Instruction/ maintenance manual of the product 3551 Paradyne
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COMSPHERE 3550 SERIES DA T A SERVICE UNITS MODELS 3550 AND 3551 QUICK REFERENCE Document No. 3550-A2-GL10-10.
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.
496-15149 TM 1 COMSPHERE 3550 SERIES DA T A SER VICE UNITS MODELS 3550 AND 3551 Quick Reference Document Number 3550-A2-GL10-10 March 1999 Product Documentation on the W orld Wide W eb We provide complete product documentation online.
2 Changing the Model 3550 DSU Hardware Straps The Model 3550 DSU has a switch located behind its diagnostic control panel (DCP). This switch contains two straps, one that controls the permissive or programmable connection when a DBM is installed, and one that controls the frame-to-signal grounds.
3 T able 1. Model 3550 DSU Switch Settings Switch Position Switch Setting Function S1 1 ON (default) Permissive V .32 DBM transmit output level of –9 dBm S1-1 Off Programmable V .
4 Installing the Model 3550 DSU Before installing the DSU, label the circuit breaker that protects the ac wall outlet, and make sure that it is set to ON. Then, proceed with the installation. Procedur e 1. Place the DSU in its planned location. Make sure the ventilation slots are not blocked.
5 Connecting the Model 3550 DSU to the NMS A 3600 Hubbing Device is required to connect the control DSU to the 6700 Series NMS. When connected to the NMS, the DSU can be controlled and configured from the NMS rather than from the DCP alone. Procedur e 1.
6 Connecting the Model 3550 DSU to the Dial Network (PSTN) If your DSU is equipped with a V .32 DBM, follow these steps. Procedur e 1. Plug either end of the dial (analog) interface cable into the DSU jack labeled BACKUP .
7 Connecting the Model 3550 DSU to the DDS (or LADS) Network NOTE: Before connecting the DSU to the DDS network, ensure that approved primary protectors have been installed on the circuit in accordance with Article 800 of the National Electric Code, NFP A 70, in the United States and Section 60 of the Canadian Electric Code, Part 1, in Canada.
8 Connecting the Model 3550 DSU to a DTE The DSU’s rear panel has both a 25-pin EIA-232-D/V .24 connector and a 34-pin ITU-T V .35 connector (used for higher operating speeds). Y ou can use either interface. When the unit is equipped with a TDM/Flex, either of these interfaces can be used as Port 1.
9 Connecting the Model 3550 DSU’ s Port 2 For the EIA-232 cable, install as described above. For the V .35 cable, install the V .35 adapter , then the V .35 DTE cable as follows. Procedur e 1. Reconfigure the port for a V .35 interface. See General Configuration Options on page 21.
10 T able 2. Model 3551 DSU Switch Settings Switch Position Switch Setting Function S1 1 ON (default) Permissive V .32 DBM transmit output level of –9 dBm S1-1 Off Programmable V .
11 T able 3. Model 3551 DSU Jumper Straps Strap Designation State of Jumper Strap Function J12 Left V .35 T est Mode Indication: Left — Enables V .35 T est Mode Indication (Pins 1 and 2). This is the factory default. Right — Disables V .35 T est Mode Indication (Pins 2 and 3).
12 Installing the Model 3551 DSU The initial installation procedure for the Model 3551 DSU requires the installation of a rear connector plate onto the rear of the COMSPHERE 3000 Series Carrier . After the initial installation, the DSU can be installed or uninstalled by simply removing the DSU from the carrier .
13 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.
14 7. At the rear of the carrier , connect the appropriate DTE interface cable (EIA-232-D or V .35) to the rear connector plate. For an EIA-232-D interface cable, connect the EIA-232-D cable to the top DTE connector on the rear connector plate. For the 25-pin V .
15 Connecting the Model 3551 DSU to the NMS A Model 3551 DSU is set up for network diagnostic connection through the shared diagnostic unit (SDU), which is installed in Slot 0 of the carrier . Refer to the COMSPHERE 3000 Series Carrier Installation Manual , Document No.
16 T o Connect the SDCP to a DSU For the carrier-mounted Model 3551 DSU, the SDCP must first be reconnected to the DSU. Once connected, the SDCP operates like a DCP .
17 Addressing the Unit A unique address must be assigned to each control and tributary DSU in your network. Y ou can assign an address within the range of 1 through 255. NOTES: — Do not assign the number 192 as a network address. This number is reserved as a broadcast address.
18 Power -Up Routine When power is applied, the DSU: H Determines what options (DBM or TDM/Flex) are installed, if any . H Runs a Device T est on itself and each of the installed options. During the tests, all indicators on the DCP light briefly and the message Power-Up T ests appears on the liquid crystal display (LCD).
19 Configuration Options Configuration options are accessed from the Configuration branch of the front panel menu. In the following tables, factory defaults are shown in boldface . If they differ from each other , defaults are shown for PTPC, PTPT , MPTC, and MPTT .
20 Diagnostic General Configuration Options V alue Position Cntrl (PTPC, MPTC), T rib (PTPT , MPTT) LinkConfg Pt-Pt (PTPC, PTPT), M-Pt (MPTC, MPTT) Resp Period 1 , 2, 10 T ribTimOut 0:10 (5 se.
21 General Configuration Options V alue DTE Port EIA232 , V .35 RTS Cntrl FrcOn (PTPC, PTPT , MPTC), DTE (MPTT) CTS Cntrl Std , = RTS, Delay , FrcOn AntiStream Disab , 1 – 100 sec LSD Lead S.
22 MUX Port Configuration Options V alue DTE Port EIA232 , V .35 Async → Sync Enab, Disab Async Rate =Sync , 1800, 1200, 600, 300, 150 AsyncBit/Char 6, 7, 8 , 9, 10 Stop Bits 1 , 2 Overspeed 1.
23 ! 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.
24 Notices ! W ARNING: .
25 If your DSU causes harm to the telephone network, the telephone company may discontinue your service temporarily . If possible, they will notify you in advance. But if advance notice is not practical, you will be notified as soon as possible. Y ou will be advised of your right to file a complaint with the FCC.
An important point after buying a device Paradyne 3551 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Paradyne 3551 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Paradyne 3551 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Paradyne 3551 you will learn all the available features of the product, as well as information on its operation. The information that you get Paradyne 3551 will certainly help you make a decision on the purchase.
If you already are a holder of Paradyne 3551, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Paradyne 3551.
However, one of the most important roles played by the user manual is to help in solving problems with Paradyne 3551. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Paradyne 3551 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
