The LightViper® VRK-1832 is used in connection with the VIM-1832 or VIM-MY32 YGDAI cards to achieve a 32×8 fiber-optic transport system. The VRK-1832 or VIS-1832 is the “head” end for Stage to FOH or drive snake applications. The VRK version is a 5U rackmount configuration and the VIS is more of a floor box package.
This device contains 32 mic/line inputs (sends) and 8 analog line level outputs (returns). There is a 3 position gain switch for each input that sets the gain of the mic-pre. The normal settings for these switches are as follows: 0 = line level, 26 = mic level, 12 = high transient / very “hot” mic level.There are 4 +48v phantom power on/off switches with associated on/off LED indicators. Phantom power is applied in groups of 8 inputs.
The unit is supplied with a pair of transmit/receive LC fiber connectors (other connector types possible). Two optical splits come standard. These splits (transmit only) are presented on a single fiber each. The VIS-1832 will operate at 48k or 96k sampling rate.
The system features a “control” connection which is a TTL data port which appears on an EtherCon® connector. It allows LightViper accessory devices such as the DMX4o (DMX lighting control) or MD3 (RS422/232/MIDI) to be connected to the unit.
Typical Application
- 32×8 FiberOptic Audio Transport
- 32 mic/line inputs with 3 position gain switch
- 24 bit 48k or 96k operation
- Heavy gauge steel construction
- Ultra-low latency cable runs over 1.25 miles with no loss
| GENERAL SPECIFICATIONS | ||||
|
Min
|
Typ
|
Max
|
||
| Power Requirement | Voltage Range (V) |
90
|
110
|
250
|
| Supply Current (mA) |
-
|
463
|
-
|
|
| THD+N (1kHz@ +4dBu) | < 0.01% | |||
| Frequency Response (20-20kHz @ +16 dBu) | ± 0.5 dB | |||
| Dynamic Range | 102 dB | |||
| Crosstalk | 5 dB above noise floor | |||
| Sampling Rate | 24 bit / 96kHz or 24 bit / 48 kHz | |||
| Latency | 630 μs analog input to analog output, 20 μs, digital input to digital output | |||
| Environmental | Storage Temperature (°C) |
-40
|
-
|
85
|
| OperatingTemperature (°C) |
0
|
-
|
50
|
|
| INPUT CHARACTERISTICS | ||||||||
|
Gain
|
Voltage Gain
|
Sensitivity (mVrms)
|
S/N (dBu)
|
Overload (dBu)
|
Clipping (dBu)
|
Impedance (KΩ)
|
||
| Analog In |
0
|
0 (0dB)
|
1.65
|
-83
|
+16
|
+19
|
XLR TRS
|
1.8 10
|
|
12
|
4 (12 dB)
|
412.5
|
-83
|
|||||
|
26
|
20 (26dB)
|
82.5
|
-83
|
|||||
| OUTPUT CHARACTERISTICS | |||||
|
Source Impedance
|
Nominal
|
Out Level
|
Max Before Clip
|
Connector
|
|
| Analog Out |
150 Ω
|
600 Ω Lines
|
+4 dBu (1.23 V)
|
+19 dBu (7 V)
|
Neutrik XLR-3-332
|
| PHYSICAL SPECIFICATIONS | ||||
|
Length
|
Width
|
Height
|
Weight
|
|
| Case Dimensions |
12.5 in (318 mm)
|
8.75 in (222 mm)
|
4 in (102 mm)
|
12 lb (5.4 kg)
|
| OPTICAL CHARACTERISTICS | ||||||
|
Fiber
|
Size
|
Max Distance
|
Wavelength
|
Output Power
|
RX Sens | Loss Budget |
|
Multimode
|
62.5 / 125 μm
|
2 km
|
820 nm
|
-18 dBm
|
-30 dBm
|
12 dB
|
| Singlemode |
9 /125 μm
|
20 km
|
1300 nm
|
-15 dBm
|
-32 dBm
|
21 dB
|
