COMSPHERE 3500 SERIES DATA SERVICE UNITS MODELS 3510 & 3511 QUICK REFERENCE Document No.
Copyright 1999 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice This publication is protected by federal copyright law. No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or translated into any human or computer language in any form or by any means, electronic, mechanical, magnetic, manual or otherwise, or disclosed to third parties without the express written permission of Paradyne Corporation, 8545 126th Ave. N.
TM COMSPHERE 3500 Series Data Service Units Models 3510 & 3511 Quick Reference Document Number 3510-A2-GL10-10 March 1999 Product Documentation on the World Wide Web We provide complete product documentation online. This lets you search the documentation for specific topics and print only what you need, reducing the waste of surplus printing. It also helps us maintain competitive prices for our products. Complete documentation for this product is available at www.paradyne.com.
Installation Procedures This section provides instructions for installing standalone Model 3510 DSUs and carrier-mounted Model 3511 DSUs. Refer to the appropriate section. Model 3510 DSU Installation Physical installation of the Model 3510 consists of unpacking the DSU and placing it in its planned location. Electrical installation requires the following procedure. Procedure 1. Coordinate the installation with the telephone company and affected digital network user locations. 2.
. Perform the Device Test as described in the Operation section of the User’s Guide. If the DSU fails this test, replace the DSU. 6. Connect the network interface. The Model 3510 DSU’s rear panel contains a miniature universal service ordering code (USOC) type RJ48S jack for connecting your DSU to the digital network. Purchasers in the United States receive a modular telephone cable (D8W-87) with each DSU, with identical connectors on both ends.
Model 3511 DSU Installation This section includes the installation procedures for the Model 3511 DSU, which is designed for installation in a COMSPHERE 3000 Series Carrier. Before installing the DSU, verify that the carrier has been installed properly and is operational. CAUTION: Discharge any static electricity that may be present on your body by touching a properly grounded object (e.g., cold water pipe, frame ground, or data cabinet). Do not handle the circuit card unnecessarily.
Installing the Rear Connector Plate To install a DSU and its rear connector plate for the first time: Procedure 1. Configure the DSU to meet the requirements of the application (refer to Hardware Strapping on page 8). Do not disable the front panel switches at this time. 2. At the rear of the carrier, set the tab on the rear connector plate into one of the slots on the carrier’s backplane. Make sure the rear connector plate uses the same slot position intended for the DSU. 3.
5. At the front of the carrier, hold the DSU vertically with the latch on its faceplate in the open position. Then, insert the circuit card into the top and bottom circuit card guides for the slot that contains the rear connector plate. 6. Aligning the circuit card with the rear connector plate, slide the DSU into the slot until the connectors seat firmly into the back of the carrier. 7.
25-Pin Connector Thumbscrews V.35 Adapter V.35 Cable 99-16298 Model 3511 DSU V.35 Adapter Installation (Feature Number 3000-F1-510) Connecting to the Digital Network The installed DSU is connected to the digital network through the 50-pin connectors on the rear of the carrier. These interfaces are specified in USOC RJ48T. Proper network connection to the DDS facility or a network channel terminating equipment must be made at the far end of the cable.
Hardware Strapping Both Model 3510 and 3511 DSUs can be configured for installation at the local or remote end of a network by setting onboard straps. The straps also allow you to configure either type of DSU (Model 3510 or 3511) as a LADS for connection to 4-wire metallic circuits.
For the Model 3510 DSU, the straps are concealed behind the faceplate. To remove the faceplate to change the hardware straps: Procedure 1. With your thumbs under the edge of the front bezel, firmly press upward to lift the bezel from the tabs securing it in place. 2. Swing the front bezel up and set the bezel aside. 3. Refer to the tables included in this section to determine which switches need to be changed. Then, using a small instrument, carefully change the position of the switches. 4.
Table 1.
Table 1. Straps S1 through S5 (2 of 2) Switch Selection Position S4–1 S4–2 S4–3 S4–4 S4–5 S4–6 Function See Table 4, See Table 4, See Table 4, See Table 4, See Table 4, See Table 4, Network Address Selection for Model 3510. Network Address Selection for Model 3510. Network Address Selection for Model 3510. Network Address Selection for Model 3510. Network Address Selection for Model 3510. Network Address Selection for Model 3510.
Table 3. Data Rate Selection S2–1 S2–2 S2–3 S2–4 F R R R 2400 bps (+6 dBm) F R F R 4800 bps (+6 dBm) F R R F 9600 bps (0 dBm) (Default) R R R R 19,200 bps (–10 dBm) R F R R 19,200 bps (0 dBm) F R F F 19,200 bps (+6 dBm) R R F R 38,400 bps (+6 dBm) R R F F 56,000 bps (+6 dBm) R F R F 64,000 bps CC (+6 dBm) R R R F 64,000 bps LADS (+6 dBm) Data Rate (Signal Level) F = Front R = Rear NOTE: Other data rate combinations should not be used. Table 4.
Table 4.
Table 4.
Table 4. Network Address Selection for Model 3510 (4 of 4) Switch S4 Selection Network Address 1 2 3 4 5 6 56 F F F R R R 57 F F F R R F 58 F F F R F R 59 F F F R F F 60 F F F F R R 61 F F F F R F 62 F F F F F R 63 F F F F F R R R R R R R 64 (Default) F = Front R = Rear DSU Strap Setting Descriptions The following information provides DSU strap setting descriptions.
S1-4: DSR Normal during Local Loopback – DSR ON during Local Loopback. When enabled, this strap forces the DSR lead ON during a Local Loopback. This allows DTEs that rely on DSR being on to send test messages to the DSU. When disabled, DSR is turned Off during a Local Loopback. S1-5: Elastic Store – When enabled, the DSU compensates for small (3 bits) timing phase drifts that may occur when the DTE interface of the DSU is connected to the DTE interface of an analog modem to provide an extended network.
S3-5: Scrambler – This strap enables the data scrambler to be used with 64 kbps Clear Channel operation. Select this strap to reduce the probability of customer data accidentally generating network control codes. The DSUs at each end must be 3500 Series DSUs, and both must be strapped the same (scrambling or no scrambling). Unless all DSUs on a circuit are 3500s, scrambling should be disabled. S3-6: EIA-232-D/V.24 DTE Interface/CCITT V.
! Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. This product is intended to be used with a 3-wire grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation. Do not defeat the purpose of the grounding type plug by modifying the plug or using an adapter.
Notices ! WARNING:
No repairs may be performed by the user. Should you experience difficulty with this equipment, refer to Warranty, Sales, Service, and Training Information inside the cover of this document. For Digital Data Service (DDS) installations, inform the local telephone company of the appropriate facility interface code for the service you desire.
Users should ensure that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together for protection. This precaution may be particularly important in rural areas. CAUTION: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or an electrician, as appropriate. The load number (LN) is labeled on the equipment.
