Black Box T1 CSU/DSU Manual
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Black Box T1 CSU/DSU Manual

Black Box T1 CSU/DSU Manual

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T1 CSU/DSU (V.35)
T1 CSU/DSU (449)
T1 CSU/DSU (530)
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
SUPPORT
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
INFORMATION
Web site: www.blackbox.com • E-mail: info@blackbox.com
DECEMBER 2001
MT100A-35-R2
MT100A-449-R2
MT100A-530-R2

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  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC STATEMENT FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
  • Page 3 T1 CSU/DSU (V.35, 449, or 530) INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement) 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
  • Page 4 TRADEMARKS TRADEMARKS USED IN THIS MANUAL Accunet and AT&T are registered trademarks of AT&T. UL is a registered trademark of Underwriters Laboratories Incorporated. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. Registration Numbers FCC Registration Number (unit) .........GBRUSA-18888-DE-N ®...

  • Page 5: Table Of Contents

    T1 CSU/DSU (V.35, 449, or 530) Contents Chapter Page 1. Specifications ................................5 2. Introduction................................8 2.1 Overview ................................8 2.2 Bantam Jacks ..............................8 2.3 Loopback Switches ............................8 2.3.1 Remote CSU/Aggregate Loopback ....................9 2.3.2 Remote Channel Loopback ......................9 2.3.3 Local Channel Loopback Diagnostic ....................9 2.3.4...

  • Page 6: Specifications

    CHAPTER 1: Specifications 1. Specifications Configuration - DIP-switch selectable, readily accessible from the rear panel Aggregate - Recommended Cable Requirement: STP - Line Rate: 1.544 Mbps ±50 bps - Line Format: AMI or B8ZS - Framing Format: D4 or ESF(Fe) - Pulse Characteristics: AT&T ®...
  • Page 7 T1 CSU/DSU (V.35, 449, or 530) DTE Channels MT100A-35-R2: CCITT V.35 interface; 34-pin M block (female) connector MT100A-449-R2: EIA RS-449 interface; DB37(female) connector MT100A-530-R2: EIA RS-530 interface; DB25 (female) connector - Density: Alternate DS0 (Fractional T1), Bit 7 stuffing, or None...
  • Page 8 CHAPTER 1: Specifications Front-Panel Network Indicators - Loss Of Signal (LOS) - Bipolar Violations (BPV) - Synchronization - Red Alarm - Yellow Alarm - Test Front-Panel DTE Channel Indicators - Transmit Data (TD) - Receive Data (RD) - Request To Send (RTS) - Receive Line Signal Detect (RLSD) Mean Time Between Failure (Estimated) 40,000 hours...

  • Page 9: Introduction

    The T1 CSU/DSU has a built-in CSU which complies with AT&T Publication 62411. This allows you to attach the T1 CSU/DSU directly to the T1 circuit. This CSU can be enabled or disabled with a simple switch setting so that the unit can act as a DSU or as a DSU/CSU. It can also be used as a high-speed line driver to extend high- speed data circuits up to 6000 feet (1828.8 m) over shielded twisted-pair (STP) cable.

  • Page 10: Remote Csu/Aggregate Loopback

    CHAPTER 2: Introduction 2.3.1 R CSU/A EMOTE GGREGATE OOPBACK The Remote CSU/Aggregate Loopback (see Figure 2-1) test lets you verify the logic from the local interface through the remote aggregate and back to the local channel interface. To select this test, position the Aggregate Loopback switch in the Remote position.

  • Page 11: Local Aggregate Loopback

    GGREGATE OOPBACK The Local Aggregate Loopback diagnostic (Figure 2-4) lets you verify the T1 CSU/DSU logic from the channel interface, through the aggregate, and return to the channel interface. To select this test, position the Aggregate Loopback switch in the Local position. When complete, reposition the switch to the center position.

  • Page 12: Rear-Panel Controls And Interface Connectors

    LBO Switch must be set to the 0 dB position. 2.7 Channel Interface Connections T1 CSU/DSU is configured for DTE connection with one of these three interfaces: V.35, RS-449, or RS-530 (female connectors). Below are the pinouts (male connectors) for these interfaces.

  • Page 13: Power Connection

    T1 CSU/DSU (V.35, 449, or 530) 2.7.1 P OWER ONNECTION The power connector (female) is on the rear panel. The male connector of the DC power supply plugs into this female connector. Figure 2-6 shows the pinout of the 5-pin DIN connector.
  • Page 14 CHAPTER 2: Introduction Figure 2-7. Network Connector: DB15-to-RJ-48 Pigtail Cable.

  • Page 15: Installation

    Before installing the T1 CSU/DSU, carefully read and understand the entire installation procedure. Although we take great care to make sure that the T1 CSU/DSU is properly packaged so that it will not be damaged during transit, it is your responsibility to verify that the unit arrives undamaged. Before unpacking the T1 CSU/DSU, read the following: 1.

  • Page 16: Dte Channel Cabling

    Power to the T1 CSU/DSU is supplied by a separate DC power supply. Insert the power supply male DIN connector into the female DIN connector at the rear of the unit. Insert the power cable male connector into a...

  • Page 17: Operation

    T1 CSU/DSU (V.35, 449, or 530) 4. Operation The T1 CSU/DSU is controlled by a series of simple switch settings that the operator can select by accessing Switches one, two, and three at the rear of the unit. 4.1 Modify Configuration To configure a new T1 CSU/DSU Series or modify the configuration of an existing T1 CSU/DSU Series, first determine the correct information by reviewing the following worksheet.
  • Page 18 CHAPTER 4: Operation Configuration Worksheet Customer Name: __________________________________________________________ Date: __________________________________________________________________ Customer Location: ________________________________________________________ Configuration: ____________________________________________________________ Switch One Settings 1. Data Rate Selection (see Table 4-2) ..........S1-1 S1-2 S1-3 2. DTE Channel Multiples N x 56 kbps: ....S1-4: On N x 64 kbps: ....S1-4: Off Selectable N x 56 Rates: 8, 16, 24, 32, 40, 48, 56, 64, 112, 168, 192, 224, 280, 320, 336, 448, 560, 672, 840, 960, 1120, and 1344 kbps.
  • Page 19 T1 CSU/DSU (V.35, 449, or 530) 3. Channel Send Timing: Loop 1 (Terminal Timing) ........S1-5: On Loop 2 (Send Timing) ........S1-5: Off 4. Channel Timing: Normal ..............S1-6: On Inverted ..............S1-6: Off 5. Channel Data: Normal ..............S1-7: On Inverted ..............S1-7: Off 6.
  • Page 20 CHAPTER 4: Operation Switch Two Settings 1. LBO Setting. (Active only in the CSU mode of operation. When operating in the DSX-1 mode, the LBO switch must be in the 0 dB position.) Position the LBO switch as directed by the carrier: -1 5 dB -7.5 dB 0 dB...
  • Page 21 T1 CSU/DSU (V.35, 449, or 530) In making the following 5 selections, the operator defines the mode of operation as DSX-1 and also specifies the proper transmit output pulse. 4. Transmit Output Pulse: (DSX-1 Mode Only. If any of the output pulse selections are made, then the CSU selection is invalid.
  • Page 22 CHAPTER 4: Operation 1 in 48 ..............S3-6: Off S3-7: On S3-8: Off 1 in 64..............S3-6: Off S3-7: Off S3-8: Off None..............S3-6: On S3-7: N/A S3-8: N/A 6. Zero Byte Suppression: Inhibit..............S3-9: On Active ..............S3-9: Off 7. DS0 Mapping: A. Contiguous ..............S3-10: On B.

  • Page 23: Configuration Tables

    T1 CSU/DSU (V.35, 449, or 530) 4.2 Configuration Tables When you become proficient with the T1 CSU/DSU’s configuration procedures, it may be easier and simpler to use the configuration tables presented below (also available on the bottom of the device) to quickly configure the T1 CSU/DSU Series.
  • Page 24 CHAPTER 4: Operation Table 4-3. Aggregate Timing Selection. Transmit Timing Reference S1-9 S1-10 Internal (Master) Crystal Timing Loop (Slave) Timing External Channel Timing Internal (Master) Crystal Timing Table 4-4. Configuration Switch 3 Settings. Position Description Framing Format ESF (Fe) Encoding Format B8ZS Output Pulse see Table 4-5...
  • Page 25 T1 CSU/DSU (V.35, 449, or 530) Table 4-5. Output Pulse Selection. Line Length Selected S3-3 S3-4 S3-5 DSX-1 0 – 133 ft. DSX-1 133 – 266 ft. DSX-1 266 – 399 ft. DSX-1 399 – 533 ft. DSX-1 533 – 655 ft.

  • Page 26: Appendix: Fcc Documentation Requirements

    You will be informed of your right to file a complaint with the FCC. 4. If you experience trouble with the telephone equipment, please contact Black Box at 724-746-5500 for information on obtaining service or repairs.
  • Page 27 T1 CSU/DSU (V.35, 449, or 530) AFFIDAVIT FOR THE CONNECTION OF CUSTOMER PREMISES EQUIPMENT TO 1.544 Mbps AND/OR SUBRATE DIGITAL SERVICES. For work to be performed in the certified territory of ___________________________________________________________________________________________ (TELCO Name) State of: ___________________________________________________________________________________ County of: ________________________________________________________________________________...
  • Page 28 APPENDIX: FCC Documentation Requirements I attest that the operator(s)/maintainer(s) of the digital CPE responsible for the establishment, maintenance, and adjustment of the encoded analog content and billing information has (have) been trained to perform these functions by successfully completing one of the following (check all that apply): a.
  • Page 29 © Copyright 2001. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

This manual is also suitable for:

Mt100a-35-r2Mt100a-449-r2Mt100a-530-r2

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