83
SPECIFICATIONS & PERFORMANCE
Requirements for the EXTERNAL DEVICE
The external device connected to the analog and digital interfaces must comply with the
respective IEC or ISO standards (e.g. IEC 60950 for data processing equipment and IEC
60601-1 for medical equipment).
Furthermore all configurations shall comply with the requirements for medical electrical sys-
tems (see IEC 60601-1-1).
Anybody connecting additional equipment to medical electrical equipment configures a medical
system and is therefore responsible that the system complies with the requirements for medial
electrical systems. Attention is drawn to the fact that local laws take priority over the above
mentioned requirements. If in doubt, contact your dealer or TOPCON (see the back cover).
Recommended separation distance between
portable and mobile RF communications equipment and the TRC-NW8F/TRC-
NW8F plus
The TRC-NW8F/TRC-NW8F plus is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the TRC-NW8F/TRC-
NW8F plus can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the TRC-NW8F/
TRC-NW8F plus as recommended below, according to the maximum output power of the com-
munications equipment.
Rated maximum
output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150kHz to 80MHz 80MHz to 800MHz 800MHz to 2.5GHz
0.01 0.12 0.12 0.23
0.10.380.380.73
11.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended separa-
tion distance d in meters (m) can be estimated using the equation applicable to the frequency of
the transmitter, where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
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