IWIR TX925, WIR SYS 1 Infrared Listening Systems
14
Specifications - MOD 232
Size, Weight:
8.5” W x 8.2” D x 1.7” H (21.5 cm x 20.8 cm x 4.4 cm), 3.1lbs. (1.5 kg)
Color:
Black epoxy paint with white legends
Rack Mount:
1/2 rack space wide, 1 rack space high, one or two modulators may be mounted in a single IEC rack space with RPK 005
(single) or RPK 006 (double) Rack Mount Kits
Power Supply:
Wall Transformer, 24VAC, 50-60 Hz, 15VA
North America: TFP 016, UL/CSA
Europe: TFP 027-01, 2-pin Schuko plug, CE
UK: TFP 027-02, 3-pin UK plug, CE
Modulation:
FM Wideband, +50kHz deviation, 50uS pre-emphasis
Carrier Frequency:
Channel A: Selectable, 2.3/2.8/3.3/3.8MHz,
Channel B: Selectable, 2.3/2.8/3.3/3.8MHz
Signal to Noise Ratio:
More than 60dB
Frequency Response:
30 to 16,000Hz, +1 dB, -3dB, electrical response
Total Harmonic Distortion:
Less than 2%, electrical response
Audio Processing:
Compression (slope) adjustable from 1:1 to 2:1
Switchable compression gain: Moderate: 16dB. Max: 33dB
Auto Carrier Shut-Off:
15 minute timer shuts off carrier when no audio is present (can be disabled)
Power Switch:
Two-position push button, ON/OFF
Power Indicator:
Green LED
Audio Level Controls:
CHA and CHB Input Level, rotary knobs
Audio Indicators:
CHA and CHB Audio Level, 10-segment LED’s
Carrier LEDs:
4 green LED carrier “on” indicators per channel (indicates frequency, malfunctions)
Compress Control:
1:1 or 2.0:1
Input Mix LED:
Indicates inputs A and B audio are mixed and transmitted by CHA. CHB off
Stereo LED:
Indicates stereo mode
Phones Switch:
Selects CH1 or CH2 for phones when not in stereo mode
Phones Output:
1/4” TRS headphone jack. Accepts stereo, mono, and any impedance phones.
Infrared Test LED:
IR LED for receiver testing, monitoring, and audio signal testing.
Power Input:
3-Pin Molex, 24VAC, 50-60Hz, 15 VA
Audio Input Jack:
CHA and CHB combination XLR/TRS jack
Mic Level: Balanced, Lo-Z, 100µV min. to 90 mV max., 1mV nominal, 3kΩ input impedance, supplies switchable simplex power
per DIN 45596 for condenser mics
Line Level: Balanced or unbalanced, 21mV min. to 10V max., 212mV nominal, 100kΩ
Audio Line Output Jacks:
RCA Jack, CHA and CHB, 500mV, unbalanced, 100Ω source impedance, load impedance must be greater than1kΩ
Configuration Switches:
CHA and CHB 8-position DIP switch, selects Mic/Line input, compressor gain, simplex power, discrete or mixed inputs, carrier
frequency, channel disable, auto shut-off timer.
Baseband Input Jack:
BNC, allows mixing with additional MOD 232 Modulator (4CH operation), 100mV, 50Ω input impedance, use with MOD 232,
BNC, RG-58 Cable
Baseband Output Jack:
Two BNC jacks carry baseband signal, 100mV/channel, 50Ω source impedance, for use with WIR TX9 or MOD 232 only
Approvals:
CE, FCC, RoHS, WEEE
Operating requirements:
0-50º C ambient temperature, non-condensing, non-corrosive atmosphere
Warranty:
5 years on Modulator, 90 days on accessories
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
Visit our website for the latest specifications and publications: www.williamsav.com
