User's Manual

CrossFire HP – All-Digital Transport System

User Guide

High Power-CrossFire User Guide

0. Preface

0.1. Safety Instructions

Before installing and operating the CrossFire, read and comply with the following safety instructions:

1. Engineering design: The CrossFire achieves signal amplification of the uplink and downlink through direct

coupling of the 2G, 3G and LTE signals from the base station. The expansion unit accesses WLAN signals and

combines the WLAN signal with the coupled signal for indoor coverage. Normal use of the system will not

damage the base station; however, with the increase of RU during network coverage for indoor distribution,

the uplink output noise level may affect the sensitivity of the base station, which should be considered

during engineering design.

2. Grounding: the shells of the access and expansion units of the device have protective ground terminals. During

installation, connect the ground terminals securely to the protective building ground with yellow and green

conductors or with braided ground wire. The aerial and feeder must be adequately grounded.

3. Power supply: The power source must be within the required range of the device. The rated voltage range for

the AC power supply system is AC100V～240V and the rated frequency range is 50Hz / 60Hz. The rated

power of the AU, EU and RU is 100W, 50W and 250W, respectively. The ground terminal of the three-core

power socket used at the device installation site must be securely connected to the protective building

ground.

4. Electric shock prevention: touching the internal power supply units is dangerous. To prevent electric shock, do

not perform live-line work.

5. The optical module can support a hot plug, but do not turn the optical fiber head towards any human body

part when plugging it in.

6. During device configuration, upgrading and plugging in units and parts, first disconnect the standby lithium

battery and device power source.

7. When accessing the radio-frequency signal, confirm that the downlink signal is no greater than 10dBm,

otherwise the device will not operate normally and damage may occur to the circuit.

8. Natural cooling: Reserve at least 40mm of height above the radiation fins during the device installation,

otherwise the device temperature may rise and affect the service life of the device.