ONE100 Chapter 1
Installation Guide Safety Instructions
13
1.4 Connection Precautions
ESD WARNING
The circuit boards are sensitive to electrostatic discharges (ESD) and should be handled with care. It is
advisable to ensure an optimal electrical contact between yourself, the working area and a safety ground
before touching any circuit board. Take special care not to touch any component or connector on the
circuit board.
The connectors of the ONE100 should only be connected to the following circuit types:
• Inside building circuit: Circuit remaining inside building and not subject to telecom network primary
nor secondary lightning strikes.
• Outside building circuit: Circuit routed going outside building and possibly subject to telecom network
secondary lightning strikes.
• SELV or Safety Extra Low Voltage: Inside building circuit designed to not exceed safe voltage value.
•TNV or Telecom Network Voltage: User's accessible internal circuit designed to not exceed specified
voltage limits:
- TNV-2: Inside building circuit exceeding SELV voltage limits but respecting TNV voltage limits
- TNV-3: Outside building circuit exceeding SELV voltage limits but respecting TNV voltage limits
Interface type Interface identification Connector type Circuit type
RS232
1
1. V.24
Console RJ45 SELV
SHDSL SHDSL RJ45 TNV-3
LAN SWITCH E0-0/0 ... E3-0/3
2
2. 4 port Ethernet switch with 10/100 Base T ports
RJ45 SELV
ETH 1/0 RJ45 SELV
Earth stud Clinching stud/screw
hole
Earth
FXS FXS L0-5/0 ... L7-5/7
3
3. The actual number of FXS ports depends on the version of the device.
RJ45 TNV-2, TNV-3
4
4. If an FXO port is present on the device, then the first FXS port beside the FXO port is TNV-3,
the other FXS ports are TNV-2.
If no FXO port is present, all FXS ports are TNV-2.
FXO FXO L5-5/4
FXO L8-5/8
RJ45 TNV-3
T0/S0 ISDN BRI L0-5/0 ... L7-5/7
5
5. The actual number of BRI ports depends on the version of the device.
RJ45 SELV
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