©
National Instruments Corporation
15
BNC-2121 Connector Accessory for 660X Devices
Fall time .......................................... 50 ns
Spring terminal ............................... 1 position
Output voltage........................................ Refer to Figure 3
Figure 3.
Typical Maximum Voltages versus Load Impedances
Digital Input/Output
LED state indicators............................... 8 (1 per digital line on PFI <0..7>)
Power Requirement
5 VDC (
±
5%) ......................................... 200 mA, sourced from
660
X
device, which provides 1 A
Power available at 5 V
spring terminal (
±
5%) ............................ 600 mA, sourced from
660
X
device, which provides 1 A
Physical
Dimensions............................................. 27.2 by 11.2 by 5.21 cm
(10.69 by 4.41 by 2.05 in.)
I/O connector.......................................... 68-pin male SCSI-II type
BNC connectors ..................................... 14
Spring terminal plugs ............................. 72
0
1
2
3
4
5
6
1 MH
z
10
kH
z
5
kH
z
2 kH
z
1
kH
z
680 H
z
Volts
H
z
Square Wave
(V
peak-to-peak
)
