RAD Data comm FOM-40 Specifiche Pagina 36
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Chapter 5 Troubleshooting and Diagnostics FOM-40 Installation and Operation Manual
5-2 Loopback Tests
Local Analog Loopback (LLB)
The local analog loopback (LLB) test checks the performance of the local FOM-40
modem, the local DTE, and the connections between them (see Figure 5-1). The
test is performed separately at the local and the remote site.
FOM-40
Line
Interface
DTE
Transmit
Receive
Data
Clock
Clock
Data
ANA
Pressed
Figure 5-1. Local Analog Loopback
To perform the local analog loopback test:
1. Press the ANA pushbutton.
The TEST LED on the FOM-40 front panel lights up. The modem's transmit
output is now connected to its own receiver.
2. Execute the local analog loopback with one of the following methods:
Configure the DTE to half-duplex operation and check the echoed data
stream.
Use an external BER tester to perform a BER test.
If the BER test indicates an error-free data stream, but the DTE test indicates
a fault, check that the cable between the DTE and FOM-40 is properly
connected. If the problem persists, follow the DTE manufacturer's test
procedures.
3. To isolate a communication line problem, perform the LLB loopback at the
opposite end. If both LLB tests are error-free, the fault is probably in the
communication line or in the line interfaces.
4. After completing the test or correcting the fault, press ANA pushbutton again
to restore it to the OFF position.
- High-Speed Fiber Optic 1
- High-Speed Fiber Optic Modem 3
- Limited Warranty 4
- General Safety Instructions 5
- Handling Energized Products 6
- FCC-15 User Information 8
- Warning 9
- Declaration of Conformity 10
- Quick Start Guide 11
- 2 Installing FOM-40 12
- Connecting the Cables 13
- 2. Operating FOM-40 14
- Contents 15
- Table of Contents 16
- Introduction 17
- Chapter 1 17
- Features 18
- 1.2 Physical Description 19
- 1.3 Functional Description 20
- 1.4 Technical Specifications 21
- Chapter 2 23
- Installation and Setup 23
- 2.2 Package Contents 24
- 2.3 Installing FOM-40 24
- Connecting the Power 26
- Chapter 3 27
- Operation 27
- 3.2 Turning On FOM-40 28
- 3.3 Normal Indications 29
- 3.4 Turning Off FOM-40 29
- 3-4 Turning Off FOM-40 30
- Chapter 4 31
- Configuration 31
- 4.2 FOM-40 Dip Switches 32
- FOM-40 Dip Switches 4-3 33
- 4-4 FOM-40 Dip Switches 34
- Chapter 5 35
- Troubleshooting and 35
- Diagnostics 35
- Local Analog Loopback (LLB) 36
- Loopback Tests 5-3 37
- 5.2 Internal BERT 38
- Modem Self-Test 39
- Two-BER Test 39
- FOM-40 FOM-40 40
- 5.4 Technical Support 41
- 5-8 Technical Support 42
- Chapter 6 43
- FOM-40/R Card 43
- 6-2 ASM-MN-214 Card Cage 44
- 6.2 Power Supply 45
- 6.3 FOM-40/R Front Panel 46
- FOM-40/R Front Panel 6-5 47
- Connecting the Interfaces 50
- Appendix A 51
- Connector Wiring 51
- 37 SC 53
- 20 RC 53
- A.3 T1 Interface Connector 54
- Connection 55
- B.1 Introduction 57
- B.2 IR-ETH/QV Options 58
- B.3 Technical Specifications 59
- Setting the DIP Switches 60
- LED Indicators 62
- Connecting the LAN 62
- Appendix C 63
- IR-G.703/CO Interface 63
- EXT Timing 64
- INT/RCV Timing 65
- D.1 Introduction 67
- EXT INT/LBT 68
- Customer Response Form 69
- Error Report 71
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Flowserve NRS 1-42 manuali
Manuali dei proprietari e guide per l'utente per Hardware Flowserve NRS 1-42.
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Contents
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Installation
10
LED flashes
13
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GESTRA GmbH
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Flowserve NRS 1-42 Manuale Utente (28 pagine)
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