User Manual

To reduce the risk of fire, use only No. 26 AWG or larger telecommunication
line cords.
Pour réduire les risques s’incendie, utiliser seulement des conducteurs de
télécommunications 26 AWG ou de section supérieure.
Some ports are suitable for connection to intra-building or non-exposed wiring or
cabling only. In such cases, a notice will be given in the installation instructions.
Do not attempt to tamper with any carrier-provided equipment or connection hardware.
Electromagnetic Compatibility (EMC)
The equipment is designed and approved to comply with the electromagnetic
regulations of major regulatory bodies. The following instructions may enhance the
performance of the equipment and will provide better protection against excessive
emission and better immunity against disturbances.
A good earth connection is essential. When installing the equipment in a rack, make
sure to remove all traces of paint from the mounting points. Use suitable lock-washers
and torque. If an external grounding lug is provided, connect it to the earth bus using
braided wire as short as possible.
The equipment is designed to comply with EMC requirements when connecting it with
unshielded twisted pair (UTP) cables. However, the use of shielded wires is always
recommended, especially for high-rate data. In some cases, when unshielded wires are
used, ferrite cores should be installed on certain cables. In such cases, special
instructions are provided in the manual.
Disconnect all wires which are not in permanent use, such as cables used for one-time
configuration.
The compliance of the equipment with the regulations for conducted emission on the
data lines is dependent on the cable quality. The emission is tested for UTP with 80 dB
longitudinal conversion loss (LCL).
Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide
secondary protection against surges on the data lines. Primary protectors should be
provided in the building installation.
The equipment is designed to provide adequate protection against electro-static
discharge (ESD). However, it is good working practice to use caution when connecting
cables terminated with plastic connectors (without a grounded metal hood, such as flat
Caution
Attention