Ward-Beck AMS4/DEMUX3 HD/SD-SDI Option for AMS4 -HD/SD-SDI In Out 2 AES/EBU Out

$970.75
Unit price per

The AMS4/DEMUX3 is a versatile audio monitoring system. This one RU high unit can be used to monitor analog audio, AES digital audio and audio embedded in an HD/SD SDI sigmnal. A re-clocked, retimed copy of the SDi signal is provided. The AMS4/DEMUX3 features an 8 x 1 input switcher (four analog sources, four AES sources) with auto recognition of 75 or 110 Ohm AES signals. The DEMUX module extracts all four groups from the SDI signal and these can be selected for monitoring eight stereo pairs (SD 1 through 8 on the SOURCE selector). A direct balanced stereo analog audio output of the switcher is available on the rear panel. A ten segment LED stereo VU meter and phase indicator is included on the front panel. The AMS4 offers full range acoustic monitoring and may be muted via external control. Two front panel push button switches, MODE and SOURCE, and a dot matrix LED readout allows the user to select the source to be monitored. The MODE switch steps through analog, AES digital and HD/SD SDI modes while the SOURCE switch selects the input from that group. Use A1 through A4 for analog, D1 through D4 for AES and SD1 through SD8 for embedded audio. On power down, the last selection is stored in memory. If a signal is lost or corrupted in the AES digital mode or is missing in the SDI mode, the display will alternate between the source selection and the letters NL, signifying no lock. The AMS4/DEMUX3 will automatically detect whether the AES/EBU digital signal is balanced (110 Ohms) or unbalanced (75 Ohms). In the event that both a balanced and unbalanced signal is connected simultaneously to the same AES input, random selection between the two sources will occur. A convenient front panel mounted TRS headset jack is provided. The speaker feeds are normalled through this jack to automatically mute the speakers when a headset is plugged in. Connections to the AMS4 are made on convenient pluggable screw terminals for the balanced analog and digital AES inputs and outputs. The unbalanced digital audio inputs are made on 75 Ohm BNC connectors.

The EXT MUTE IN requires a closure to ground to mute the monitor. Once muted, the display window of the AMS4 will alternate between the selected source ID and the word MUTE. The open collector output EXT MUTE TALLY pin will be activated. Connections to the external mute control and tally are available on a pluggable screw terminal, located on the rear panel.

Features:

Monitors analog, AES and HD/SD SDI embedded audio signals
8 x1 Input Switcher, 4 x Analog Stereo + 4 x AES sources
Re-clocked output of digital video signal provided
LED level meter
Phase indicator
Dot Matrix readout identifies selected source
5 Speaker full range monitor
Line level analog output of selected source
Front panel normalled headset jack (speakers mute when headset plugged in)
External mute function
75 and 110 Ohm AES inputs
75 Ohm digital video inputs and outputs
Connections on pluggable screw terminals (analog and balanced AES) and BNC for unbalanced AES

Specifications:

Digital
Input AES/EBU 110 Ohm transformer balanced screw terminal
Input 75 Ohm unbalanced BNC
Sampling Frequency Range 30kHz to 50kHz
Meter Level 0VU = -20dBFS (or specify when ordering)
Input Level 0.2-5V p-p
General
Power Requirements 115V AC/60Hz 25VA, or 230V AC/50Hz
Dimensions 19? w x 13/4? h x 103/4? d (483mm x 44mm x 273 mm)
Weight 4.5kg (10 lbs)
Open Collector Output 10 Ohm 24V 25 mA MAX
Analog
Input Impedance >20K Ohm balanced
Input Level +24 dBu max
Meter Level 0VU = +4dBu (or specify when ordering)
SDI
Return Loss 10 dB
Output Impedance 75 Ohm
Input Impedance 75 Ohm
Input Level 0.8 Vp-p (typical)
Data Rate 270 Mbps
Output Level 0.8 Vp-p
Digital
Input Level - 0.2 to 7V p-p
Input Impedance - 110 Ohm, balanced and 75 Ohm, unbalanced
Sampling Frequency Range 30kHz to 50kHz
Meter Level - 0VU = -20dBFS (or specify when ordering)
Analog
Input Impedance - >20K Ohm balanced
Input Level - +24 dBu max
Meter Level - 0VU = +4dBu (or specify when ordering)
SDI
Input Level - 0.8 Vp-p (typical)
Input Impedance - 75 Ohm
Output Level - 0.8 Vp-p
Output Impedance - 75 Ohm
Return Loss - -10 dB
Data Rates - 270, 360Mbps or 1.485 Gbps
General
Power Requirements - 115V AC/60Hz 25VA, or 230V AC/50Hz
Dimensions - 19? w x 13/4? h x 103/4? d (483mm x 44mm x 273 mm)
Weight - 4.5kg (10 lbs)
Open Collector Output - 10 Ohm 24V 25 mA MAX

Includes: