User Manual
CXE85X
59300464
Rev.005
9.12.2013
3(44)
Introduction
CXE851 is a single input fibre optical receiver and CXE852 is a dual input fibre
optical receiver. Both receivers can be monitored and controlled through
standard Ethernet interface using WebUI, SNMP and CLI interfaces. They are
designed for cases which don't need optical transmitter and only a downstream
signal is required.
CXE85x optical receivers feature an 1006 MHz bandwidth and integrated
optical receiver(s). The use of integrated optical receiver(s) eliminates time-
consuming mounting of connectors and fibre splicing inside the housing. The
optical receiver(s) supports light wavelengths from 1290 nm to 1600 nm.
Alignment of CXE85x is easy. The Optical Level Control (OLC) as well as gain
and slope adjustments use electrical controls that improve reliability. Installation
can be carried out using basic tools without any software. Local or remote
configuration using PC software is also possible, allowing fine-tuning the
product.
The RF output port is equipped with DC voltage connection controlled by
processor. It can be used to control external equipment, for example Ethernet
switch powering.
CXE852 and CXE851 differ only in one respect: CXE852 is equipped with two
optical receivers and provides either manual or automatic switchover between
the two inputs.
CXE85x generations
There are two CXE85x generations with some differences in hardware and/or
software functionality:
1
st
generation CXE85x:
• Manufactured until Q2/2013
• Two slope adjustment values: 0 dB / 10 dB
• Gain adjustment range 0…-15 dB (HW mode) / 0…-20 dB (SW mode)
2
nd
generation CXE85x:
• Manufacturing started Q2/2013
• Three slope adjustment values: Flat / Middle / High (0 dB / 7 dB / 9 dB)
• Gain adjustment range 0…-31 dB and additional "attenuator range"
selection jumper.