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1
Connecting User
Inputs To
E1472A/73A
Cabling Guidelines
Chapter 2
User inputs to the E1472A RF Multiplexer and E1473A Expander modules are via
user-supplied female 50 Ohm SMB connectors to the male 50 Ohm SMB
connectors on the modules. Figure 2-5 shows the RF Multiplexer 50 Ohm SMB
connectors and associated channel numbers.
• For best high-frequency performance, user cabling should have at least two
braided shields or one braid and a foil wrap.
• Always use shielded coaxial cables with the characteristic impedance of 50
Ohms. Keep cables as short as possible, especially in high-frequency
circuits or pulse circuits where a rise/fall time is critical.
• Long cables can add delay time which can cause timing problems. All test
equipment, such as counters, spectrum analyzers, and oscilloscopes must be
terminated in the characteristic impedance (50 Ohms) to minimize reflection
loss.
Figure 2-7. 50 Ohm SMB Connector Locations
Configuring the RF Multiplexer 23
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