Huawei DBS3900 IBS, Описание аппаратуры, Страница: 22 / 28

DRH3980A&3909A&3918A&
3918B&3921A&3921B&3926A
Hardware Description
3 DRH Cables
Issue DraftA (2013-08-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd..
16
Table 3-5 Labels on and recommended connections for optical fibers of a fiber optic cable
between DRHs
Label Connected To
1A CPRI RX port on DRH 1
1B CPRI TX port on DRH 1
2A CPRI TX port on DRH 0
2B CPRI RX port on DRH 0
Table 3-6 Labels on and recommended connections for optical fibers of a single-mode optical
assembly between a DPC and an ODF or between an ODF and an DRH
Label Connected To
1A RX port on the DPC or CPRI RX port on the DRH
1B TX port on the DPC or CPRI TX port on the DRH
2A ODF
2B ODF
3.6 DRH RF Jumper
The 1/2" DRH RF jumper transmits and receives RF signals between an DRH and an antenna.
A fixed-length RF jumper used by an DRH is 2 m (6.56 ft), 3 m (9.84 ft), 4 m (13.12 ft), 6 m
(19.68 ft), or 10 m (32.81 ft) long. A variable-length RF jumper used by an DRH has a
maximum length of 10 m (32.81 ft).
If the customer prepares the RF jumper, the length of the RF jumper should be as short as possible and not
exceed 2 m (6.56 ft).
Exterior
An RF jumper has a DIN male connector at one end and a customized connector at the other
end.
Figure 3-9 shows an RF jumper with a DIN male connector at each end.