ISO 21214:2015使用820 nm至1010 nm的红外系统确定空中接口。 该国际标准为使用红外系统的ITS部门的中距离和中高速无线通信提供协议和参数。 以下设备之间的准连续、长时间或短时间通信需要此类链路: -车辆和路边； -车辆之间； -移动设备和固定基础设施点之间； -在中远程范围内。 车辆可能在移动或静止。 在可行的情况下，本国际标准通过参考适当的现有国际标准制定，并经选择采用。提供了所需的区域差异。 适当考虑并利用适当通信系统的任何相关部分，如全球定位系统（GPS）、数字音频广播（DAB）、数字视频广播（DVB）、无线局域网（RLAN）、数字数据广播（DDB）、TETRA、FM副载波、移动宽带系统（MBS、W-ATM）、互联网协议和DSRC。 ISO 21214:2015 -支持1 Mbit/s到128 Mbit/s的数据速率（也可以支持更高的数据速率）， -支持车辆速度至少达到200 km/h（关闭速度可能是该值的两倍）， -定义或参考与链路运行相关的环境参数， -支持100米的通信距离（也可以支持300米到1000米的更长通信距离）， -支持以毫秒为单位的延迟和通信延迟， -符合区域/国家监管参数，以及 -可能支持其他区域/国家参数（如适用）。 具体应用要求不在本国际标准的范围内。这些要求将在CALM管理和上层标准以及应用标准中定义。 本国际标准不包括特定于应用的上层，但将由应用标准（可能不是特定于技术）驱动。

ISO 21214:2015 determines the air interface using infrared systems at 820 nm to 1 010 nm. The International Standard provides protocols and parameters for medium range and medium to high speed wireless communications in the ITS sector using infrared systems. Such links are required for quasi-continuous, prolonged, or short communications between the following: - vehicles and the roadside; - between vehicles; - between mobile equipment and fixed infrastructure points; - over medium and long ranges. Vehicles may be moving or stationary. Wherever practicable, this International Standard has been developed by reference to suitable extant International Standards, adopted by selection. Required regional variations are provided. Due account is given to, and made use of, any relevant parts of appropriate communications systems such as Global Positioning Systems (GPS), Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB), Radio Local Area Networks (RLANs), Digital Data Broadcasting (DDB), TETRA, FM subcarrier, Mobile Broadband Systems (MBS, W-ATM), Internet Protocols, and DSRC. ISO 21214:2015 - supports data rates of 1 Mbit/s up to 128 Mbit/s (it may also support higher data rates), - supports vehicle speeds to a minimum of 200 km/h (closing speeds could be double this value), - defines or reference environmental parameters relevant to link operation, - supports communication distances to 100 m (it may also support longer communication distances of 300 m to 1 000 m), - supports latencies and communication delays in the order of milliseconds, - is compliant to regional/national regulatory parameters, and - may support other regional/national parameters, as applicable. Application specific requirements are outside the scope of this International Standard. These requirements will be defined in the CALM management and upper layer standards and in application standards. Application specific upper layers are not included in this International Standard but will be driven by application standards (which may not be technology specific).