Symmetricom 5087B Overview; Front Panel - Symmetricom 5087B Operation And Maintenance Manual

1
Introduction

Symmetricom 5087B Overview

Power–Green
when power is on.
Alarm–Red when
alarm condition
10
The Symmetricom 5087B Wideband Distribution Amplifier distributes
multiple copies of a precise frequency throughout a research and
development laboratory, manufacturing facility, calibration lab, or
anywhere a precise frequency standard is required.
Its input accepts 1 to 10 MHz sine waves at amplitudes of 0.3 to 3.0
Vrms and uses automatic gain control to maintain the set output level
when the input signal level varies. The Symmetricom 5087B produces
low noise copies of the input signal on each of its 12 outputs. Output
amplitude can be adjusted from 0.75 to 3 Vrms via a potentiometer
screw accessible from the front panel to compensate for cable loss.
The Symmetricom 5087B uses a 2U high, 19-inch rack-mount chassis.
An Ethernet port on the rear panel enables you to remotely monitor the
status of the input and output signals. When the unit detects a failure, it
immediately sends an alarm to the Ethernet port. The LEDs on the front
panel show the status of the input signal, each of the 12 output signals,
and the inputs.
Figure 1 shows the instrument's front panel, and
panel.
A, B, and Input Select–Lit
LED shows active input.
Red when not receiving an
input signal. B input is
always off.
Figure 1 Front panel
Symmetricom 5087B Operations and Maintenance Manual Rev. E
OUTPUT–LEDs green
during normal operation of
output signals. All red when
unit has no input signal on the
active channel.
Figure 2 shows the rear
Use the
potentiometer next
to each LED to set