Многофункциональная антенная логическая сборка FAW: The 3 Основные MSU для полного подключения

Добро пожаловать в это важное техническое руководство по Многофункциональная антенная логическая сборка FAW. This component is the primary communication hub for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. It serves as the vehicle’s “ears,” receiving and transmitting critical data and broadcast signals, including AM/FM radio, GPS/BDS navigation, and 4G/LTE telematics for fleet management.

The “Логическая сборка” designation is key. This is not a simple, single-function antenna. The Многофункциональная антенная логическая сборка FAW (P/N 7903010-61B) is a sophisticated, co-located system that houses multiple, independent antenna elements within a single, aerodynamic, and waterproof housing. Этот “логика” of integration is critical for modern vehicle design, reducing drilling, simplifying cable runs, and protecting sensitive electronics from the elements.

This in-depth guide is a crucial resource for technicians and parts specialists. Мы разберем всю Многофункциональная антенная логическая сборка FAW into its three primary Minimum Serviceable Units (МГУ): the main ‘Multifunctional antenna assy’ сам, the specialized ‘Harness fixing tape’ (3724152-61Б) used to secure its delicate cables, and the single ‘Cross recessed pan head screw’ (Q2140628) that provides its critical ground-plane connection.

МГУ 1: The “Черный ящик” Logic of the Antenna (7903010-61Б)

Этот компонент, the ‘Multifunctional antenna assy’ (7903010-61Б), это “дольше” and most complex part of the assembly. It is the primary MSU and functions as a sealed “black box.” It is not field-serviceable; if any one of its internal functions fails, the entire unit is replaced.

The core “логика” of this assembly is the co-location of three (или больше) separate antenna systems within one housing. Each system has its own dedicated internal antenna element and its own coaxial pigtail cable.

1. Функция 1 Логика: AM/FM Radio

This is the most traditional function. The Многофункциональная антенная логическая сборка FAW contains a passive or active (amplified) элемент, such as a spiral-wound mast or internal coil, designed to receive broadcast radio frequencies (530-1700 kHz for AM, 87.5-108 MHz for FM). This signal is sent via a dedicated coaxial cable to the vehicle’s main infotainment/radio head unit.

2. Функция 2 Логика: GPS/BDS (Navigation)

This is the most critical function for modern logistics. The assembly houses a specialized “patch antenna,” typically a square of ceramic, that is precisely tuned to receive very low-power signals from Global Navigation Satellite Systems (GNSS), including American GPS and Chinese Beidou (BDS).

This data is absolutely essential for the Многофункциональная антенная логическая сборка FAW to perform its job. This satellite data feeds multiple downstream systems:

• The ‘Tachograph’ (7914010-61Б): For legally required, tamper-proof tracking of vehicle speed and location.
• The ‘Vehicle information service terminal’ (7913010A54W-000): For on-board navigation and route-planning.
• The Fleet Management System: For real-time location tracking by the home office.

3. Функция 3 Логика: 4G/LTE/GPRS (Telematics)

This antenna element is the truck’s “internet” связь. It is a cellular antenna that allows the on-board telematics modules (like the ‘Fleet management module’ 7925070-91W-C00 and the ‘4G antenna assy’ 7903060-95Т) to transmit and receive data over the mobile phone network.

Этот “логика” is the key to the connected fleet. It allows the truck to send real-time engine fault codes (DTCs), driver logs, and fuel economy data back to headquarters, while also receiving new dispatch orders, route updates, and software patches. The Многофункциональная антенная логическая сборка FAW is the single gateway for all this data.

Construction and Serviceability

The housing is made of UV-stable, impact-resistant ABS polymer. The most critical component is the high-density foam or rubber gasket on its base. This gasket provides a waterproof seal against the truck’s metal roof, preventing water leaks that can destroy the cab’s headliner and cause rust. Failure of this gasket is as critical as an electronic failure. As an MSU, the entire unit is replaced if any one of its three functions fails.

Основной 2: The Fastening & Securing Logic (МГУ 2 & 3)

This final group of MSUs covers the installation hardware for the Многофункциональная антенная логическая сборка FAW. While they seem simple, they are critical to the system’s performance and longevity.

1. The Screw (МГУ 3): ‘Винт с потайной головкой и крестообразным шлицем’ (Q2140628)

The parts list calls for one (1) of these screws. This indicates it is the main mounting stud that passes through the roof and is secured from inside the cab. This screw’s “логика” двоякий:

• Зажимная сила: It provides the pressure needed to compress the base gasket, creating the watertight seal.
• Ground Plane: This screw creates the primary electrical ground for the antenna system. Many antennas (especially AM/FM) use the large, flat metal roof of the cab as a “ground plane,” which is an active part of the antenna system itself. A loose or corroded screw here will destroy radio reception and can impair GPS/4G performance.

2. The Tapes (МГУ 2): ‘Harness fixing tape’ (3724152-61Б)

The list specifies four (4) из этих “tapes,” which are essentially specialized, high-strength cable ties. The “логика” of including these in the Многофункциональная антенная логическая сборка FAW parts list is critical: cable management.

The pigtail cables coming from the antenna are delicate, high-frequency coaxial cables. They cannot be pinched, kinked, or allowed to vibrate (раздражать) against a sharp metal edge. Doing so will damage the internal shielding and ruin the signal. These four tapes are the OEM-specified MSUs used to secure this cable run from the roof, down the A-pillar, and to the dashboard. Используя стандарт, cheap zip tie could pinch the cable or break over time. These are a tiny but essential MSU for a reliable installation.

FAW Multifunctional Antenna Logic Assembly Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 3 типы компонентов, указанные в Многофункциональная антенная логическая сборка FAW схема трактора FAW CA4251P66K24T1A3E5.

Технические характеристики и контекст сборки

Технические характеристики Многофункциональная антенная логическая сборка FAW are defined by its function as a multi-band receiver and transmitter for the vehicle’s core communication, navigation, and telematics systems.