24 | Keysight | 34980A Multifunction Switch/Measure Unit - Data Sheet
34959A breadboard module
Use this module to create your own cus-
tom designs inside the 34980A mainframe.
You can control your custom circuits
with access to both the +12 V and +5 V
supplies, 28 relay drive lines and two 8-bit
GPIO ports. Your design can be isolated
from the analog buses or connected by
loading the backplane switches. Simply
mount your custom PC board or other
components into the space provided and
connect via the two ribbon connectors
provided. The module is provided with two
50- or 78-pin Dsub connector openings.
For custom connections, use the detach-
able ꢀat faceplates for easy modiꢁcation.
You can program your circuitry using stan-
dard read and write commands in SCPI.
General speciꢀcations
Figure 16. 34959A breadboard module
Max module power dissipation
Power available
6 W
12 V regulation no load to full load
5 V regulation no load to full load
Max power from 12 V
10%
5%
6 W
1 W
Max power from 5 V
Relay drives
Channels:
28, sink up to 100 mA
Max Input Voltage:
Leakage Current:
GPIO ports
42 V
8 μA
Chan 1 and
Chan 2:
8 conꢀgure bits as input
or output
Chan 3:
3 output bits
High Input:
Low Input:
High Output:
2 V min, 5.5 V max
0 V min, 0.8 V max
2.4 V @ 4 mA, 3 V @ 500
μA
Low Output:
0.4 V @ 8 mA
Available space for internal board/compo-
nents: 5.4 x 7.5 x either 0.9 inches height
without PC board, or 0.7 inches high with
PC board.
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