Model T B Intraoffice T1 Repeater User Manual

Transcription

1 Model B Intraoffice Repeater User Manual Model B A Content Page INTRODUCTION... 1 Revision History... 2 Trademark Information PRODUCT DESCRIPTION SPECIFICATIONS INSTALLATION OPERATION CUSTOMER INFORMATION AND ASSISTANCE... 7 INTRODUCTION This manual describes ADC's Model B Intraoffice Repeater. The product is a single regenerative repeater intended for use on (1.544 Mbps) transmission lines. It may also be used to interconnect bays when the interconnection violates the 85 foot design standard patch cord length. The repeater consists of a printed circuit card attached to a front panel designed to be installed in the ADC Model M Mounting Shelf. The repeater is identified on the front panel by the imprinted model number Rev A Page 1

2 Revision History ISSUE DATE REASON FOR CHANGE Issue 11 01/1999 Reissued to include Equalizer Network option selections for manufacture discontinued repeaters, Model and A. Issue 12 08/2000 Update to current format standards. Trademark Information ADC and ADC Telecommunications are registered trademarks of ADC Telecommunications, Inc. 1 PRODUCT DESCRIPTION The Model B plug-in Intraoffice (1.544 Mbps) Repeater regenerates standard signals and provides standard DS1 level output signals through switchable equalizers at distances up to 655 feet. An artificial line at the input provides a shaped line loss input signal level in the range from 0 to 27 db, relative to the level. Figure 1 shows a block diagram of Model B, Intraoffice Repeater. The repeater is designed to automatically detect and operate from a dc supply voltage of either 15 Vdc or 48 Vdc. Each repeater is individually fused. A front panel LED, next to the fuse, indicates a fuse failure. A relay alarm board on the mounting shelf provides two sets of Normally Open (NO) dry contacts for connection to local alarm surveillance equipment. A mounting shelf alarm condition (plug-in module fuse failure) operates the alarm relay and closes the NO alarm contacts. The relay alarm board may be bypassed and local alarm surveillance equipment can be connected to the back panel twelve-pin connector wire-wrap alarm lead pin F. A plug-in module fuse failure places 48 Vdc battery on the F pin. Selectable equalization networks at the output of the regenerator correct for 0 to 220 feet, 220 to 440 feet, or 440 to 655 feet, (0 to 67 m, 67 to 134 m, or 134 to 200 m) of ABAM or equivalent cable gauge as shown in Figures 2 and 3. Figure 4 illustrates the use of a repeater to overcome the designed maximum transmission distance of patch cords. Page 2

3 +V ALM 3 F LED -V 6 CHASSIS C GND -18 A POWER SUPPLY T INPUT R 5 4 ARTIFICIAL LINE REGENERATOR T2 EQUALIZER NETWORKS 2 OUTPUT 1 R1 SW 1-4 (0-220) SW 5-8 ( ) SW 9-12 ( ) 9090-C Figure 1. Intraoffice Repeater Model B Page 3

4 INTEROFFICE REPEATERS BAY BAY 1310 FEET (400 M) MAXIMUM B Figure 2. Bay to Bay INTEROFFICE REPEATERS LEVEL BAY MUX OR DIGITAL SWITCH 1965 FEET (599 M) MAXIMUM B Figure 3. Bay to Network Element INTRAOFFICE REPEATERS 85 FT. (26 M) TO 1310 FT. (400 M) 9114-C Figure 4. Patching where the Length of the Patch is Greater than 85 Feet Page 4

5 2 SPECIFICATIONS Specifications for the Intraoffice Repeater are listed in Table 1. Table 1. Specifications PARAMETER SPECIFICATION REMARKS Input/Output Impedance 100 ohms Nominal at 772 khz. Input Signal Level 0 to 27 db Shaped line loss relative to level (3V peak). Input Signal Frequency Output Signal Mbps ± 200 bps Equalizers 0 to 220 feet (0 to 67 m) 220 to 440 feet (67 to 134 m) 440 to 655 feet (134 to 200 m) Electrical Supply Voltage, Range 1 Supply Voltage, Range 2 Supply Current, Range 1 Supply Current, Range 2 Fuse 42 to 56 Vdc 14 to 16 Vdc 45 ma maximum 65 ma maximum 0.18 A (GMT type) Meets Interconnect Specification TR-TSY for a range of up to 655 feet. Environmental Operating Temperature 0 C to 50 C (+32 F to +122 F) Storage Temperature 40 C to +70 C ( 40 F to +158 F) Humidity 5% to 95%. No condensation Physical Description Dimensions inches ( cm) 3 INSTALLATION Pin connections for the repeater mounting shelf are shown in Figure 5. The alpha pin designations refer to the right-hand column of terminals on the mounting shelf connector, while the numeric designations refer to the left-hand terminals as viewed from the rear of the mounting shelf. Prior to installing the module into the mounting shelf, the equalizer network selection switches must be set. The repeater is factory set for interconnection at 0 to 220 feet (67 m). The option switch assembly, shown in Figure 6 for Model B, is a dip switch with twelve switch selections for inserting the equalizer networks in the output of the repeater. Network selection is determined by the cable length between the repeater and the (point of interconnection). Selectable distances are from 0 to 220 feet, 220 to 440 feet and 440 to 655 feet, (0 to 67 m, 67 m to 134 m and 134 to 200 m). Table 2 lists the switch settings for Model B. Page 5

6 The Intraoffice Repeater occupies one position in the mounting shelf. Prior to inserting the repeater into the mounting shelf, the equalizer network option switches must be determined and set. To install the repeater, proceed as follows: Slide the keyed card into place in the mounting shelf and make sure it is 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. INPUT OUTPUT -V T R +V (GND) R F E D C B A ALARM SHIELD (OPTIONAL) 9115-A Figure 5. Pin Connections EQUALIZER NETWORK SWITCHES F1 T2 IN IN IN L1 SW1 DS A Figure 6. Intraoffice Repeater Options Model B Table 2. Equalizer Network Switch Settings Model B EQUALIZER SWITCH 1 NETWORK (FEET) SW 1 TO 4 SW 5 TO 8 SW 9 TO 12 0 TO 220 IN OUT OUT 220 TO 440 OUT IN OUT 440 TO 665 OUT OUT IN Note 1: Factory set - 0 to 220 feet. Note 2: Switches are IN, ON or CLOSED in the UP position and OUT, OFF OR OPEN in the DOWN position and must be operated in groups of four. 4 OPERATION The repeater is operational as soon as it is installed in the mounting shelf and power is applied. Page 6

7 5 CUSTOMER INFORMATION AND ASSISTANCE For customers wanting information on ADC products or help in using them, ADC offers the services listed below. To obtain any of these services by telephone, first dial the central ADC telephone number, then dial the extension provided below. The central number for calls originating in the U.S.A. or Canada is For calls originating outside the U.S.A. or Canada, dial country code 1 then dial Sales Assistance Extension 3000 Systems Integration Extension 3000 BCG Technical Assistance Center Extension technical@adc.com Product Return Department Extension repair&return@adc.com Quotation Proposals Ordering and Delivery General Product Information Complete Solutions (from Concept to Installation) Network Design and Integration Testing System Turn-Up and Testing Network Monitoring (Upstream or Downstream) Power Monitoring and Remote Surveillance Service/Maintenance Agreements Systems Operation Technical Information System/Network Configuration Product Specification and Application Training (Product-Specific) Installation and Operation Assistance Troubleshooting and Repair ADC Return Authorization number and instructions must be obtained before returning products. Product information may also be obtained using the ADC web site at or by writing ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, MN , 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 , extension 3475 (in U.S.A. or Canada) or (outside U.S.A. and Canada), or by writing to ADC Telecommunications, Inc., Attn: Technical Assistance Center, Mail Station #71, P.O. Box 1101, Minneapolis, MN , U.S.A. All Rights Reserved Printed in U.S.A. Page 7