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Chapter 2 Installation and Setup FOM-E1/T1 Installation and Operation Manual
2-2 Installation and Setup
2.3 Installation and Setup
FOM-E1/T1 is a standalone device intended for tabletop or bench installation. It is
delivered completely assembled. No provision is made for bolting the unit on the
tabletop.
To install FOM-E1/T1:
1. Determine the required configuration of FOM-E1/T1 and set the internal
jumpers accordingly (see Configuring FOM-E1/T1 below).
2. Connect the line (see Connecting the Fiber Optic Interface below).
3. Connect the DTE (see Connecting the E1/T1 Interface below).
4. Connect power to the unit (see Connecting the Power below).
Access to the inside of the equipment is permitted only to authorized and
qualified service personnel.
To avoid accidental electric shock, always disconnect the interface cables and
the power cord before removing the unit from its casing.
Line voltages are present inside FOM-E1/T1 when it is connected to power
and/or to the lines. Moreover, under external fault conditions dangerous
voltages may appear on the lines connected to the unit.
Any adjustment, maintenance, and repair of the opened instrument under
voltage should be avoided as much as possible and, when inevitable, should
be carried out only by a skilled technician who is aware of the hazard involved.
Capacitors inside the instrument may remain charged even after the
instrument has been connected from its power supply source.
FOM-E1/T1 contains components sensitive to electrostatic discharge (ESD). To
prevent ESD damage, avoid touching the internal components. Before moving
jumpers, touch the FOM-E1/T1 frame.
Configuring FOM-E1/T1
This section describes how to configure FOM-E1/T1 for a typical application.
Figure 2-1 illustrates the layout of the FOM-E1/T1 printed-circuit board. Table 2-1
provides details on the functions of the internal jumpers and switches, and their
default settings.
To configure FOM-E1/T1:
1. Disconnect all the cables connected to FOM-E1/T1.
2. Release the two rear panel screws and use them as levers to slide out the PCB
interior of the unit.
3. Select the E1/T1 electrical interface: E1 balanced, E1 unbalanced or T1 balanced by
setting the JP2, JP4, JP5, JP6, JP7 and JP8 jumpers to appropriate position.
4. If using E1 unbalanced interface, connect the BNC shield to the chassis ground by
setting the SW1 and SW2 switches to the CONNECTED position.
If you are using balanced E1/T1 connection, set the SW1 and SW2 switches to the
FLOATING position.
Warning
Caution
- FOM-E1/T1 1
- 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. Operating FOM-E1/T1 12
- Contents 13
- List of Figures 14
- List of Tables 14
- Chapter 1 15
- Introduction 15
- Application 16
- Features 16
- 1.2 Physical Description 17
- 1.3 Functional Description 17
- Signal Conversion 18
- Data/Clock Recovery 18
- Data Transfer 18
- 1.4 Technical Specifications 19
- 1-6 Technical Specifications 20
- Chapter 2 21
- Installation and Setup 21
- 2.3 Installation and Setup 22
- Fiber Optic 23
- Interface Board 23
- Connecting the Interfaces 24
- Connecting the Power 25
- Connecting AC Power 26
- Connecting DC Power 26
- Chapter 3 27
- Operations 27
- 3.2 Operating Instructions 28
- Chapter 4 29
- Testing and Diagnostics 29
- 4.2 Diagnostic Tests 30
- Chapter 5 33
- FOM-E1/T1/R Card Version 33
- 5.2 Power Supply 34
- DC Supply 35
- Power Supply Redundancy 35
- 5.3 FOM-E1/T1/R Front Panel 36
- Balanced E1/T1 38
- Unbalanced E1 38
- Alarm Relay 38
- Appendix A 39
- Interface Connector 39
- Specifications 39
- A.2 FOM-E1/T1/R Modem Card 40
- Customer Response Form 41
- Error Report 43
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