8000A Datasheet, PDF (2/19 Pages) Emcore Corporation – System 8000 Fiber-Optic Interfacility Links

System 8000 Fiber-Optic Interfacility Links
Data Sheet, Rev. 0
March 6, 2003
Description (continued)
n Remote RF monitor links measure the composite
uplink signal at the uplink EIRP monitor coupler
located at the antenna’s input feed flange.
n Monitor and control data link provides a full-duplex,
fiber-optic path for either RS-232C or RS-422 data
for the earth station’s monitor and control system.
Status information, including alarms and warnings, is
indicated by front panel LEDs and through standard
system monitor and control serial data ports on the
chassis rear panel.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Operating Temperature Range
Storage Temperature Range
Power Requirements:
8001A Chassis With 8010A (Factory Set)
Status and Control Plug
Transmitter Plug-in
Receiver Plug-in
RF Input
Surge Protection*
Humidity, Noncondensing
Symbol
TC
Tstg
—
RFIN
—
RH
Min
0
–20
115/60
—
—
—
—
—
5
Max
50
+60
230/50
5
18
5.2
2
—
95
Unit
°C
°C
Vac/Hz
W
W
W
V
—
%
*A 500 V transient developed across 100 pF is discharged through 1500 Ω to each connector pin without damaging the system.
Typical Block Diagram
As indicated in the block diagram below, the input and output amplifiers are integral to the system 8000. The tables
presented throughout the following sections, however, give the expected performance of each functional block in
the link with respect to their corresponding performance bands, including 70 MHz—140 MHz, L-band, and C-, X-,
and Ku-band interfacility links. These specifications, along with those for remote RF signal monitor interfacility links
and fiber-optic data links, are presented to aid in generating level diagrams for overall system analysis.
REDUNDANCY
INPUT
SWITCHING UNIT (RSU) AMP
FIBEROPTIC LINK
OUTPUT
REDUNDANCY
AMP SWITCHING UNIT (RSU)
RF IN
LOSS = 4 dB
NF = 4 dB
RF OUT
LOSS = 2 dB
NF = 2 dB
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