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ADC DSX-3 User Manual

Rear cross connect system
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ADCP-80-314
Issue 6
January 2001
DSX-3 (DSX-4H-24)
Rear Cross-Connect System
User Manual
4-40001-2937 Rev B

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  • Page 1 ADCP-80-314 Issue 6 January 2001 DSX-3 (DSX-4H-24) Rear Cross-Connect System User Manual 4-40001-2937 Rev B...

  • Page 2: Copyright

    Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages.

  • Page 3: Table Of Contents

    PHYSICAL DESCRIPTION .............. 1-6 DSX-4H Circuit Modules ............1-9 DSX-4H Chassis.............. 1-10 Fuse Panel ..............1-11 Cable Rings and Troughs ............1-11 Cable Brackets .............. 1-11 Cross-Connect System ............1-11 SYSTEM SPECIFICATIONS ............1-11 Page iii  2001, ADC Telecommunications, Inc.
  • Page 4 PROCEDURE 5: OUT-OF-SERVICE PATCH ............3-8 PROCEDURE 6: OUT-OF-SERVICE TRAFFIC PATTERN CHANGES ..........3-9 SECTION 4 MAINTENANCE GENERAL .................4-1 PREVENTIVE MAINTENANCE ............4-1 CORRECTIVE MAINTENANCE ............4-1 Troubleshooting ...............4-1 Tracer Lamp Replacement ............4-2 Fuse Replacement .............4-2 Circuit Module Replacement ............4-2 Page iv  2001, ADC Telecommunications, Inc.
  • Page 5 SECTION 5 GENERAL INFORMATION WARRANTY/SOFTWARE ............... 5-1 SOFTWARE SERVICE AGREEMENT ............5-1 REPAIR/EXCHANGE POLICY ............5-1 REPAIR CHARGES ..............5-2 REPLACEMENT/SPARE PRODUCTS............5-2 RETURNED MATERIAL ..............5-2 CUSTOMER INFORMATION AND ASSISTANCE ..........5-3 Page v  2001, ADC Telecommunications, Inc.
  • Page 6 ADCP-80-314 • Issue 6 • January 2001 • Preface Page vi  2001, ADC Telecommunications, Inc.

  • Page 7: About This Manual

    ADCP-80-314 • Issue 6 • January 2001 • Preface ABOUT THIS MANUAL This user manual describes ADC’s DSX-3 (DSX-4H-24) Rear Cross-Connect System and its applications in large and small offices, digital loop carriers, and customer premises. The manual also provides all instructions necessary to install, operate, and maintain the system.
  • Page 8 ADCP-80-314 • Issue 6 • January 2001 • Preface 3 AMP BLOWN FUSE FUSE INDICATOR MAXIMUM 50 AMP MAXIMUM TOTAL BUSS AMPERAGE 8666-A DSX-3 (DSX-4H-24) REAR CROSS-CONNECT SYSTEM Page viii  2001, ADC Telecommunications, Inc.

  • Page 10: General

    SYSTEM SPECIFICATIONS ............1-11 1 GENERAL This section describes ADC’s DSX-3 (DSX-4H-24) Rear Cross-Connect System and its applications in large and small offices, digital loop carriers, and customer premises. The system provides for test access, patch, cross-connect, and monitor functions in 75 ohm digital transmission systems operating with a common signal format and bit rate.

  • Page 11: Features And Benefits

    2 FEATURES AND BENEFITS 2.1 Modularity The DSX-3 (DSX-4H-24) Rear Cross-Connect System is modular for easy expansion at the user's site, and may provide any number of bi-directional cross-connects in multiples of 120 (up to 240 equipment terminations) per 7 foot bay. This allows for installation of a minimal system configuration to meet the immediate needs of a site, and then expanding it as necessary by adding individual DSX-4H circuit modules.

  • Page 12: Functional Description

    ADCP-80-314 • Issue 6 • January 2001 • Section 1: Description and Application 3 FUNCTIONAL DESCRIPTION The DSX-3 (DSX-4H-24) Rear Cross-Connect System consists of up to 240 individual DSX-4H circuit modules, two of which are shown schematically in Figure 1-1. Each circuit module accommodates the input and output of one digital equipment unit, and two circuit modules are required for each cross-connect.
  • Page 13 X-IN X-IN X-OUT X-OUT EQPT EQPT LAMP SWITCH –48V X-IN X-OUT =EQUIPMENT IN OUT CONNECTOR = CROSS-CONNECT CONNECTOR = PATCH JACK EQPT = PIN JACK 1267-C Figure 1-2. Typical DSX-3 (DSX-4H-24) Circuit Arrangement Page 1-4  2001, ADC Telecommunications, Inc.

  • Page 14: Applications

    4 APPLICATIONS 4.1 Testing and Fault Isolation Terminating all digital operational and test equipment at the DSX-3 (DSX-4H-24) Rear Cross- Connect greatly reduces the amount of time and skilled personnel required for testing and isolation of troubles. Identification of existing or developing problems is readily accomplished by: •...

  • Page 15: Office Record Keeping

    In addition, red LED tracer lamps allow for easy identification of equipment cross-connected at the cross-connect system. 5 PHYSICAL DESCRIPTION Front and rear views of a typical fully configured DSX-3 (DSX-4H-24) Rear Cross-Connect System bay are shown in Figures 1-3 and 1-4.
  • Page 16 ADCP-80-314 • Issue 6 • January 2001 • Section 1: Description and Application 3 AMP BLOWN FUSE FUSE INDICATOR MAXIMUM 50 AMP MAXIMUM TOTAL BUSS AMPERAGE 8666-A Figure 1-3. DSX-3 (DSX-4H-24) Rear Cross-Connect System Bay (Front View) Page 1-7  2001, ADC Telecommunications, Inc.
  • Page 17 X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN 8665-A Figure 1-4. DSX-3 (DSX-4H-24) Rear Cross-Connect System Bay (Rear View) Page 1-8  2001, ADC Telecommunications, Inc.

  • Page 18: Dsx-4H Circuit Modules

    TNC coaxial connectors at the back of the module are used for connecting the equipment in/out cables and cross-connect jumpers. Specific functions of the circuit module components are defined in Table 1-1. Table 1-1. DSX-3 (DSX-4H-24) Circuit Module Components NAME TYPE LOCATION FUNCTION...

  • Page 19: Dsx-4H Chassis

    ADCP-80-314 • Issue 6 • January 2001 • Section 1: Description and Application Table 1-1. DSX-3 (DSX-4H-24) Circuit Module Components, continued NAME TYPE LOCATION FUNCTION Standard or Front Provides test or patch access to digital Midsize Switching equipment output terminations. Any...

  • Page 20: Fuse Panel

    × 30.48 cm). Shelf mounting holes are spaced at one inch (2.54 cm). An AC outlet may be provided at the bottom front of the bay as an auxiliary source of 110 Vac primary power. 6 SYSTEM SPECIFICATIONS Specifications for the DSX-3 (DSX-4H-24) Front Cross-Connect System are shown in Table 1-2.
  • Page 21 27 feet (8.23 m) of cross-connect cable. Crosstalk: Better than –60 dB. Return Loss: Greater than 20 dB (DC to 300 mHz). Monitor Level: 21.5 dB ±1.5 dB below signal level (DC to 300 mHz). Page 1-12  2001, ADC Telecommunications, Inc.

  • Page 23: General

    This section provides complete instructions for installing the DSX-3 (DSX-4H-24) Rear Cross-Connect System. It is recommended that the entire section be read and understood before beginning installation. If additional installation information is required, refer to DSX-3 (DSX-4H-24) Rear Cross- Connect Installation Guide, ADCP-80-321. 2 OFFICE REQUIREMENTS 2.1 Space and Floor Loading...

  • Page 24: Environment

    • Relative Humidity: 0% to 95% without condensation. 2.2.2 Operational The DSX-3 (DSX-4H-24) Rear Cross-Connect System must be operated in ambient temperatures and humidities which do not exceed the following: • Temperature: –40° to +65° C (–40° to +149° F).

  • Page 25: Installation

    3.1.1 Positioning and Mounting of New Bay Caution: A crated DSX-3 (DSX-4H-24) Rear Cross-Connect System bay weighs approximately 585 pounds (265 kg.). An adequately rated and secured block and tackle or overhead hoist must be used while uncrating, positioning, and securing the bay.

  • Page 26: Circuit Module Installation

    M O N O U T O U T O U T O U T O U T O U T O U T MODULE 8673-A RETAINING SCREWS Figure 2-1. DSX-4H Circuit Module Installation Page 2-4  2001, ADC Telecommunications, Inc.

  • Page 27: Installation Of Office/Equipment Cabling

    X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN X-OUT X-IN 8665-A Figure 2-2. Typical Cross-Connect System Cabling Page 2-5  2001, ADC Telecommunications, Inc.
  • Page 28 SPACER FILLER KIT Figure 2-3. Cable Routing from Top to Bottom If the cables are coming in from below, cable attachment should start at the top and work down (refer to Figure 2-4). Page 2-6  2001, ADC Telecommunications, Inc.
  • Page 29 Record all equipment terminations on the labels provided on the front of each module. Record cross-connect terminations on the adhesive-backed designation labels provided on the back of the chassis. Page 2-7  2001, ADC Telecommunications, Inc.

  • Page 30: Office Power To Bay Wiring

    –48 Vdc and Ground. (Number 6 compression lug is provided with DSX- FP20F fuse panel.) 3. Complete the connection (Step 2) to the –48 V (NEG(–)BUS) and ground (POS(+)BUS) terminals on the fuse panel. See Figure 2-6. Page 2-8  2001, ADC Telecommunications, Inc.
  • Page 31 ADC DSX-4H cross-connect jumpers are available in various lengths from 1 to 27 feet (0.3 to 8.23 m). It is important to select the proper cable length to prevent congestion. Cross-connect jumpers are also available with one connector factory terminated and one connector kit which is terminated on site.
  • Page 32 LOWER CROSS- CONNECT WIREWAYS RECOMMENDED SPACING NOTE: BASED ON THE TYPE OF CABLE SELECTED FOR EQUIPMENT IN/OUT CABLING AND CROSS-CONNECT JUMPER, THE ADC RECOMMENDED SPACING IS AS FOLLOWS: APPLICATION EQUIPMENT I/O X-CONN SPACERS REQUIRED FOR UEF BAYS 735A/734A 735A OR 0222 ONE 10-INCH (25.4 CM) BETWEEN BAYS...

  • Page 33: Power Application And System Checkout

    DSX-4H circuit module. Pulling of this button should cause the corresponding tracer lamp and the tracer lamp at the other end of the cross connect to flash for approximately 30 seconds and then remain lit until the button is pushed back in. Page 2-11  2001, ADC Telecommunications, Inc.

  • Page 35: General

    • A brief description of the procedure and its purpose. • A general schematic illustration of the procedure. • Steps to perform the procedure. If problems are encountered in performing any of these procedures, contact ADC as described in Section 5 - General Information. Page 3-1...
  • Page 36 30 seconds and then remain lit. Push lamp switch button back in to extinguish tracer lamps after use. X-O/ X-O/ LAMP LAMP SWITCH SWITCH MESSENGER CORD -48V -48V X-IN X-IN X-OUT X-OUT KNOWN UNKNOWN EQUIPMENT EQUIPMENT 1280-B Page 3-2  2001, ADC Telecommunications, Inc.
  • Page 37 IN jack of the circuit to be tested. Remove test equipment patch cords after testing is complete. X-O/ X-O/ MESSENGER LAMP LAMP CORD SWITCH SWITCH PERMANENT CROSS-CONNECT -48V -48V JUMPERS X-IN X-IN X-OUT X-OUT EQPT EQPT 1281-B TEST EQUIPMENT Page 3-3  2001, ADC Telecommunications, Inc.
  • Page 38 (c) Remove Standby Facility IN jack { to bridging repeater OUT jack z. (d) Remove bridging repeater IN jack y to Office Equipment MON jack x. Perform steps 9(c) and 9(d) at corresponding far end office. Page 3-4  2001, ADC Telecommunications, Inc.
  • Page 39 MESSENGER CORD SWITCH SWITCH EXISTING CROSS-CONNECT -48V -48V JUMPERS X-IN X-IN X-OUT X-OUT TERM PLUG OFFICE FAILED EQUIPMENT FACILITY PATCH X-O/ CORD LAMP SWITCH -48V X-IN X-OUT TERM PLUG STANDBY FACILITY BRIDGING REPEATERS 8798-A Page 3-5  2001, ADC Telecommunications, Inc.
  • Page 40 (c) Remove New Facility IN jack { to bridging repeater OUT jack z. (d) Remove bridging repeater IN jack y to Office Equipment MON jack x. Perform steps 11(c) and 11(d) at corresponding far end office. Page 3-6  2001, ADC Telecommunications, Inc.
  • Page 41 EXISTING CROSS-CONNECT -48V -48V JUMPERS X-IN X-IN X-OUT X-OUT TERM PLUG EXISTING OFFICE FACILITY EQUIPMENT PATCH X-0/ CORDS LAMP SWITCH -48V X-IN X-OUT CROSS-CONNECT JUMPERS TERM PLUG FACILITY BRIDGING 8799-A PATCH REPEATERS CORDS Page 3-7  2001, ADC Telecommunications, Inc.
  • Page 42 After the Failed Facility is repaired, remove all patch cords to restore service between the interrupted sites. X-O/ X-O/ LAMP LAMP SWITCH SWITCH -48V -48V X-IN X-IN X-OUT X-OUT FAILED OFFICE FACILITY EQUIPMENT X-O/ LAMP SWITCH PATCH -48V CORDS X-IN X-OUT STANDBY FACILITY 8800-A Page 3-8  2001, ADC Telecommunications, Inc.

  • Page 43: Procedure 3: In-Service Patching To Bypass A Failed Facility

    Fiber Terminal for the present location. Install cross-connect jumpers and messenger wires z between the multiplexer and fiber terminal for the new location. Remove temporary patch cords x. Record the new office cross-connect arrangement on the DSX-3 designation strips/cards. X-O/ X-O/ LAMP...

  • Page 45: General

    • Replacement of circuit modules. • Inspection and repair of cabling and connections. For any repairs other than described in this section, contact ADC Field Service at the telephone numbers listed in the General Information section of this manual. If a call is placed after hours or on a holiday or weekend, an answering device will take the message and alert service personnel for callback the following business day.

  • Page 46: Tracer Lamp Replacement

    4. Grasp the replacement circuit module in the same manner and slide it into the bay. Install the two module retaining screws. 5. Connect all cables to the replacement circuit module as shown on previously prepared records or labels (see Step 1). Page 4-2  2001, ADC Telecommunications, Inc.
  • Page 48 952-946-3475 (outside U.S.A. and Canada) for software service agreement information. 3 REPAIR/EXCHANGE POLICY All repairs of ADC Products must be done by ADC or an authorized representative. Any attempt to repair or modify ADC Products without authorization from ADC voids the warranty.
  • Page 49 If the defect and the necessary repairs are covered by the warranty, and the applicable warranty period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to return the defective Product. ADC will repair or replace the Product at no charge and pay the return shipping charges.
  • Page 50 Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages.
  • Page 51 www.adc.com...

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