner for HP OpenView | Release 2.4.1 |
| Cisco 6130 with NI-2 system software requirements | |
Cisco IOS | Release 12.1(2)DA |
CDM1 | Release 3.2 |
| Cisco 6160 with NI-2 system software requirements | |
Cisco IOS | Release 12.1(1)DA |
CDM | Release 3.0 |
| 1CDM = Cisco DSL Manager |
To install or replace the 4xSDSL, you need the following parts and tools:
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Note The system has no internal user-serviceable parts. However, you can add or remove a 4xSDSL without removing power from the system (hot swapping). |
This section describes the following:
Before working on the equipment, be aware of standard safety practices and the hazards involved in working with electrical circuitry to prevent accidents. Adhere to the following cautions and warnings for safe and hazard-free installation.
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Note To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information for the Cisco 6100 Series System document. |
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Tips In the following warnings, the terms cover panel and safety cover refer to the chassis front cover. |
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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. Line cards are subject to ESD damage whenever they are removed from the chassis. |
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Caution Installing the line cards in the chassis with the power leads reversed can damage the line cards. |
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Caution If the line cards are installed when you apply power to the system, you could damage the line cards and the chassis. |
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Warning Use copper conductors only. |
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Warning A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. |
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Warning Never install telephone wiring during an electrical storm. |
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Warning Do not reach into a vacant slot or chassis while you install or remove a line card or a fan. Exposed circuitry could constitute an energy hazard. |
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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. |
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Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. |
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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. |
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Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
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Warning Use caution when installing or modifying telephone lines. |
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Warning Metal objects heat up when connected to power and ground, and can cause serious burns. |
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Warning Secure all power cabling when installing this unit to avoid disturbing field-wiring connections. |
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Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
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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. |
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Warning The safety cover is an integral part of the product. Do not operate the unit without the safety cover installed. Operating the unit without the cover in place will invalidate the safety approvals and pose a risk of fire and electrical hazards. |
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Warning Connect the unit only to DC power source that complies with the Safety Extra-Low Voltage (SELV) requirements in IEC 60950 based safety standards. |
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Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. |
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Warning Care must be given to connecting units to the supply circuit so that wiring is not overloaded. |
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Warning Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. |
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Warning Do not use a telephone to report a gas leak in the vicinity of the leak. |
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Warning Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning. |
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Warning Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. |
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Warning This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions. |
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Warning Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement, or near a swimming pool. |
The 4xSDSL supports hot swapping. Hot swapping allows you to remove, replace, and rearrange the line cards without disconnecting the system power. When the system detects that a line card is added or removed, it automatically runs diagnostic and discovery routines, and acknowledges the presence or absence of the line card.
If you remove and replace a
If an unprovisioned line card is installed for the first time, the system identifies it as present but unprovisioned. Instructions for provisioning the line card are found in the appropriate software guide for your chassis.
The following are examples of recommended line card installation and replacement practices:
Any line card that is only partially connected to the backplane can disrupt system operation.
The following sections describe how to remove, install or replace a 4xSDSL.
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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. Line cards are subject to ESD damage whenever they are removed from the chassis. |
Complete the following steps to remove a 4xSDSL from the chassis:
Step 2 Use a flat-head screwdriver to move the locking tab from the locked to the unlocked position. Be sure to turn the locking tab so that it does not overlap the 4XSDSL as shown in Figure 5.
Step 3 Lift up the ejector tab. This action disconnects the line card from the backplane.
Step 4 Carefully slide the line card out of the slot.
Either replace the line card that you remove, or insert a blank faceplate in the empty slot. See the "Installing or Replacing an 4xSDSL" section for 4xSDSL installation instructions. For blank faceplate installation instructions, refer to the appropriate hardware installation guide for your chassis.
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Note Blank faceplates should occupy any empty slots in the chassis. |
Complete the following steps to install the 4xSDSL in the chassis:
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Note It is important that you complete each step before moving on to the next step. |
Step 2 Hold the 4xSDSL vertically, with the line card's faceplate toward you and the connectors facing the chassis slot.
Step 3 Align the upper and lower edges of the 4xSDSL with the upper and lower guides in the chassis slot.
Step 4 Lift up on the ejector tab and gently apply pressure to the bottom of the faceplate while pushing the line card into the slot.
Figure 6 shows the line card installation for a Cisco 6130 chassis. The installation procedures will be the same for the other chassis.
Step 5 Push on the faceplate of each line card to fully seat the line card.
Step 6 Press down on the ejector tab to secure the line card and connect it to the backplane.
Step 7 Use a flat-head screwdriver to turn the locking tab so that it overlaps the 4xSDSL to prevent inadvertent dislodging. Figure 7 shows how to position the locking tab.
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Note It is not necessary to lock the 4xSDSLs in the Cisco 6130 chassis. |
Step 8 Verify that the STATUS LED is solid green after the brief self-test. If the STATUS LED is not green after the self-test, refer to the appropriate hardware installation guide for your chassis for troubleshooting procedures.
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Note If you are installing the line card for the first time, refer to the provisioning procedures in the appropriate software guide for your chassis. |
The 4xSDSL supports up to 1168 kbps upstream and downstream data rates.
Downstream refers to data coming from the network interface card and to the subscriber lines. Upstream refers to data coming from the subscriber lines to the network interface card.
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Note This section applies only to the Cisco 6130 with NI-1 system. |
When the module is reset, the system controller module microprocessor executes boot flash. The boot flash code also contains a boot loader for the serial management bus (SMB). If the current image in the 4xSDSL flash is not the latest image available, the system controller module sends the run-time image for the 4xSDSL over the SMB. The image is loaded and run from Flash.
Table 3 lists 4xSDSL standards and certifications.
| Category | Description |
|---|---|
NEBS Level 3 | Bellcore GR-63-CORE, GR-1089-CORE |
EMI | FCC Part 15, Class A |
Safety | UL 1950, 3rd Edition |
A complete list of all DSL product related documentation is available on the World Wide Web at http://www.cisco.com/univercd/cc/td/doc/product/dsl_prod/index.htm.
The following sections provide sources for obtaining documentation from Cisco Systems.
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.
Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).
Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed docs, or by sending mail to Cisco.
Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.
You can access CCO in the following ways:
You can e-mail questions about using CCO to cco-team@cisco.com.
The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.
To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
To contact by e-mail, use one of the following:
| Language | E-mail Address |
|---|---|
English | tac@cisco.com |
Hanzi (Chinese) | chinese-tac@cisco.com |
Kanji (Japanese) | japan-tac@cisco.com |
Hangul (Korean) | korea-tac@cisco.com |
Spanish | tac@cisco.com |
Thai | thai-tac@cisco.com |
In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
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This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
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