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ADCP-61-133 Issue 2, January 1998 E1 Pseudo-Random Test Pattern Common Module and Output Module User Manual Q20 48- 20 10466-A Content Page INTRODUCTION ........................................................................... 1 Revision History ....................................................................... 2 Admonishments ....................................................................... 2 1. GENERAL ............................................................................ 2 2. FUNCTIONAL DESCRIPTION ............................................................. 2 A. PRTP Common Module .............................................................. 3 B. PRTP Output Module ................................................................ 4 3. PHYSICAL DESCRIPTION................................................................ 5 4. TECHNICAL DESCRIPTION .............................................................. 5 5. INSTALLATION ........................................................................ 7 6. OPERATION .......................................................................... 8 7. SYSTEM INTEGRATION SERVICES ........................................................ 8 8. CUSTOMER SUPPORT SERVICES ........................................................ 9 INTRODUCTION This manual provides the description, installation and operating instructions for ADC's Pseudo Random Test Pattern (PRTP), Signal Source Common Module, Model Q2048-20, and Output Module, Model Q2048-21. The modules operate at a bit rate of 2.048 Mb/s. 2-42932-2072 Page 1 © 1998, ADC Telecommunications, Inc. ADCP-61-133 Issue 2, January 1998 Revision History ISSUE DATE REASON FOR CHANGE Issue 1 01//92 Original. Issue 2 01/98 Reformatted to comply with current standards, photos converted to line art. Admonishments Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment. An admonishment identifies a possible hazard and then explains what may happen if the hazard is not avoided. The admonishments — in the form of Dangers, Warnings, and Cautions — must be followed at all times. These warnings are flagged by use of the triangular alert icon (seen below), and are listed in descending order of severity of injury or damage and likelihood of occurrence. Danger: Danger is used to indicate the presence of a hazard that will cause severe personal injury, death, or substantial property damage if the hazard is not avoided. Warning: Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the hazard is not avoided. Caution: Caution is used to indicate the presence of a hazard that will or can cause minor personal injury or property damage if the hazard is not avoided. 1. GENERAL The Common Module provides 10 PRTP outputs and the future optional Output Module 1.01 provides 20 PRTP outputs. A Common Module may control either one Output Module (30 outputs) or two Output Modules (50 outputs). 2. FUNCTIONAL DESCRIPTION 2.01 The E1 (2.048 Mb/s) PRTP performs the following functions: • Provides a controlled error-free test signal used during troubleshooting. • Provides a far-end office with a standard signal source for bit error-rate measurements. • Provides testing signals for spans thought to be marginal. • Drives unassigned lines. • Drives idle lines during system turn-up or span line rearrangements. • Drives maintenance and backbone lines. Two PRTP Common Modules and four Output Modules can be mounted in ADC's 2.02 Model M1544-100 QRSS/Bridging Repeater Mounting Shelf. Altogether, they provide a total of 100 PRTP outputs. The QRSS/Bridging Repeater Mounting Shelf also provides eight (8) mounting slots for Bridging Repeaters. Page 2 1998, ADC Telecommunications, Inc. ADCP-61-133 Issue 2, January 1998 A. PRTP Common Module The PRTP Common Module, (block diagram shown in Figure 1) generates a signal 2.03 32767 bits in length and is limited to three zeros with HDB3 or 14 zeros without. A full range of mark/space combinations is used to simulate the energy spectrum of an E1 line. The Common Module provides ten (10) outputs via wire-wrapped terminals at the rear of 2.04 the mounting shelf. It also provides the signal bit data to the first optional Output Module. The 48 Volt dc office battery power is fed through a Amp. GMT alarm type fuse, on the 2.05 Common Module, into a 48 to 5 Volt dc to dc converter. Most of the Common Module circuitry is powered from the 5 Vdc supply. The analog portion of the alarm circuitry for both modules is powered from the 48 Vdc office battery. The two optional Output Modules associated with the Common Module are also powered from the Common Module. The 48 Vdc office battery input is connected to a terminal block on the rear of the mounting shelf. The Common Module LED and its alarm relay contacts provide the essential alarm 2.06 functions. The LED is illuminated and the alarm relay releases under the following conditions: • Front panel fuse operates. • Loss of internal 5 Vdc supply. • Faulty PCM bit stream. The Common Module alarm relay only (LED is not illuminated) releases under the following conditions: • Input (48 Vdc) office battery fails. • Alarm signal from either optional Output Module. • Bridging Repeater alarm. Note: The ADC M1544-100 also provides mounting slots for eight ADC Bridging Repeaters. The alarm relay, in the normal position (operated), furnishes a dry contact alarm 2.07 interface with Normally Open" (NO) or Normally Closed" (NC) contacts for alarm leads. These alarm lead terminals appear on a terminal block, at the rear of the mounting shelf, for connection to a local alarm system. Page 3 1998, ADC Telecommunications, Inc. ADCP-61-133 Issue 2, January 1998 RAIL 2 E1 CLOCK CLOCK CIRCUITRY DOUBLE RAIL CONVERTER FAST CLOCK 3 ZERO DETECTOR 15 BIT SHIFT REGISTER FEEDBACK LOGIC 15 ZERO DETECTOR PATTERN LOGIC RAIL 1 TO OUTPUT MODULE QRW OUTPUT SHIFTING RAIL 1 BIPOLAR OUTPUT DRIVERS E1 OUTPUTS OUTPUT SHIFTING RAIL 2 RAIL 1 TO OUTPUT MODULE RAIL 2 TO OUTPUT MODULE ALARM CIRCUITRY –48V IN GND IN RELAY CONTACTS –5V OUTPUT MODULE 1 ALARM POWER CONVERTER GND OUTPUT MODULE 2 ALARM BOR ALARMS TO ALARM FAIL LAMP 10467-A Figure 1. Common Module Block Diagram B. PRTP Output Module One of the two optional Output Modules is depicted in Figure 2. Each Output Module 2.08 provides 20 PRTP outputs. A Common Module can control one or two Output Modules. Altogether a total of 50 PRTP outputs are provided via wire-wrapped terminals at the rear of the mounting shelf, per common module group. The first Output Module receives its signal bit data from the output of the Common 2.09 Module and the second Output Module receives its signal bit data from the first Output Module. The Output Modules are powered by the 5 Vdc supply from the Common Module and 2.10 the alarm circuit is powered from 48 Volt battery. The alarm circuitry is the same as in the Common Module except that the Output 2.11 Module alarm signal is sent back to the Common Module alarm relay. The Output module LED is illuminated and an alarm signal occurs under the following conditions: • Loss of the 5 Vdc. • Faulty PCM bit stream. Page 4 1998, ADC Telecommunications, Inc. ADCP-61-133 Issue 2, January 1998 FAST CLOCK RAIL 1 INPUT RAIL 2 INPUT OUTPUT SHIFTING RAIL 1 E1 OUTPUTS BIPOLAR OUTPUT DRIVERS OUTPUT SHIFTING RAIL 2 RAIL 1 (BIT FOLLOWING 20TH OUTPUT) RAIL 1 (BIT FOLLOWING 20TH OUTPUT) TO COMMON MODULE ALARM/RELAY ALARM CIRCUITRY GND IN –5V IN –48V IN FAIL LAMP TO ALARM 10468-A Figure 2. Output Module Block Diagram 3. PHYSICAL DESCRIPTION The PRTP Common Module and optional Output Module are plug-in printed circuit 3.01 cards, attached to a front panel, that mount in an ADC QRSS/Bridging Repeater Mounting Shelf, Model M1544-100. The front panel also has a pull-out handle. ADC equipment is identified by a model and part number on the front panel or located 3.02 elsewhere on the equipment. 3.03 The overall dimensions of the module are: Common Module: 25.7 9.4 1.5 cm (10.1 3.7 0.6 inches) Output Module: 25.7 9.4 1.5 cm (10.0 3.7 0.6 inches) 4. TECHNICAL DESCRIPTION 4.01 The Common and Output Modules specifications are listed in Table 1. Page 5 1998, ADC Telecommunications, Inc. ADCP-61-133 Issue 2, January 1998 Table 1. Specifications PARAMETER SPECIFICATION REMARKS Outputs Output Signal: PRTP Format Meets CCITT G.703 32767 bit sequence E1 Pulse Format: Rate of 2.048 Mbps ± 80 bps Pulse Width: 244 nsec ± 25 nsec Pulse Width Unbalance: Positive and negative pulse width ratio between 0.95 to 1.05. 45 nsec maximum. 3 Volts ± .3 Volts Mid pulse Positive and negative pulse amplitude ratio between 0.95 to 1.05. 67.05 m (0 to 220 feet) Rise/Fall Times: Pulse Amplitude: Pulse Amplitude Unbalance: Driving Distance Generated by a 15 bit shift register with bits 14 and 15 fed back. 14 zeros max. with AMI, 3 zeros max. with HDB3. Bipolar alternate mark inversion: 50% duty cycle. Note: Output parameters apply to E1 outputs with a nominal load of 120 ohms. Measured from 50% crossing of rising edge to 50% crossing of falling edge of pulse. 22 AWG shielded twisted pair cable. Environmental Power Requirements Supply Voltage: Supply Current: Common Module Alone: Common Module +1 Output Module: Common Module 2 Output Modules: Fuse: Ambient Temperature Operating: Storage: Relative Humidity: Operating: Storage: –42 to –56 Vdc. 100 mA. 135 mA. 170 mA. / Ampere. 1 2 0° C to +50° C (+32° F to +122° F) –40° C to +70° C (–40° F to +158° F) 20 to 80% (no condensation) 5 to 95% (no condensation) Physical Description Dimensions: Common Module: Output Module: Page 6 1998, ADC Telecommunications, Inc. 25.7 × 9.4 × 1.5 cm (10.1 × 3.7 × 0.6 inches) 25.7 × 9.4 × 1.5 cm (10.1 × 3.7 × 0.6 inches) 1/2 A fuse required for the onboard DC/DC converter used. ADCP-61-133 Issue 2, January 1998 5. INSTALLATION Warning: Never install telephone equipment in a wet location or during a lightning storm. When installing or modifying telephone lines, disconnect lines at the network interface before working with uninsulated lines or terminals. The PRTP Common Module mounts in position nine (9) and/or position twelve (12) of 5.01 thePRTP/Bridging Repeater Mounting Shelf. The optional PRTP Output Modules mount in positions ten (10), eleven (11), thirteen 5.02 (13), and fourteen (14). The Output Modules in positions 10 and 13 are driven by the Common Modules in positions 9 and 12 respectively. The Output Modules in positions 11 and 14 are driven by the Output Modules in positions 10 and 13 respectively. 5.03 PRTP applications only require a common module (10 outputs). The PRTP is factory shipped optioned for HDB3 operation. Figure 3 shows jumper 5.04 option position for HDB3 or AMI operation. To install the Common Module, proceed as follows: Slide the keyed card into place in 5.05 the mounting position and make sure it is firmly firmly seated. Electrical, circuit and alarm connections are established by plug-in contacts at the rear of the printed circuit card. Channel guides assure proper alignment of the card and positive connections of the contacts. If there is excessive resistance, remove the module and check for improper alignment or obstructions. Terminate all unused PRTP outputs with 100 or 120 ohm watt resistors. This may be 5.06 accomplished by wiring 100 or 120 ohm resistors to the PRPT output jacks using ADC's Resistor Panel Assembly, Part Number 4-26232-0010, (see Figure 4 for the wiring diagram). The Resistor Panel Assembly provides fifty watt 100 ohm resistors secured to wire-wrap terminal block pins and mounted on a 19-inch panel suitable for relay rack installation. Another method of terminating the unused PRTP output jacks is by inserting 120 ohm resistor plugs in the output jacks. AMI HDB3 10469-A Figure 3. HDB3/AMI Jumper Option Page 7 1998, ADC Telecommunications, Inc. ADCP-61-133 Issue 2, January 1998 RESISTANCE PANEL A T B T R R PRTP OUTPUT DSX-1 MISC. JACKFIELD 100/120 Ω S 10470-A Figure 4. Resistance Panel Wiring Diagram 6. OPERATION There are no operating instructions to initiate the operation of the Common and Output 6.01 Modules. The modules are operational as soon as they are installed in the mounting shelf and power is applied. 7. SYSTEM INTEGRATION SERVICES ADC offers the following system integration services. For calls originating in the U.S.A. 7.01 or Canada, dial 1-800-366-3891, extension 3000. For calls originating outside the U.S.A. or Canada, dial 612-946-3000. Technical Assistance Center • • • • • • • • • • • Technical Training • Product Technology • Custom Designed Training Technical Operations • Detail Engineering • End-to-End Installation • Drafting Services Page 8 1998, ADC Telecommunications, Inc. Product Management Project Engineering Project Administration Network Design Broadband Design (RF Design and Strand Mapping) Integration Network Testing Network Monitoring (Upstream or Downstream) Power Monitoring Remote Surveillance System Turn-Up and Test Service/Maintenance Agreements ADCP-61-133 Issue 2, January 1998 8. CUSTOMER SUPPORT SERVICES 8.01 ADC offers the following customer support services. For calls originating in the U.S.A. or Canada, dial 1-800-366-3891, then request the extension listed. For calls originating outside the U.S.A. or Canada, dial 612-946-3475 or 612-946-3000. BCG Technical Assistance Center Extension 3475 E-Mail: [email protected] • • • • • • • • Technical Information System/Network Configuration Product Specification Product Application Training Installation and Operation Assistance Troubleshooting and Repair Field Assistance Sales Administration Extension 3000 • • • • Quotation Proposals Ordering Delivery General Product Information Product Return Department Extension 3000 E-Mail: repair&[email protected] • ADC Return Authorization number and instructions must be obtained before returning products. 8.02 Product information and service can also be obtained by writing ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota 55440-1101, U.S.A. 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. This disclaimer of liability applies to all products, publications and services during and after the warranty period. This publication may be verified at any time by contacting ADC’s Technical Assistance Center at 1-800-366-3891, extension 3223 (in U.S.A. or Canada) or 612-946-3223 (outside U.S.A. and Canada), or by writing to ADC Telecommunications, Inc., Attn: Technical Assistance Center, Mail Station #77, P.O. Box 1101, Minneapolis, MN 55440-1101, U.S.A. © 1998, ADC Telecommunications, Inc. All Rights Reserved Printed in U.S.A. Page 9