Page 3 - que el aparato eléctrico sea operado.
2 BRTS-100 ISDN TEST SET NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 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 p...
Page 4 - NOM STATEMENT
3 NOM STATEMENT 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos,poniendo particular aten...
Page 5 - BRTS-100 ISDN TEST SET; TRADEMARKS USED IN THIS MANUAL
4 BRTS-100 ISDN TEST SET TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of thetrademark owners.
Page 6 - CONTENTS; Contents; Chapter
5 CONTENTS Contents Chapter Page 1. Specifications .....................................................................................................22. Introduction .......................................................................................................3 2.1 Overview ................
Page 7 - ISDN BRI
6 BRTS-100 ISDN TEST SET 1. Specifications Input/Output — (2) modular 8-pin jacks (included) ISDN Interface — S/T Line Type — ISDN BRI Nominal Data Rate — 192 kbps Power — 9-VDC battery Size — 7.3"H x 3.3"W x 1.1"D (18.5 x 8.3 x 2.8 cm) Weight — 11 oz. (311.8 g)
Page 8 - Technical Reference —
7 CHAPTER 2: Introduction 2. Introduction 2.1 Overview The BRTS-100 ISDN Test Set is a portable, hand-held, communication-linetester that helps you troubleshoot and verify ISDN S/T interface lines (seeFigure 2-1). The Test Set supports a variety of comprehensive tests designedto help telephone and I...
Page 10 - Connecting the Unit; COLOR
9 CHAPTER 3: Operation 3. Operation 3.1 Overview You can operate the BRTS-100 ISDN Test Set in a variety of modes. Selectthem by turning the selector dial on the left of the unit (see Figure 3-1). Theindicator lights (LEDs) on top of the unit indicate test results. The varioustest modes and indicato...
Page 12 - PASSIVE BUS
11 CHAPTER 3: Operation Figure 3-2. Connecting the Test Set for point-to-point or passive-bus configurations. 1 8 1 8 A B POINT-TO-POINT BRTS-100 ISDN TEST UNIT TO NT1 1 8 1 8 A B TERMINAL TO NT1 PASSIVE BUS BRTS-100 ISDN TEST UNIT
Page 14 - AUXILIARY POWER LIGHT —; Modes of Operation; LINE TEST —
13 CHAPTER 3: Operation NOTE: In reverse mode, the light indicators are opposite. AUXILIARY POWER LIGHT — Indicates the presence and polarity of auxiliary power. Green light — Auxiliary power present, normal polarity. Red light — Auxiliary power present, reverse polarity. No light — No auxiliary pow...
Page 15 - Test Configuration 1 — Point-to-Point — NT1; Connect the jack to either Port A or Port B of the Test Set.; POINT TO POINT — NT1
14 BRTS-100 ISDN TEST SET 4. Test Procedures 4.1 Overview This chapter gives you several suggested test procedures. However, it is byno means the only way to use the Test Set to isolate trouble or to verify lines. NOTE: The following procedures assume certain conditions exist (that procedures are fo...
Page 16 - CHAPTER 4: Test Procedures; Test Configuration 2 — Passive Bus; To put the terminal in the Passive Bus Test Configuration:; Test Configuration 3 — Point-to-Point — Terminal; To put the circuit in the Point-to-Point — Terminal configuration:; POINT TO POINT — TERMINAL
15 CHAPTER 4: Test Procedures Figure 4-2. Test Configuration 2. Test Configuration 2 — Passive Bus (Figure 4-2) To put the terminal in the Passive Bus Test Configuration: 1. Disconnect the terminal. NOTE: With a passive bus, the S/T interface may disrupt the operation of the other devices on the bus...
Page 17 - Put the Test Set in the LINE TEST test mode.
16 BRTS-100 ISDN TEST SET 4.2 Comprehensive Troubleshooting Procedure This troubleshooting guide is for the user who is either installing a new lineand wants to verify the S/T interface, or has a problem with an in-serviceISDN terminal. It is a comprehensive procedure which uses virtually allof the ...
Page 18 - Comprehensive Troubleshooting Flow Chart
17 CHAPTER 4: Test Procedures 12. Put the circuit into its normal operating configuration. (Connect all terminals to the S/T interface.) Figure 4-4. Comprehensive troubleshooting flow chart (1 of 2). A START PUT CIRCUIT IN POINT TO POINT CONFIGURATION (CONFIG. 1) CHECK POWER LINE TEST INITIATE TEST ...
Page 21 - • The terminal should be receiving proper power (see CHECK POWER,; CHECK POWER
20 BRTS-100 ISDN TEST SET Figure 4-5. Check power flow chart. 4.4 Check Loop This procedure checks for physical impairments in the S/T interface. SeeFigure 4-6 for an outline of the functions performed during this test. Beforeimplementing this procedure, you must meet the following prerequisites: • ...
Page 23 - CHECK LOOP
22 BRTS-100 ISDN TEST SET Figure 4-6. Check loop flow chart (1 of 3) TX & RX PAIRS ARE TRANSPOSED PUT CIRCUIT IN POINT TO POINT CONFIGURATION (CONFIG. 1) A CHECK LOOP LINE, LINE TEST INITIATE TEST STATUS? CHECK IF TX & RX PAIRS ARETRANSPOSED DONE GRN RED SWITCH TO REVERSE, INITIATE LINE TEST...
Page 26 - Put the Test Set in the CONTINUITY Test Mode.
25 CHAPTER 4: Test Procedures 10. Put the Test Set in the CONTINUITY Test Mode. 11. a. If the Green Test Status light goes on, there is a physical connection between the terminal and the NT1. b. If the Red Test Status light goes on, there is no continuity on the receive pair between the terminal and...
Page 30 - Remove all terminals from the passive bus.
29 CHAPTER 4: Test Procedures 4.6 Pair Reversal When you use the passive-bus configuration, it’s imperative that all thetransmit pairs (from terminal) be wired the same. That is to say, pins 3 and 6from each terminal on the bus must be wired to pins 3 and 6 of the NT1respectively. On a point-to-poin...
Page 35 - Terminal receiving; Monitor Assumes
34 BRTS-100 ISDN TEST SET Figure 4-11. Monitor flow chart. NO CHECKING FOR D CHANNEL ACTIVITY TRY TO INITIATE A CALL WITH TERMINAL “D” ACTIVITY INITIATE PUT CIRCUIT IN PASSIVE BUS CONFIGURATION (CONFIGURATION 2) MONITOR RED LIGHT FLASH? CHECK TERMINAL TERMINAL IS NOT SENDING ANYTHING CHECK SWITCH PA...
Page 36 - CHAPTER 5: Technical Reference; Technical Reference; The maximum current consumption in Phantom Power (PS1) and
35 CHAPTER 5: Technical Reference 5. Technical Reference 5.1 Power-Source Indicators The Phantom Feed light indicates the presence and polarity of battery power.In NORMal mode, the Test Set verifies that the terminal’s transmit pairs arepositive and its receive pairs are negative. In REVerse mode, t...
Page 37 - DIU—Deactivate Indication (Timer [32 ms] expired or Info 0 received
36 BRTS-100 ISDN TEST SET 5.2 Activation/Deactivation Modes The following information provides the steps that lead to an Active Link stateand subsequent Activation/Deactivation modes (Figure 5-2) between the TestSet (TE) and an NT device. The Test Set uses this Activation/Deactivationprocedure in Li...
Page 38 - an ACTIVE link with the NT1.; Receive Test
37 CHAPTER 5: Technical Reference Figure 5-3. Info frames. Line Test/Transmit (See Figure 5-4) Line Test and Transmit are exactly the same test. The test is conducted as follows. 1. Upon pressing the INITIATE button, the Test Set tries to establish an ACTIVE link with the NT1. 2. If the ACTIVE state...
Page 39 - ACTIVE link with the NT1.
38 BRTS-100 ISDN TEST SET Figure 5-4. Transmit and line test. D Activity (See Figure 5-5) The D Activity test is designed to run when the Test Set is bridged onto theS/T interface with an ISDN terminal. D Activity will monitor the Echo bitsfor any D channel data transmitted by the terminal. The D Ac...
Page 40 - OHMS
39 CHAPTER 5: Technical Reference Figure 5-6. CCITT 1.430. 5.3 AC Impedance As shown in Figure 5-6, CCITT recommends that the AC impedance at 20 to30 KHz should be greater than 2.5K ohms. To detect this, the Test Set putsan R-sense resistor in series with the device under test (Figure 5-7). A 21- KH...
Page 42 - When the Test Set is in TRACE TONE mode, the incoming frequency to
41 CHAPTER 5: Technical Reference 5.5 Speaker The incoming frequency to the speaker is divided by eight. Since ISDNsignals are transmitted at 96 KHz, it has to be reduced in order to be heardover the speaker. When the Test Set is in TRACE TONE mode, the incoming frequency to the speaker is divided b...
Page 43 - Appendix: Maintenance; Battery Replacement; Lift up on the battery cover and expose the 9-VDC battery.
42 BRTS-100 ISDN TEST SET Appendix: Maintenance The Test Set requires very little maintenance other than replacing the 9-VDCbattery periodically and possibly replacing one or both of the two 8-pin RJ-45-type jack connectors. NOTE: Average battery life is approximately 15 hours of continuous use. Bat...
Page 44 - Remove the five screws from the Test Set back cover.
43 APPENDIX: Maintenance 8-Pin Jack Replacement These connectors need to be replaced only when connections no longerpermit a secure-tight connection or when connectors are damaged. Instandard use, however, these connectors shouldn’t ever need to be replaced.Follow these steps and see Figure A-2. 1. ...
Page 45 - © Copyright 2002. Black Box Corporation. All rights reserved.
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