©
National Instruments Corporation
3
BNC-2144 Installation Guide
Specifications
This section lists the specifications for the BNC-2144. These specifications are typical at 25 °C unless
otherwise stated.
Analog Input
Input channels ........................................................32
Maximum input voltage
Positive terminal ............................................±10 V
pk
Negative terminal ...........................................±1 V
pk
Overvoltage protection
Positive terminal ............................................±30 V
pk
Negative terminal ...........................................±5 V
pk
Maximum cable length ..........................................61 m (200 ft), typical
Crosstalk
Physical
Dimensions ............................................................48.3
×
4.4
×
6.4 cm (19.0
×
1.7
×
2.5 in.)
Weight ....................................................................0.89 kg (1.96 pounds)
I/O Connectors
I/O connections ......................................................32 BNC connectors and 4 Infiniband 4x connectors
Environmental
Operating temperature ...........................................0 to 55 °C (Tested in accordance with IEC-60068-2-1
and IEC-60068-2-2.)
Storage temperature ...............................................–20 to 70 °C (Tested in accordance with
IEC-60068-2-1 and IEC-60068-2-2.)
Relative humidity...................................................10 to 90%, noncondensing (Tested in accordance
with IEC-60068-2-56.)
Altitude ..................................................................2,000 m (at 25 °C ambient temperature)
Pollution Degree (indoor use only)........................2
Gain (dB)
Crosstalk for Adjacent/ Nonadjacent Channels (dBc)
*, †
1 kHz
92.2 kHz
30
–110/–110
–85/–96
0, 10, 20
–115/–120
–85/–100
*
Source impedance
≤
1 k
Ω
†
Input amplitude is –1 dBFS.
