Ward-Beck Systems XTM4 User manual
XTM4
EXTENDEDRANGETESTMETER
byWardBeckSystems
Rev:Oct.012014
XTM4EXTENDEDRANGETESTMETER
The XTM4 is a versatile test meter for the measurement of analog, AES3 and SDI
embedded audio signals over a wide range. Occupying two rack units of space, the unit
is equipped with a high quality stereo VU and PPM moving needle meter pair. All
metersareLEDilluminated.
Front panel controls and a bright dotmatrix display allow the user to select between the
various signal sources, the mode of operation, the sensitivity of the meter and peak
audiodetection(optional).AbargraphLEDphaseindicatorisincluded.
Connection to the XTM4 is via rear panel XLR(F)s for the analog and 110 Ohm AES3
signals and via BNCs for the AES3ID and SDI signals. The rear panel has a stereo
analog output of the displayed signal on an XLR(M) connector pair. The analog input
pair and AES3 input pairs are routed through TRS ¼” jacks located on the front panel.
These jacks give rapid access to the XTM4. A stereo headset jack is also provided on
thefrontpanel.
The base XTM4 comes equipped with analog, AES3 and AES3ID inputs. SDI and
expanded AES ports may be added as an option. See the SDI Demux option section.
The XTM4 is internally powered and will operate with 115V 60 Hz or 230V 50 Hz
(optional)ACmains.
FRONTPANEL
The front panel of the XTM4 comprises of two illuminated VU/Peak Program Meter
pairs, an eight LED Phase Meter, an eight character dotmatrix LED display, four push
buttonswitchesandfourTRS¼”jacks.
The meter pairs are labeled CHANNEL A and CHANNEL B. The four push buttons are
labeled SOURCE,MODE,DOWN and UP. Starting from the left the first pair of jacks
are the front panel analog inputs (A0) the AES jack is the front panel digital input (D0)
and the HDST jack is to allow aural monitoring of the signal with an impedance of 600 Ω
headset.
REARPANEL
The rear panel comprises an IEC AC power connector with internal fuse, the AES signal
input connectors, BNC for 75 Ω and XLR3(F) for 110 Ω, a pair of analog signal outputs
onXLR3(M)andapairofanaloginputconnectorsonXLR3(F).
Theanalogoutputsaresettodelivera+4dBusignalforameterreadingof0.
OPERATION:
AES digital or analog audio signals may be connected via the front panel TRS ¼” jacks
or via the rear mounted XLR3(F) connectors. Please note that the digital XLR3(F)
connector is for balanced, 110 Ω signals, while a BNC connector for unbalanced 75 Ω
signalsisalsoprovided.
SetupMode
If the user needs to reconfigure the parameters under which the signal will be
measured, press and hold the MODE button. Once ‘SETUP’ is displayed, release the
MODE button to begin. The front panel SOURCE button allows the user to change
between the different settings. The UP and DOWN buttons allow the user to increase or
decrease the peak threshold value in peak mode or change the filter and impedance
settings. To leave the setup mode and begin metering, press the MODE button. The last
source stored will be first to be metered and the changed settings will be stored in
memory.Theparametersareasfollows:
PEAK (optional) the threshold value for peak detection with respect to the reference
setting (PPM) ranging from 14 to +14 dB. See the section Peak Detection for more
information.
HPtometerusingahighpassfilter.(UPHPI,DOWNHPO)
TERM to switch the input between bridging and terminated (600 Ω).(UP HZ, DOWN
LZ)
SourceSelection
ThefrontpanelMODEbuttoncyclesthroughthethreesignalsources:
ANALOG
A0FrontPanelTRSJacks(CHA(L)andCHB(R))
A1RearPanelXLRs(CHA(L)andCHB(R))
DIGITAL
D0FrontPanelTRSJack
D1RearPanelconnector(XLRorBNCasdefinedinMODE)
SDI1(SDIA)
SA’x’RearPanelBNCinput1(inputA),(xindicatestheAESpair1>8)
SDI2(SDIB)
SB’x’RearPanelBNCinput2(inputB),(xindicatestheAESpair1>8)
AnalogSignals
With an analog input signal selected, push the SOURCE button to toggle between A0 or
A1.Thesettingsfromthesetupmodethateffectthemeteringofanalogsignalsare:
LZ LowImpedance(600Ω)
HZ HighImpedance(20kΩorhigher)
HPO HighPassFilterout
HPI HighPassFilterin
PEAK Peakdetection
If LZ is selected a lower case “z” will be displayed in the readout immediately following
the level selection. If HPI is selected a lower case “f” will be displayed on the extreme
righthandsideofthereadout.
DigitalSignals
With a digital input signal selected (if a digital signal is not present the readout display
will flash NO LOCK), push the SOURCE button to toggle between D0 or D1. The
settingsfromthesetupmodethateffectthemeteringofdigitalsignalsare:
HPO HighPassFilterout
HPI HighPassFilterin
PEAK Peakdetection
If HPI is selected a lower case “f” will be displayed on the extreme right hand side of the
readout.
For D1 sources, the autodetect feature is used for rear panel BNC and XLR signals.
Whenbothinputshavevalidsignals,thefirstsignaldetectedwillbemetered.
The XTM4 can store the parameters selected for analog, digital or sdi metering. After
cycling through the options, the XTM4 will store the most recent parameters for the
setupmode,analog,digitalandsdisources.
Themeterwilldefaulttothesavedmeteringparametersonpowerup.
PeakDetection(Optional)
The peak detection option is available to assist in the metering of audio signals. Using
PPM metering, the XTM4 can be configured for a threshold value of +/ 14 dB with
respect to the reference setting. Once the measured signal has eclipsed the threshold
value, the XTM4 will display PEAK L for the left channel or PEAK R for the right
channel.Ifbothchannelshavepeaked,PEAKLRwillbedisplayed.
PeakSetup
After entering the SETUP MODE, press the SOURCE button until PEAK is displayed.
Then press the UP and DOWN buttons to increase or decrease the threshold value by 2
until the desired value has been selected. If further changes to other settings are
necessary press the SOURCE button, else press the MODE button to allow the
changestotakeeffect.
SDIDEMUXOPTION
Serial digital video signals can carry up to four groups of two AES digital audio signals
(16 monaural signals). Adding the demux option enables the user to extract these
embedded audio signals and monitor them in the AES digital audio domain. As with
analog and AES signals an analog output of the metered signal will be available on the
rearpanel.
To meter an embedded signal use the source selection button to select either SA or SB
signal. The first signal displayed will be SA1 (SB1). This is pair 1 of group 1. Use the
SOURCEbuttontocyclethroughtheeightSDIsignalpairs:
SA1(SB1)pair1ofgroup1ofinputA(inputB)
SA2(SB2)pair2ofgroup1ofinputA(inputB)
SA3(SB3)pair1ofgroup2ofinputA(inputB)
SA4(SB4)pair2ofgroup2ofinputA(inputB)
SA5(SB5)pair1ofgroup3ofinputA(inputB)
SA6(SB6)pair2ofgroup3ofinputA(inputB)
SA7(SB7)pair1ofgroup4ofinputA(inputB)
SA8(SB8)pair2ofgroup4ofinputA(inputB)
If the SDI source selected and signal is not present the LCD readout will display a
flashing NO SDI. If an SDI signal is present, but the embedded audio is absent the LED
readout will display a flashing NO AUDIO. The settings from the setup mode that effect
themeteringofthedisembeddeddigitalsignalsare:
HPO HighPassFilterout
HPI HighPassFilterin
PEAK Peakdetection
If HPI is selected a lower case “f” will be displayed on the extreme right hand side of the
readout.
Please note that the selected SDI input signal is actively looped through the demuxer.
The SDI output available on the rear panel of the XTM4 is an equalized and reclocked
signal.
SPECIFICATIONS
SDIINPUTS/OUTPUT
InputImpedance 75Ω
InputLevel 0.8Vpp(typical)
OutputLevel 0.8Vpp
OutputImpedance 75Ω
DataRate 27014852970Mbps
DIGITAL
InputStandard
110Ohm,transformerbalancedXLR3
75Ohm,unbalancedBNC
TRSfrontpaneljack
InputLevel 0.25Vpp
SamplingFrequencyRange 30kHzto96kHz
MeterLevel 0VU=50dBFSto0dBFS
FrequencyResponse
+0.25dB50Hzto20kHz
ANALOG
InputImpedance HiZmodegreaterthan20KOhmbalanced
LowZmode600Ohmbalanced
MeterLevel 0VU=60dButo+30dBu
FrequencyResponse
+0.25dB50Hzto20kHz
GENERAL
PowerRequirements 115VAC,60Hz
(Availableuponrequest)230VAC,50Hz
Dimensions 19"widex3.5"highx10.75"deep
(483mmx88mmx273mm)
Weight 8.03lbs(3.65kg)
PeakDetectionAccuracy +/1dB
WardBeckSystemsLtd.reservestherighttochangeperformancespecificationswithoutpriornotice.
WARRANTY
All WardBeck Systems Ltd. products are warranted against defective materials and
workmanshipforaperiodofoneyearfromthedateofshipment.
WardBeck Systems Ltd. will repair or replace, at its option and without charge, all said products
or parts thereof which upon factory inspection prove to be defective during the warranty period,
providedthat:
1. Theoriginalserialnumbersareintactandhavenotbeentamperedwith.
2. The purchaser shall return any equipment or parts thereof to WardBeck Systems Ltd.
only after obtaining prior authorization and shipping instructions from the factory.
(WardBeck Systems Ltd. reserves the right to inspect or repair equipment on the
purchaser’spremises).
3. The purchaser assumes the obligation for all expenses in connection with the shipping
andreturnofsuchgoods,onceauthorizationhasbeenobtained.
Thiswarrantydoesnotcoveritemsnormallyconsideredexpendable,suchasfusesandlamps.
This warranty does not cover damages caused by misuse, accident, neglect, unauthorized
alteration, repair by unauthorized personnel, or damage caused by an act of God, war, or civil
insurrection.
In no event shall WardBeck Systems Ltd. be liable for consequential damages. WardBeck
SystemsLtd.shallhavetherightstofinaldeterminationastotheapplicationofthiswarranty.
WardBeck Systems Ltd. reserves the right, at any time and without notice, to make changes in
its equipment, components, specifications or designs, as may be warranted by progress in
stateofthearttechnology.
WardBeck Systems Ltd. reserves the right to make design changes, additions to, and
improvements in its products, without obligation to install such revisions in products previously
manufactured.
The warranty set forth herein is in lieu of all other warranties expressed or implied, including the
warrantiesofmerchantabilityandfitness.
WARDBECKSYSTEMSLTD.
945MiddlefieldRoad,Unit9,Toronto,OntarioM1V5E1
V4163355999F4163355202TollFree8007712556
Website:www.wardbeck.com
EMail:sales@wardbeck.com
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