Table of Contents
Advertisement
DRH3980A&3909A&3918A&
3918B&3921A&3921B&3926A
Hardware Description
DRH
Alarm
Port
RS485
3.5 CPRI Fiber Optic Cable
CPRI fiber optic cables are classified into multi-mode fiber optic cables and single-mode fiber
optic cables. They transmit CPRI signals.
Exterior
Figure 3-5
DLC connector at each end.
Figure 3-5 Fiber optical cable between a DPC and an DRH or between DRHs
(1) DLC connector
When a fiber optical cable connects a DPC and an DRH, the optical fibers on the DPC side
and DRH side are 0.34 m (0.013 in.) and 0.03 m (0.0012 in.) long, respectively. When a fiber
optical cable connects two DRHs, the optical fibers on both DRH sides are 0.03 m (0.0012 in.)
long.
Figure 3-6
Issue DraftA (2013-08-10)
Pin of the
Waterpro
ofed
DB15
Male
Connecto
r
X1.10
X1.11
X1.13
X1.14
An ODF can be used when the distance between a DPC and an DRH or the distance between
interconnected DRHs is longer than 100 m (328.08 ft).
A single-mode fiber optic cable connects a DPC to an ODF or connects an ODF to an DRH.
shows a fiber optic cable between a DPC and an DRH or between DRHs, with a
(2) Branch optical fiber
shows the connections for a CPRI fiber optic cable between a DPC and an DRH.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd..
Color
Type
White and
Twisted
green
pair
Green
White and
Twisted
brown
pair
Brown
Cord End
Description
Terminal
X6
APM RX-
X7
APM RX+
X8
APM TX-
X9
APM TX+
(3) Label on the branch optical fiber
3 DRH Cables
13
Advertisement
Table of Contents
