Black Box MT1000A-13 User Manual
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Black Box MT1000A-13 User Manual

Black Box MT1000A-13 User Manual

T1 and e1 fiber muxes
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T1 and E1 Fiber Muxes
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
SUPPORT
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
INFORMATION
Web site: www.blackbox.com • E-mail: info@blackbox.com
MARCH 2003
MT1000A-13
MT1000A-85
MT1000A-E1-13
MT1000A-E1-85

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  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC AND IC RFI STATEMENTS FEDERAL COMMUNICATIONS COMMISSION INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
  • Page 3 T1 AND E1 FIBER MUXES INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement) 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 para referencia futura. 3.
  • Page 4 TRADEMARKS/WARNINGS TRADEMARKS USED IN THIS MANUAL ST is a registered trademark of AT&T. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. WARNING These products are equipped with a laser diode. Please observe the following precautions: •...

  • Page 5: Table Of Contents

    3.5 Making Connections .............................19 3.5.1 Connector Location..........................19 3.5.2 Connecting the Channels on T1 Versions (MT1000A-85 and MT1000A-13) ......19 3.5.3 Connecting the Channels on E1 Versions (MT1000A-E1-85 and MT1000A-E1-13)....19 3.5.4 Connecting the Fiber Links on Both T1 and E1 Versions .............19 3.5.5 Connecting the Alarm Relays on Both T1 and E1 Versions ............19...

  • Page 6: Chapter Page

    6.1.1 Local Loopbacks in the Local Mux....................35 6.1.2 Local Loopbacks in the Remote Mux....................37 6.1.3 Fiber Optic Remote Loopback......................38 6.2 Troubleshooting ............................39 6.3 Calling Black Box ............................40 6.4 Shipping and Packaging ..........................40 Appendix. Interface Specifications..........................41 A.1 Channel Connectors .............................41 A.2 ALARMS Connector............................41 A.3 CONTROL Connector..........................42...

  • Page 7: Specifications

    1. Specifications Fiber Optic Interface (All Models) Standards — ITU-T Rec. G.956 Data Rates — MT1000A-85 and MT1000A-13: 6.176 Mbps, nominal; MT1000A-E1-85 and MT1000A-E1-13: 8.448 Mbps (E2 link), nominal Maximum Distance — MT1000A-85: Multimode up to 3 km (1.9 miles);...
  • Page 8 CHAPTER 1: Specifications T1 Channel Interfaces (MT1000A-85 and MT1000A-13) Standards — ITU-T Rec. G.703, G.824 Line Data Rate — 1.544 Mbps, nominal Line Encoding — B8ZS Line Impedance — 100 Ω balanced Transmit Levels — ±2.8V ± 10% Receive Levels — 0 dB to -2.4 dB Jitter Performance —...

  • Page 9: Introduction

    T1 AND E1 FIBER MUXES 2. Introduction 2.1 Overview The T1 and E1 Fiber Muxes (available in 850-nm and 1310-nm versions) combine four T1(1.544 Mbps) or E1 (2.048 Mbps) channels into a single fiber optic link that boasts data rates of either 6.176 Mbps (T1 versions) or 8.448 Mbps (E1 versions).

  • Page 10: Physical Description

    62.5/125-micron multimode fibers (typical attenuation -3.5 dB/km) and features a Vertical Cavity Surface Emitting Laser (VCSEL) type of transmitter. The interface on the MT1000A-13 and MT1000A- E1-13 offers operation over low-loss 9/125-micron single-mode fibers (typical attenuation -0.4 dB/km at 1300 nm, and 0.25 dB/km at 1550 nm) and features a laser transmitter.

  • Page 11: Channel Interface Characteristics

    Sensitivity Maximum Range T1 Versions MT1000A-85 (850 nm) 62.5/125 multimode VCSEL -18 dBm -32 dBm 3 km (1.9 miles) MT1000A-13 (1310 nm) 9/125 single-mode Laser -12 dBm -34 dBm 48 km (29.8 miles) E1 Versions MT1000A-E1-85 (850 nm) 62.5/125 multimode...

  • Page 12: Test And Diagnostic Capabilities

    CHAPTER 2: Introduction 2.3.4 T EST AND IAGNOSTIC APABILITIES Each mux comes with comprehensive test and diagnostics capabilities, including local loopback on the fiber link interface and remote loopbacks on each channel link. The remote loopbacks are activated on the remote units.

  • Page 13: Management And Monitoring

    Your mux package should contain the following items: • T1 or E1 Fiber Mux. • (1) DB9 male to DB9 female crossover cable. • (2) Power-supply cables. • Hands-free telephone headset. • This users’ manual. If anything is missing or damaged, please contact Black Box at 724-746-5500.

  • Page 14: Installation And Setup

    CHAPTER 3: Installation and Setup 3. Installation and Setup 3.1 Introduction The T1 and E1 Fiber Muxes, shipped completely assembled, can be installed as desktop units or mounted in 19" racks with the optional Rackmount Kit (RM1001). This chapter provides mechanical and electrical installation procedures for muxes, including the setting of the internal jumpers and connecting the mux’s various interfaces.

  • Page 15: Front And Rear Clearance

    T1 AND E1 FIBER MUXES 3.2.4 F RONT AND LEARANCE Allow at least 36 inches (91.4 cm) of frontal clearance for operator access. Also allow at least 4 inches (10.2 cm) clearance at the rear of the mux for your interface cable connections. When planning the routing of fiber optic cables, avoid sharp bends.
  • Page 16 CHAPTER 3: Installation and Setup WARNING • Only qualified and authorized service personnel should access the inside of the equipment. To avoid accidental electric shock, always disconnect the mux from the power line and from all the cables before removing the cover. •...
  • Page 17 T1 AND E1 FIBER MUXES Figure 3-1. Internal boards on MT1000A-85 and MT1000A-13. Table 3-1. Jumpers on MT1000A-85 and MT1000A-13. Jumper Description Values Factory Setting JP23 Controls the operation of the alarms, JP23-1 sets Channel 1; Channel whether they are ignored or processed. JP23-2 sets Channel 2;...
  • Page 18 CHAPTER 3: Installation and Setup Figure 3-2. Internal boards on MT1000A-85-E1 and MT1000A-13-E1. Channel Interface The nominal impedance of each interface is selected by a group of five jumpers. The four groups include: JP4, JP8, JP12, JP16, JP20 for Channel 1;JP3, JP7, JP11, JP15, JP19 for Channel 2;...
  • Page 19 T1 AND E1 FIBER MUXES Table 3-2. Jumpers on MT1000A-85-E1 and MT1000A-13-E1. Jumper Description Values Factory Setting JP23 Controls the operation of the alarms, JP23-1 sets Channel 1; Channel whether they are ignored or processed. JP23-2 sets Channel 2; Alarms JP23-3 sets Channel 3;...

  • Page 20: Making Connections

    Figure 3-3. Rear-panel connectors on T1 versions (top) and E1 versions (bottom). 3.5.2 C T1 V (MT1000A-85 MT1000A-13) ONNECTING THE HANNELS ON ERSIONS Each channel interface on the T1 muxes includes one RJ-45 connector. To connect the channels, connect each of the cables to the connector(s) corresponding to the interface in use.

  • Page 21: Connecting The Service Channel On Both T1 And E1 Versions

    T1 AND E1 FIBER MUXES 3.5.6 C E1 V ONNECTING THE ERVICE HANNEL ON ERSIONS To connect the service channel, connect the headset to the service channel socket located in the SYSTEM section of the front panel. 3.5.7 G ROUNDING The connection of the protective ground is accomplished through one of the pins of the power connector.

  • Page 22: Operation

    CHAPTER 4: Operation 4. Operation In this chapter, you’ll find detailed instructions for operating the T1 or E1 Fiber Mux. The information presented in this chapter includes a description of the mux’s front-panel controls and its operating procedures (turning on, front-panel indications, and turning off). 4.1 Front-Panel Indicators, Connectors, and Pushbutton Figure 4-1 shows the mux’s front panel.
  • Page 23 T1 AND E1 FIBER MUXES Table 4-1 (continued). Front-panel indicator, button, or connector and corresponding function. Number Indicator/Button/Connector Function SYSTEM CALL pushbutton When the service channel is enabled, pressing this button sends an alert to the remote operator to signal that the local operator wants to speak. SYSTEM headset jack Miniature jack for connection of headset to the service channel.

  • Page 24: Operating Instructions

    CHAPTER 4: Operation Table 4-1 (continued). Front-panel indicator, button, or connector and corresponding function. Number Indicator/Button/Connector Function SYNC LOSS CH3 indicator Lights when the corresponding channel interface reports loss of input signal. SYNC LOSS CH4 indicator CONTROL connector Connection to the management interface. 4.2 Operating Instructions 4.2.1 T URNING THE...

  • Page 25: Management

    T1 AND E1 FIBER MUXES 5. Management A terminal can be used for configuration, monitoring, and maintenance operations. At this time, the T1 or E1 Fiber Mux provides one terminal management mode (Monitor mode) with a supervisory ASCII ANSI terminal or a PC emulating an ASCII ANSI terminal connected directly to the mux’s CONTROL port.

  • Page 26: Entering The Terminal Session

    CHAPTER 5: Management If the autodetection still fails, reset the terminal emulation program and try a baud rate that differs from the one you used in step 2. Once you reset the baud rate, proceed to step 3 and begin the autodetection again. If this fails, call Technical Support for assistance.

  • Page 27: Status Monitoring

    T1 AND E1 FIBER MUXES Figure 5-3. Menu map. 5.2 Status Monitoring You can monitor the transmission status at the T1 or E1 and fiber optic interfaces (Interface Status) and the status of the mux’s functional blocks (Internal Status). 5.2.1 T1 IBER PTIC NTERFACE...

  • Page 28: Functional Blocks Status

    CHAPTER 5: Management 2. Choose option 1, Interface status. The Interface Status screen appears, displaying one of the following states for each T1 or E1 and fiber optic interface in the local and remote muxes (see Figure 5-5): • Data signal The input signal is detected on the respective line.

  • Page 29: Configuring The Mux

    T1 AND E1 FIBER MUXES INTERNAL STATUS ---------------- ----------------------------------------------------------------- Element Local Remote ----------------------------------------------------------------- Elastic store T1 channel 1 Valid Valid Elastic store T1 channel 2 Valid Valid Elastic store T1 channel 3 Valid Valid Elastic store T1 channel 4 Valid Valid Demultiplexer Valid...
  • Page 30 CHAPTER 5: Management CONFIGURATION ------------- Exit. View interface configuration. Change local interface configuration. Change remote interface configuration. Special configuration actions. Reset to default configuration. Enter a choice : Figure 5-7. Configuration screen. 2. Choose option 1, View interface configuration. The View Interface Configuration screen appears. The screen shows whether any loop is connected in the local or remote mux (see Figure 5-8).

  • Page 31: Setting/Resetting Loopbacks In The Local Mux

    T1 AND E1 FIBER MUXES 5.3.2 S ETTING ESETTING OOPBACKS IN THE OCAL 1. In the Configuration screen, choose option 2, Change local interface configuration. The Change Local Interface Configuration screen appears (see Figure 5-9). CHANGE LOCAL INTERFACE CONFIGURATION ------------------------------------ NOTE: To change the configuration of the interface, select it in the next format: decimal number from 1 to 6,...

  • Page 32: Invoking Special Actions

    CHAPTER 5: Management CHANGE REMOTE INTERFACE CONFIGURATION ------------------------------------ NOTE: To change the configuration of the interface, select it in the next format: decimal number from 1 to 6, 1 for T1 channel 1, 2 for T1 channel 2, ... , 5 for main link and 6 for backup link.

  • Page 33: Setting/Resetting The T1 Or E1 Remote Loopback

    T1 AND E1 FIBER MUXES To select the fiber optic link redundancy mode on muxes with the optional dual fiber link board installed: 1. In the Configuration screen, choose option 4, Special configuration actions. The Special Actions menu screen appears (see Figure 5-11). SPECIAL ACTIONS MENU -------------------- Exit.

  • Page 34: Changing The Password

    CHAPTER 5: Management RESET TO DEFAULT CONFIGURATION ------------------------------ NOTE : After performing this operation all interfaces will be set to NORMAL configuration. Exit. Reset to default configuration. Enter a choice : Figure 5-12. Reset to Default Configuration screen. 2. Choose option 1, Reset to default configuration, and type reset. 3.

  • Page 35: Viewing Hardware And Software Updates

    T1 AND E1 FIBER MUXES 5.5 Viewing Hardware and Software Updates To view the last hardware and software updates: 1. In the Main Fibermux menu, choose option 4, Version information. The Version Information screen appears (see Figure 5-14). VERSION INFORMATION ------------------- Hardware revision is Software version is...

  • Page 36: Testing And Diagnostics

    CHAPTER 6: Testing and Diagnostics 6. Testing and Diagnostics This chapter includes a description of the mux’s diagnostic tests and troubleshooting procedures. 6.1 Diagnostic Tests The mux supports three types of loopback connections: • local loopbacks in the local mux unit, •...
  • Page 37 T1 AND E1 FIBER MUXES Figure 6-1. T1 or E1 local loopback in the local mux. Figure 6-2. Fiber optic link local loopback in the local mux.

  • Page 38: Local Loopbacks In The Remote Mux

    CHAPTER 6: Testing and Diagnostics 6.1.2 L OCAL OOPBACKS IN THE EMOTE You can set two types of local loopback connections in the remote mux from a terminal hooked to the local mux: • T1 or E1 local, set for each T1 or E1 interface separately. •...

  • Page 39: Fiber Optic Remote Loopback

    T1 AND E1 FIBER MUXES Figure 6-4. T1 or E1 local loopback in the remote mux. 6.1.3 F IBER PTIC EMOTE OOPBACK When the fiber optic remote loopback is activated (remote loopback is configured from the Special Actions menu), the remote channel interfaces return the received signal via the transmit path of the channel. Simultaneously, the remote mux sends an unformed all-ones signal to all of the channels.

  • Page 40: Troubleshooting

    CHAPTER 6: Testing and Diagnostics 6.2 Troubleshooting If a problem occurs, check the displayed indications and refer to Table 4-1 in Chapter 4. Identify the trouble symptoms and perform the actions listed under Corrective Measure in the order given until the problem is corrected.

  • Page 41: Calling Black Box

    • Package it carefully. We recommend that you use the original container. • If you are shipping the mux for repair, make sure you include everything that came in the original package. Before you ship, contact Black Box to get a Return Authorization (RA) number.

  • Page 42: Appendix. Interface Specifications

    APPENDIX: Interface Specifications Appendix. Interface Specifications This appendix covers the specifications for the channel, ALARMS, CONTROL, and power connectors. A.1 Channel Connectors Each channel interface has one RJ-45 eight-pin connector. Connector wiring is listed in Table A-1. Table A-1. RJ-45 channel connector, pin functions. Designation Direction Function...

  • Page 43: Control Connector

    T1 AND E1 FIBER MUXES A.3 CONTROL Connector The front-panel supervisory port has a standard RS-232 DTE interface. The physical interface is a DB9 female connector, labeled CONTROL. Connector wiring is shown in Table A-2. Table A-2. CONTROL DTE connector, pin functions. Line Direction Data Carrier Detect (DCD)
  • Page 44 © Copyright 2003. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

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