Print Date:113/05/21 18:52

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1、Regulations
The regulations hereunder are stipulated pursuant to paragraph 1 of the Telecommunications Act Article 42 .
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2、Scope
2.1 Radio-frequency Telecommunications Terminal Equipment which operates within the band 2400-2483.5MHz。
2.2 Radio-frequency Telecommunications terminal equipment which utilizes frequency hopping or digitally modulated techniques.
2.3 The trunked Wireless Public Branch eXchange equipment is beyond the scope of this specification.
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3、References
3.1 PSTN01「 Technical Specifications for Terminal Equipment for Connection to Public Switched Telephone Network 」。
3.2 LP0002「 Low-power radio-frequency devices technical specifications 」。
3.3 FCC 47 CFR Part 15 Subpart C-Intentional Radiators。
3.4 CNS 13438 C6357「Limits and methods of measurement of radio interference characteristics of information technology equipment」。
3.5 CNS 14336 C5268「Safety of information technology equipment」。
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4、General requirements
4.1 The Radio-frequency Telecommunications terminal equipment shall be independent of Type I telecommunications enterprise equipment and is prohibited to modify from the latter.
4.2 The Radio-frequency Telecommunications terminal equipment whenever connected to public telecommunications network, shall not jeopardize switching, test, transmission and billing performance and function of public telecommunications network.
4.3 The Radio-frequency Telecommunications terminal equipment while not in-use or stop due to malfunction, shall not influence the normal function of other equipment parallel connected.
4.4 The Radio-frequency Telecommunications terminal equipment shall be self-contained with no external or readily accessible controls which may be adjusted to permit operation in a manner inconsistent with the provisions
4.5 The Radio-frequency Telecommunications terminal equipment must not transmit damped waves.
4.6 The Radio-frequency Telecommunications terminal equipment must not be altered by changing the frequency bands, increasing emission power, adding external antenna, and other features and functions the they are originally designed to.
4.7 The operation of the Radio-frequency Telecommunications terminal equipment is subject to the conditions that no harmful interference is caused and that interference must be accepted that may be caused by the operation of an authorised radio communications, or industrial, scientific and medical (ISM) equipment. If interference is caused, the user must stop operating the device immediately and can't re-operate it until the harmful interference is clear.
4.8 The Radio-frequency Telecommunications terminal equipment on the market must be accompanied with operation manual or instructions. The operation manual must contain all the necessary information for proper installation and operation of the device by the users. The necessary contents are:
4.8.1 Without grant permission, the frequency change, power enhance or alter of original design characteristic as well as function by company, enterprise, or user for approved Radio-frequency Telecommunications terminal equipment is not allowed.
4.8.2 Radio-frequency Telecommunications terminal equipment shall not influence aircraft security and interfere legal communications; If found, shall cease operating immediately until no interference is achieved.
Above mentioned Legal Communications is defined as radio communications operation follows "Telecommunications Act".
4.8.3 The imported, manufactured Radio-frequency Telecommunications terminal equipment violate this regulations due to unapproved use or radio frequency, electrical power modified. The company, enterprise, or user is not only punished as per regulations of "Telecommunications Act", but also revoked of approval certificate.
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5、Test items and conformance standards
5.1 Test items and conformance standards of wireless interface:
5.1.1 Operation within the bands 2400-2483.5 MHz
5.1.2 The maximum output power:
For frequency hopping systems in the 2400-2483.5 MHz band employing at least 75 hopping channels and all digitally modulated system: 1 watt. For all other frequency hopping systems in the 2400-2483.5 MHz band: 0.125 watts.
5.1.3 Bandwidth, channel number and other limitations:
5.1.3.1 Frequency hopping system:
5.1.3.1.1 Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. If at least 75 hopping frequencies are used. The maximum 20 dB bandwidth of the hopping channel is 1 MHz. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hopping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals.
5.1.3.1.2 Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 non-overlapping channels. The average time of occupancy on any channel shall not be greater than 0.4. Frequency hopping systems which use fewer than 75 hopping frequencies may employ intelligent hopping techniques to avoid interference to other transmissions.
5.1.3.1.3 Frequency hopping spread spectrum systems are not required to employ all available hopping channels during each transmission. However, the system, consisting of both the transmitter and the receiver, must be designed to comply with all of the regulations in this section should the transmitter be presented with a continuous data (or information) stream. In addition, a system employing short transmission bursts must comply with the definition of a frequency hopping system and must distribute its transmissions over the minimum number of hopping channels specified in the 5.1.3.1.2.
5.1.3.1.4 The incorporation of intelligence within a frequency hopping spread spectrum system that permits the system to recognize other users within the spectrum band so that it individually and independently chooses and adapts its hopsets to avoid hopping on occupied channels is permitted. The coordination of frequency hopping systems in any other manner for the express purpose of avoiding the simultaneous occupancy of individual hopping frequencies by multiple transmitters is not permitted.
5.1.3.2 Digital modulation techniques:
5.1.3.2.1 For Digitally modulated system, the minimum 6 dB bandwidth shall be at least 500 kHz.
5.1.3.2.2 If Digitally modulated techniques system is utilized, at least 11 channels for end user to select individual and independent channel shall be furnished.
5.1.3.2.3 For digitally modulated systems, the peak power spectral density conducted from the intentional radiator to the antenna shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission.
5.1.3.3 The hybrid system:
The hybrid systems employ a combination of both frequency hopping and digital modulation techniques.
5.1.3.3.1 The frequency hopping operation of the hybrid system, with the digitally modulated operation turned off, shall have an average time of occupancy on any frequency not to exceed 0.4 seconds within a time period in seconds equal to the number of hopping frequencies employed multiplied by 0.4.
5.1.3.3.2 The digital modulation operation of the hybrid system, with the frequency hopping turned off, shall comply with the power density requirements of those specified in 5.1.3.2.3.
5.1.4 RF Conducted emission outside the frequency band:
In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement. In addition, radiated emissions which fall in the restricted bands, as defined in "Low-power radio-frequency devices technical specifications"(LP0002) Section 2.7 must also comply with the radiated emission limits specified in Table I.
5.1.5 Radiated emission outside the frequency band:
Except as specified in the Section 5.14. The emissions outside the frequency band from an intentional radiator shall not exceed the field strength levels specified in the following table:
5.1.6 Antenna requirement:
Radio frequency TTE transmitter or receiver shall utilize a permanently, half- permanently attached antenna or uses a unique coupling at the antenna and at any cable connector between the transmitter and the antenna. The antenna shall be omnidirectional type. The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector or other than authorized is prohibited. Such a standard connectors are for example: BNC, F type, N type, M type, UG type, RCA, SMA, SMB, and other standard type antenna connectors.
5.1.7 Security code:
It is permissible to provide at least 1000 possible different combinations for both base and handset unit to automatically select security code. (a Declaration of Conformance should be provided by the manufacturer)
5.1.8 Check list for wireless interface is as Table II below:
5.2 PSTN interface and conformance standards is listed as Table III。 Wireline interface test items shall follow PSTN01[Technical Specifications for Terminal Equipment for Connection to Public Switched Telephone Network].
5.3 In terms of Telecommunications terminal equipment with PLMN interface, the test items and conformance standards shall refer to technical specification from PLMN01 to PLMN08.
5.4 EMC:Quote from CNS 13438 C6357「 Limits and methods of measurement of radio interference characteristics of information technology equipment 」 。
5.5 Safety:Quote from CNS 14336 C5268「 Safety of information technology equipment 」
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6. Test standards:
The relevant measurement method on the conducted and radiated emission follow [Low power radio-frequency devices technical specifications] (LP0002) Chapter 5; In addition, Measurement guideline on Direct Sequence Spread Spectrum and Frequency Hopping Spread Spectrum follow [Low power radio-frequency devices technical specifications] Attachment II&III.
Data Source:NCC / Law Source Retrieving System Laws And Regulations