Sonifex NICA X, Справочное руководство

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NICA X Reference Manual
52
A
PPENDIX
B R
EGULATORY
S
TATEMENT
B.1 - CE Marking
The CE marking on this product denotes conformity to the European Directive 89/336/EC relating to
Electromagnetic Compatibility and European Directive relating to The Low Voltage Directive.
B.2 - EMC Testing
Emissions Testing To EN55103-1
Immunity Testing To EN55103-2
Below are notes which must be taken into account when using the NICA X. The NICA X product has been fully
tested to the EMC standards as above in all Environments E1, E2, E3, E4, E5 at a NAMAS accredited test house.
Environment Description
E1 Residential
E2 Commercial and light industrial (for example theatres)
E3 Urban Outdoors
E4 controlled EMC environment (for example purpose built broadcasting and recording studios),
and the rural outdoors
E5 Heavy industrial and environments close to broadcast transmitters
For use in Environment E5 all cables connected to the unit must be below 1 metre in length.
B.3 - Electrostatic Discharge
For E5 the unit is tested to 8KV. This was shown to cause momentary loss of codec framing resulting in
momentary loss of audio, however the unit recovers normally. At 4KV tests there were no effects. (E1,E2,E3,E4)
RF Common Mode Immunity Induced on AC Mains cable.
For E5 only it is recommended that the AC mains be supplied through an RF Common Mode Filter.
B.4 - Radiated Immunity
For E5 only Radiated Immunity test levels showed that there could be an increase in the THD&N figures of the
audio at 10V/metre radiated field on the enclosure.
B.5 - Radiated Emissions
For all environments Radiated Emissions tests have shown that Ferrite clamps must be placed on cables connected
to the unit. These ferrite clamps are provided with the unit and must be fitted on any cable connected to the unit.
The Large ones must be fitted to X21 cables, while the small ones must be fitted to audio cables. The ISDN cable
will be supplied with an integral ferrite which must be used.
B.6 - TA Module
This product uses an internal Teltrend Midas plus module
B.7 - Safety & Approval Notice
The MIDAS PLUS module is approved "Host Independent" for connection to ISDN Basic rate Public
telecommunication network interfaces compatible with CCITT 1.420. The approval number issued by the British
Approvals Board for Telecommunications is AA605042.
It is designed to operate with a low v5V d.c. ± 5% (100mA) supply taken from the host power bus. Care
must be taken to ensure that the host is capable of supplying sufficient power for the module and all other
auxiliary apparatus drawing power from the host before you install the MIDAS PLUS module.
The interfaces with the host use Safe Extra Low voltages (SELV) only. SELV is a voltage that does not exceed
42.4V peak a.c. or 60V d.c. You are advised to ensure that this module is installed only in host equipment which
has a similar SELV interface.
In order to maintain the independent approval of the MIDAS PLUS module, it must be installed such that with the
exception of the host bus connector, a clearance distance of 4.00mm and a creepage distance of 5.0 (8.0) mm is
maintained between the Midas plus module and all other parts of the host, including any expansion cards, which
use or generate a voltage less than 250V (rms or dc); the creepage distance shown in brackets applies where the
local environment within the host is subject to conductive pollution or dry non conductive pollution which could
become conductive due to condensation. If in doubt, please consult a qualified engineer before installation.