GRAS 12BC, 12BF and 12BD LEMO Power Modules with TEDS Support
Connection: LEMO
Traditional 200 V
Channel(s): 1, 2 or 4
TEDS via USB
Technology
The GRAS 12BC, 12BF and 12BD are, respectively, single- two- and four-channel USB-powered LEMO power modules with TEDS support.
These power modules provide power to microphone sets without signal degradation, gain modification, or attenuation.
This series excells as a simple and cost-effective interface between TEDS-enabled measurement microphones and any Audio Precision APx series analyzer, which will automatically extract TEDS data for seamless integration.
However, these power modules can also be used with other brands. In this case, a utility program provides access to TEDS data on a PC. This utility program can be downloaded here.
Power for 12BC, 12BF and 12BD is provided through a USB cable if the port can supply a minimum of 1.5 A that is required by the module. Power can be supplied via a USB 2.0 or USB 3.0 port connected to a USB-C port on the power module or AC mains power through the AUXPWR port if the minimum 1.5 A is not available through the USB-C port.
If more channels are needed, multiple power modules can be used concurrently.
Specifications
USB Interface
|
Interface |
Type A Peripheral Interface |
|
|
Version |
USB C/USB 2.0 |
|
|
Power |
USB +5 V, 500 mA max |
Microphone Channel
|
Channel(s) |
Input/Output |
LEMO/BNC |
|
Max input voltage (limited by ±15 V DC pre-amp supply) |
Vpeak |
14 |
|
Polarization voltage |
V DC ±2.0 V |
200 |
|
Pre-amp voltage |
V DC @ 30 mA DC per channel |
±15 |
|
Max output voltage (limited by ±15 V DC pre-amp power and microphone pre-amp output) |
Vpeak-to-peak |
24 |
|
Coupling |
AC, 10 Hz high-pass filter |
General
|
Bandwidth |
Hz |
10 to 20 (±0.06 dB) |
|
Noise, input shorted, 10 Hz to 20 kHz |
µV RMS |
< 2.0 |
|
Temperature range, operation |
°C /°F |
0 to +45 / 32 to 113 |
|
Temperature range, storage |
°C /°F |
-40 to +75 / -40 to 167 |
|
Humidity |
Up to 40 °C |
90%, non-condensing |
|
EMC |
EN 61326-1: 2013 Class B |
|
|
Safety |
UL/EN/IEC |
|
|
Dimensions, width x height x depth |
mm |
108 x 44.2 x 193.8 |
|
Weight (12BC |
g/oz |
390/13.8 |
Ordering info
|
GRAS 12BC |
1-Channel LEMO Power Module with USB Connection |
|
GRAS 12BF |
2-Channel LEMO Power Module with USB Connection |
|
GRAS 12BD |
4-Channel LEMO Power Module with USB Connection |
Included
| - |
USB Cable |
Optional
Extension cables with 7-pin LEMO connectors
| GRAS AA0008 |
LEMO 7-pin-LEMO 7-pin cable, 3 m |
|
LEMO 7-pin-LEMO 7-pin cable, 10 m |
|
|
GRAS AA0012 |
LEMO 7-pin-LEMO 7-pin cable, 30 m |
|
GRAS AA0014 |
LEMO 7-pin-LEMO 7-pin cable, 100 m |
|
GRAS AA0020-XX |
Custom, XX specifies the length in metres |
Extension cables with BNC connectors
|
GRAS AA0033 |
BNC-BNC cable, 1 meter |
|
GRAS AA0034 |
BNC-BNC cable, 2 meters |
|
GRAS AA0035 |
BNC-BNC cable, 3 meters |
