Applied Instruments 5112 Mounting instructions

Model 5112
Multi-Carrier Signal Generator
User Operation Manual
Revision 2.6
Date May 22, 2018

Model 5112 Operation Manual Applied Instruments Inc
Table of Contents
1 INTRODUCTION..........................................................................................................3
1.1 Symbols Used...........................................................................................................3
1.2 Safety Instru tions....................................................................................................3
2 OPERATING INSTRUCTIONS.................................................................................4
2.1 Front Panel...............................................................................................................4
2.2 Rear Panel................................................................................................................5
2.3 AC Operation...........................................................................................................5
2.4 Operating Conditions...............................................................................................6
2.5 Water Ingress and Mounting....................................................................................6
3 SYSTEM CARRIER-TO-NOISE MEASUREMENT................................................7
4 SERVICING INSTRUCTIONS...................................................................................8
4.1 Battery Repla ement................................................................................................8
5 SPECIFICATIONS........................................................................................................9
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Model 5112 Operation Manual Applied Instruments Inc
1 INTRODUCTION
The Model 5112 generates RF ontinuous wave signals for use as referen e signals when
aligning 2-Way CATV forward and return bands. This fully portable, battery-powered
unit may be onfigured with one to four RF arriers. Up to six arriers may be used
when all arriers are less than 180 MHz. Ea h arrier may be a tivated individually or
simultaneously. The optional built-in attenuator provides up to 70 dB of arrier amplitude
range. The ompa t design allows onvenient return alignment in onjun tion with
forward sweep or rough balan e efforts. With spe tral purity of at least 60 dB , the
arriers may also be used for hum and noise evaluation tests. The unit will operate
ontinuously for multiple hours, longer with low frequen y arriers. It is en losed in a
rugged, portable ase.
1.1 Symbols Used
The following symbols are used in this manual and/or marked on the instrument.
Hazardous areas on the instrument are marked with this symbol.
Consult this manual to learn the nature of the hazard and proper a tions for
safe operation.
Indi ates an earth ground terminal.
Indi ates possibility of ele tri sho k.
Indi ates a prote tive ondu tor terminal
1.2 Safety Instructions
•Read and follow all instru tions in this manual.
•Risk of ele tri al sho k exists if the unit is opened when AC is onne ted.
•Unplug and turn unit off before leaning. Clean with a dry loth only.
•Use only the ord supplied with the unit or an equivalent ord rated for at least 1.5
Amps and ontaining a prote tive earth ground ondu tor.
•Servi ing should be done by qualified servi e te hni ians only.
•Use of the instrument in a manner not onsistent with the instru tions in this
manual may impair the safety features and lead to damage or injury.
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Model 5112 Operation Manual Applied Instruments Inc
2 OPER TING INSTRUCTIONS
This se tion provides the instru tions and information ne essary to onne t and operate
the Model 5112 Multi-Carrier Signal Generator. In luded are the identifi ation and
fun tion of ontrols, onne tors, and indi ators. Before turning on the instrument be ome
familiar with the fun tional omponents of the unit.
2.1 Front Panel
1. Power on-off swit h - Three-position swit h to apply instrument power. In the
enter position, instrument power is off. In the upper 'ON AC' position,
instrument power is provided from the AC power re epta le. In the lower 'ON
DC' position, instrument power is provided from the internal battery pa k.
2. Power on indi ator LED - LED illuminates when power has been applied to the
instrument. This powering may be from either the AC re epta le or the DC
battery pa k.
3. AC Charge LED - LED illuminates whenever the Model 5112 is onne ted
through the AC re epta le to an AC sour e. The internal battery will be harged
when the AC re epta le is onne ted to an AC sour e.
4. Lo Battery LED - LED flashes whenever battery pa k is in need of re harging.
5. Ampl Set - Individual arrier amplitude adjustments ontrols. Ea h ontrol allows
adjustment of at least 13 dB to the asso iated arrier.
6. Carrier On-Off toggle swit hes - On - Off ontrols for individual arriers.
7. Output level attenuator toggle swit hes - swit hes allow output level attenuation
of all arriers from 0 dB to 70dB in 10 or 20 dB steps.
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Model 5112 Operation Manual Applied Instruments Inc
8. RF out - Female RF output F- onne tor with repla eable barrel. Conne t to the
able system being tested. This port in ludes a blo king apa itor whi h will
blo k DC or AC voltage up to 200 Volts. Higher voltages will damage the
instrument.
2.2 Rear Panel
1. A.C. Cord Atta hment - 120/240V 50-60 Hz power atta hment re epta le
a) Type IEC 60320-1 C-13
b) 1.5 amp ord rating (typi al AC operating urrent <100 mAmps)
2.3 C Operation
When operating the instrument from AC power, adhere to these rules:
1. Warning: The applian e oupler is used as the dis onne t devi e. Do not position
the instrument so that it is diffi ult to operate the applian e oupler.
2. Use only the ord supplied with the unit or an equivalent ord rated for at least 1.5
Amps and ontaining a prote tive earth ground ondu tor.
3. Warning: The AC plug shall be onne ted to a mains so ket outlet with a
prote tive earthing onne tion.
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Model 5112 Operation Manual Applied Instruments Inc
2.4 Operating Conditions
This instrument is intended for use under the following environmental onditions. Use
outside of these onditions may result in safety hazards, in orre t operation, or damage.
1. Indoor use
2. Altitude <= 2000 meters
3. Ambient temperature 0 °C to 50 °C
4. Relative humidity <80% up to 31 °C, <50% at 40 °C
5. AC voltage +/- 10% of nominal (some temporary over-voltage tolerated)
6. Transient voltage spikes <2500 Vp
7. Pollution degree 2 or less, non- ondu tive pollution
2.5 Water Ingress and Mounting
Do not set up or use unit where liquids or other ondu tive materials are used. Ensure
that no liquids are spilled into the unit.
If water or other ondu tive material enters the en losure, immediately turn off the unit
and unplug it. Conta t a qualified te hni ian or return the unit to Applied Instruments for
repair.
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Model 5112 Operation Manual Applied Instruments Inc
3 SYSTEM C RRIER-TO-NOISE ME SUREMENT
Carrier-to-noise ratio is a measurement of a arrier amplitude relative to the noise floor of
the transmission system. This noise floor is reated by the summation of natural thermal
noise (-59.75 dBmV @25C. in a 4 MHz BW) and the noise figure of ea h a tive devi e.
Sin e all the inbound amplifiers "funnel" into the headend, the return portion of a two-
way system is the main ontribution to the noise floor. This is espe ially true in blo k
translated systems where a portion of the inbound noise is onverted, along with the
desired arrier, to the outbound leg.
Figure 1 is a display of a arrier surrounded by broadband noise. The term "apparent" is
used as the noise level presentation is typi ally a fa tor of the resolution bandwidth of the
test re eiver. To evaluate the arrier-to-noise ratio, insert a test arrier at the point of
origin and adjust to system amplitude.
NOTE: If the test arrier is not at system level, re ord the differen e in dB and add this
quantity to the final reading.
Now onne t a spe trum analyzer or signal level meter to the system test point.
NOTE: For tap levels below +15 dBmV, the re eiver may require pre-amplifi ation to
assure "sample noise" levels are signifi antly above the re eiver noise floor.
Tune the re eiver to the test arrier frequen y and re ord the level in dBmV. Next,
remove the test arrier or tune the re eiver about 2 MHz off enter frequen y. Remove
attenuation as needed and assure that the noise level hanges 1dB per dB of attenuator
hange. Read the level of noise and apply bandwidth and other noise orre tion as
des ribed in the re eiver manual. Re ord this level. To obtain the system arrier to noise
relationship, subtra t the orre ted noise level from the re orded signal level of the test
arrier. If the test arrier was inserted at a level lower than system level, add this
differen e to the resultant. Repeat the above pro ess at other frequen ies in the spe trum.
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Model 5112 Operation Manual Applied Instruments Inc
4 Servicing Instructions
With normal use, the only servi ing of the unit that should be expe ted is repla ement of
the battery when it be omes worn out.
All se vice should be pe fo med by a qualified technician only.
WARNING: Risk of sho k is present when the over is removed and AC
power is present. Be sure to dis onne t from AC before opening unit.
4.1 Battery Replacement
1. Obtain a new battery pa k from Applied Instruments. This pa k in ludes a
mounting bra ket, able and onne tor. Only the pa k from Applied Instruments
should be used to ensure safe operation.
2. Ensure that the unit is OFF and unplugged.
3. Remove the six s rews on the sides of the bottom half of the lam shell over.
4. Carefully remove the bottom half of the lam shell and unplug the battery able
from the ir uit board while doing so. The battery pa k is atta hed to the bottom
half of the lam shell.
5. Remove the six s rews from the bottom of the lam shell half holding the battery
pa k.
6. Repla e the battery pa k and reassemble in the reverse order.
7. Test for safe operation.
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Model 5112 Operation Manual Applied Instruments Inc
5 SPECIFIC TIONS
F equency
Frequen y Range ................................................................. 5-1218 MHz
Frequen y A ura y ............................................................ >= 0.01%
Output
Attenuator ............................................................................ 0-70 dB in 10 or 20 dB steps
Individual Amplitude Adjustment (pot).................................. 0-13 dB
Amplitude Stability ............................................................... + 0.5 dB/setting
Residual Hum ....................................................................... < 0.1%
Output Impedan e ............................................................... 75 Ohm
Spe tral Purity (spurious & harmoni ) ................................... >= 60 dB
Frequen y (MHz)
Max output level per arrier (dBmV) 5-860 861-1000 1001-1200
For hardware onfigurations up to 2 arriers..... +59 +57 +55
For hardware onfigurations up to 4 arriers..... +55 +53 +51
For hardware onfigurations up to 6 arriers..... +52 +50 +48
Mechanical
Operating Temperature Range .............................................. 0-50 Degrees Celsius
Power DC ........................................................................... Internal Ni- ad Batteries
Power AC ........................................................................... 120/240V, 50-60 Hz,1.5A max
Battery Life .......................................................................... > 3 Hours Continuous
Size ..................................................................................... 4" H. x 7.25"W. x 10"D.
Weight ................................................................................. 8 Pounds
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Model 5112 Operation Manual Applied Instruments Inc
Applied Instruments, In
5230 Elmwood Avenue
Indianapolis, IN 46203 USA
http://www.appliedin. om
Tel: [phone]
Tel (Toll-free within USA): [phone]
Fax: [phone]
Email: info@appliedin. om
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