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110
GENERAL INFORMATION ON USAGE AND MAINTENANCE
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 60950-1 for data processing equipment and IEC 60601-1 for medical
equipment).
Anybody connecting additional equipment to medical electrical equipment configures a medical sys-
tem and is therefore responsible that the system complies with the requirements for medical electrical
systems. Attention is drawn to the fact that local laws take priority over the above mentioned require-
ments. If in doubt, contact your dealer or TOPCON (see the back cover).
Recommended separation distance between
portable and mobile RF communications equipment and the TRK-2P
The TRK-2P is intended for use in an electromagnetic environment in which radiated RF disturbances are con-
trolled. The customer or the user of the TRK-2P can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment (transmitters) and the TRK-2P
as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150kHz to 80MHz
d = 1.2
80MHz to 800MHz
d = 1.2
800MHz to 2,5GHz
d = 2.3
0, 01 0, 12 0, 12 0, 23
0, 1 0, 38 0, 38 0, 73
11.21.22.3
10 3.8 3.8 7.3
100 121223
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in
metres (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 absorp-
tion and reflection from structures, objects and people.
P
P
P
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