R&S
®
ZVA/ZVB/ZVT Rear Panel Connectors
1145.1084.12 8.5 E-3
The length of passive connecting USB cables should not exceed 1 m. The maximum current per
USB port is 500 mA.
Pin No. Name Input (I) or
Output (O) or
Bidirectional (B)
Voltage Range Function
1 +5.2VD – +5.2V Supply voltage (rt)
2 USBD0M B TTL Data D– (ws)
3 USVD0P B Data D+ (gn)
4 GNDD – 0 V Digital ground (sw)
5 +5.2VD – +5.2V Supply voltage (rt)
6 USBD1M B TTL Data D– (ws)
7 USBD1P B Data D+ (gn)
8 GNDD – 0 V Digital ground (sw)
10 MHz REF
Coaxial BNC connector used as an input or output for the 10 MHz reference clock signal.
The function of the 10 MHz REF connector depends on the Int. Reference or Ext. Reference setting in
the System menu:
• If Int. Reference is active, 10 MHz REF is used as an output connector for the 10 MHz internal
reference clock signal of the analyzer.
• If Ext. Reference is active, 10 MHz REF is used as an input connector for an external 10 MHz
reference clock signal. The external reference signal must meet the specifications of the data
sheet. The internal reference signal is synchronized to the external signal.
Pin No. Name Input (I) or
Output (O) or
Bidirectional (B)
Voltage Range Function
Center conductor FR_REF_10_OUT/IN B See data sheet Reference frequency
Outer conductor GNDA – 0 V Analog ground
DC MEAS
Two inputs for DC measurements. The connectors are of the same type but specified for different input
voltage ranges, see data sheet.
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