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Connection of Data and Telecommunications Cables
Data and telecommunication interfaces are classified according to their safety status.
The following table lists the status of several standard interfaces. If the status of a given port differs from
the standard one, a notice will be given in the manual.
Ports Safety Status
V.11, V.28, V.35, V.36, RS-530,
X.21, 10 BaseT, 100 BaseT,
Unbalanced E1, E2, E3, STM, DS-2,
DS-3, S-Interface ISDN, Analog voice
E&M
SELV Safety Extra Low Voltage:
Ports which do not present a safety hazard. Usually
up to 30 VAC or 60 VDC.
xDSL (without feeding voltage),
Balanced E1, T1, Sub E1/T1
TNV-1 Telecommunication Network Voltage-1:
Ports whose normal operating voltage is within the
limits of SELV, on which overvoltages from
telecommunications networks are possible.
FXS (Foreign Exchange Subscriber) TNV-2 Telecommunication Network Voltage-2:
Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are not possible. These
ports are not permitted to be directly connected to
external telephone and data lines.
FXO (Foreign Exchange Office), xDSL
(with feeding voltage), U-Interface
ISDN
TNV-3 Telecommunication Network Voltage-3:
Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are possible.
Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a
qualified safety engineer.
Always make sure that the equipment is grounded before connecting telecommunication cables. Do
not disconnect the ground connection before disconnecting all telecommunications cables.
Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables.
Extra caution should be exercised during thunderstorms.
When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The
earthing and bonding of the ground connections should comply with the local codes.
The telecommunication wiring in the building may be damaged or present a fire hazard in case of
contact between exposed external wires and the AC power lines. In order to reduce the risk, there are
restrictions on the diameter of wires in the telecom cables, between the equipment and the mating
connectors.
- Limited Warranty 4
- General Safety Instructions 5
- Handling Energized Products 6
- FCC-15 User Information 8
- Declaration of Conformity 10
- Quick Start Guide 11
- Contents 13
- Table of Contents 14
- Chapter 1 15
- Introduction 15
- Features 16
- Options 16
- 1.2 Physical Description 17
- 1.3 Functional Description 18
- G.703 DTE Interface 20
- 1.4 Technical Specifications 21
- (Complies with the 22
- V.54 Standard) 22
- Table 0-1 Approximate Range 23
- 2.1 Introduction 25
- 2.3 Package Contents 25
- 2.4 Equipment Needed 26
- Warning 27
- 2.6 Connecting the Cables 30
- 3.1 Power On 31
- 3.2 Controls and Indicators 31
- Figure 4-5) 33
- Figure 4-3 33
- 3.3 Operation 34
- 3.4 Power Off 34
- 4.1 Loop Test Procedure 35
- 4.3 Modem Self Test 37
- Remote Digital Loopback 38
- Local Digital Loopback 39
- 4.7 Technical Support 41
- 4-8 Technical Support 42
- 5.1 ASM-MN-214 Card Cage 43
- 5-2 ASM-MN-214 Card Cage 44
- 5.2 ASM-20/R Card Version 45
- 5.3 Power Supply 46
- Installation 5-5 47
- 5.4 Installation 48
- MODEM MODEM 49
- Line Connector 50
- LAN Installation 52
- Switch Settings 52
- LED Indicators 52
- B.1 Introduction 55
- B.2 General Description 55
- B.3 EXT Mode 56
- B.4 INT/RCV Mode 57
- B-4 INT/RCV Mode 58
- C.1 Description 59
- C.2 IR-X.21B Connectors 59
- Pin Assignment 60
- C.4 EXT Mode 61
- C.5 INT/RCV Mode 62
- Appendix D 63
- DTE Interface Connectors 63
- D-4 66
- Appendix E 67
- Connection to RS-422 67
- F.1 Unit Case 69
- Fastening 70
- Long Bracket 70
- Customer Response Form 73
- Error Report 75
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