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Rear Panel and Connector Diagrams Instrument Overview
3-42 MS278XB OM
18
Q
Input
VSA Q
differential input for baseband I/Q
50Ω or 1 MΩ
Switchable unbalanced or differential
1 Volt max
BNC
Female
19
Ethernet
10BASE-T, 100BASE-TX with LED indicators
Depending on network connection and activity:
Amber LED indicates power
Green LED indicates communication
8-pin
RJ45
20
USB
USB serial bus interface
Version 2.0
USB 4-pin
Type A
21
Trig/Gate Input
Logic input for sweep control
+10V to –10V
10 kΩ
BNC
Female
22
Noise Source Power
Provides power for an external noise source
+28V ±2V
100 mA
Software enabled
BNC
Female
23
Sweep Status
Logic output for sweep control
TTL active LOW when sweeping
BNC
Female
24
Sweep Output
Output is currently not used BNC
Female
Table 3-9. MS278XB Rear Panel Index Legend
Index Name/Image Description Connector