Black Box MT1100C, MT1100A, MT1100A-DC, MT1101A, MT1101A-DC User Manual
...
MT1100A MT1100A-DC
JULY 2003
E1/T1 Rate Converters
MT1100C MT1101A
MT1101A-DC MT1102A
MT1102A-DC MT1102C
CUSTOMER
SUPPORT
INFORMATION
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
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
Contents
Chapter 1. Introduction
1.1 Overview..................................................................................................................... 1-1
Versions................................................................................................................................ 1-1
Application ...........................................................................................................................1-1
1.2 Functional Description................................................................................................. 1-2
Functional Block Diagram..................................................................................................... 1-2
Timing Reference..................................................................................................................1-2
Diagnostics ........................................................................................................................... 1-2
1.3 Technical Specifications............................................................................................... 1-3
Chapter 2. Installation and Setup
2.1 Site Requirements and Prerequisites ............................................................................ 2-1
2.2 Package Contents ........................................................................................................2-1
2.3 Configuring Standalone Unit........................................................................................ 2-2
Setting the Jumpers............................................................................................................... 2-2
Connecting the Interfaces .....................................................................................................2-5
Connecting the Power ..........................................................................................................2-5
Chapter 3. Operation
3.1 Front Panel Indicators .................................................................................................. 3-1
3.2 Operating Instructions ................................................................................................. 3-2
Turning On........................................................................................................................... 3-2
Operating the Unit ...............................................................................................................3-2
Turning Off........................................................................................................................... 3-2
Chapter 4. Troubleshooting and Diagnostics
4.1 Performing Local Analog Loopback.............................................................................. 4-1
Activating Local Analog Loopback .........................................................................................4-1
Deactivating Local Analog Loopback ..................................................................................... 4-2
4.2 Troubleshooting........................................................................................................... 4-2
Chapter 5. MT1100C, MT1102C Cards
5.1 Rack Nest 2/14 Card Cage ........................................................................................... 5-1
Line Connector.....................................................................................................................5-1
DTE Connector.....................................................................................................................5-1
5.2 Power Supply .............................................................................................................. 5-2
AC Supply ............................................................................................................................5-2
DC Supply............................................................................................................................5-2
Power Supply with Redundancy............................................................................................5-2
5.3 Front Panel .................................................................................................................. 5-3
5.4 Installing MT1100C, MT1102C.................................................................................... 5-5
Setting Internal Jumpers and Switches ................................................................................... 5-5
Installing MT1100C, MT1102C into the Rack Nest 2/14 Card Cage ....................................... 5-6
Connecting the Interfaces .....................................................................................................5-6
Appendix A. Interface Connector Wiring
i
Table of Contents
List of Figures
1-1. Typical Application................................................................................................................ 1-1
1-2. Block Diagram, E1 Converter................................................................................................. 1-2
1-3. Block Diagram, T1 Converter ................................................................................................ 1-2
2-1. Jumper Locations, E1 Converter ............................................................................................ 2-3
2-2. Jumper Locations, T1 Converter ............................................................................................ 2-3
3-1. E1 Converter Front Panel....................................................................................................... 3-1
3-1. T1 Converter Front Panel ...................................................................................................... 3-1
4-1. Running Local Loopback ....................................................................................................... 4-1
5-2. MT1100C, MT1102C Front Panels ........................................................................................ 5-3
5-5. Rack Nest 2/14 Front Panel ................................................................................................... 5-4
5-6. PCB Layout ........................................................................................................................... 5-5
List of Tables
2-1. Jumper Settings, E1 Converter ............................................................................................... 2-4
2-2. Jumper Settings, T1 Converter ............................................................................................... 2-4
3-1. Front Panel LED Indicators .................................................................................................... 3-1
4-1. Troubleshooting .................................................................................................................... 4-2
5-1. Jumper Settings ..................................................................................................................... 5-5
ii
Versions
Chapter 1
Introduction
1.1 Overview
MT1100A, MT1100A-DC, MT1100C, MT1101A, MT1101A-DC, MT1102A,
MT1102A-DC, MT1102C are interface converters. They convert unframed HDB3,
AMI or B8ZS data of ITU G.703 E1/T1 balanced or unbalanced interface into a
V.35 or RS-530 DTE interface.
The units operate at 1544 kbps or 2048 kbps. It extracts data and the clock from
the G.703 interface via a jitter attenuator to meet ITU G.823 requirements.
RIC-E1 acts as a line transceiver. It provides protection from over-voltage and
over-current stress caused by lightning, power crosses and other noise sources.
The following versions of the converters are available:
Application
• MT1100A – standalone T1 to V.35 converter, AC power supply
• MT1100A-DC – standalone T1 to V.35 converter, DC (-48 VDC) power supply
• MT1100C – converter card for Rack Nest 2/14 modem nest, T1 to V.35
• MT1102A – standalone T1 to RS-530 converter, AC power supply
• MT1102A-DC – standalone T1 to RS-530 converter, DC (-48 VDC) power
supply
• MT1102C – converter card for Rack Nest 2/14 modem nest, T1 to RS-530
• MT1101A – standalone E1 to V.35 converter, AC power supply
• MT1101A-DC – standalone E1 to V.35 converter, DC (-48 VDC) power supply.
Converters are typically used to connect between a G.703 network and a DTE.
The DTE can be a multiplexer, a bridge, a router etc. Figure 1-1 illustrates a typical
application.
Network
E1 or T1
MT 11 00A, MT 11 00A- D C,
MT 11 01A, MT 11 01A- D C,
MT1102A or MT1102A-DC,
Figure 1-1. Typical Application
V.35 or RS-530
DTE
Overview 1-1
Chapter 1 Introduction
1.2 Functional Description
Functional Block Diagram
Figure 1-2 shows the functional block diagram of MT1101A and MT1101A-DC.
Interchangable Interfaces
Txd
Rxd
Txclk
Rxclk
Loss
Ts t
Ana
X
LIU
Transformers
Clock
Gen.
Select
IMP
Tx & Rx Code
AMI
HDB3
Unbalanced
Balanced
Unbalanced
BNC
RJ - 45
BNC
P. S .
Figure 1-2. Block Diagram, E1 Converter
Figure 1-2 shows the functional block diagram of MT1100A, MT1100A-DC,
MT1100C, MT1102A, MT1102A-DC, and MT1102C.
X
Txd
Interchangable Interfaces
Rxd
Txclk
Transformers
RJ - 45
Timing Reference
Converters support three clock modes:
• Internal, derived from its internal oscillator
• External, supplied by the attached DTE
• Receive, recovered from the received line signal.
Diagnostics
Converters support a V.54 (loop 3) local loopback activated by the internal jumper
of the standalone unit, front panel pushbutton of the rack card or via
corresponding pin of the DTE interface connector. For more information, refer to
Chapter 4.
Rxclk
Loss
Ts t
Ana
LIU
Tx & Rx Code
AMI
B8ZS
Clock GEN.
Figure 1-3. Block Diagram, T1 Converter
P. S .
1-2 Functional Description
Chapter 1 Introduction
1.3 Technical Specifications
E1 Interface
T1 Interface
Coding
Framing
Bit Rate
Impedance
RCV Signal Level
XMT Signal Level
Connectors
Return Loss
Coding
Framing
Bit Rate
Impedance
RCV Signal Level
HDB3 or AMI
Unframed
2.048 Mbps
120Ω, balanced
75Ω, unbalanced
0 to -10 dB
3V (±10%), balanced
2.37V (±10%), unbalanced
RJ-45, 8-pin, balanced
Two BNC coaxial, unbalanced
Better than 15 dB
B8ZS, AMI
Unframed
1.544 Mbps
100Ω, balanced
0 to -10 dB
DTE Interface
Timing
Indicators
XMT Signal Level
Connector
Return Loss
Type
Control Signals
PWR (green)
TXD (yellow)
RXD (yellow)
LOS (red)
3V (±10%), balanced
RJ-45, 8-pin, balanced
Better than 15 dB
• V.35: 34-pin, female
• RS-530: 25-pin, D-type female
• CTS follows RTS
• DCD follows E1 state
• DSR is constantly ON
Derived from three alternative sources:
• Internal oscillator
• External, from the attached DTE
• Receive, derived from the received signal
On – Power on
On – Data is being transmitted to the link
On – Data is being received from the link
On – No E1/T1 data is received from the link
Technical Specifications 1-3
TST (red)
On – The local loopback is active
Chapter 1 Introduction
Diagnostics
Power
Physical
Local Loopback
AC Source
DC Source
Power Consumption
Fuses
Standalone
Height
Width
Depth
Complies with ITU V.54 (loop 3)
Activated by:
• Internal jumper (standalone unit)
• Front panel pushbutton (rack card)
• DTE circuit 141
100 to 240 VAC (± 10%), 50 or 60 Hz
-48 VDC (-42 to -60 VDC)
• Standalone: 3W, max
• Card: 5.2W
Standalone: 250 mA 250V slowblow
Card: 500 mA 250V slowblow
39.5 mm / 1.5 in
190 mm / 7.4 in
160 mm / 6.2 in
Environment
Weight
Card
Temperature
Humidity
0.6 kg / 1.3 lb
Fits one slot in the Rack Nest 2/14
0–50°C (32–122°F)
Up to 90%, non-condensing
1-4 Technical Specifications
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