Getting started
R&S
®
SMA100B
34User Manual 1178.3834.02 ─ 09
2.
NOTICE! Risk of instrument damage and connector damage. Excessive tightening
can damage the cables and the connectors. However, if you do not tighten the con-
nectors enough, the measurement results can be inaccurate.
To connect the cable with the connector, proceed as follows:
a) Carefully align the connector of the cable and the connector along a common
axis.
b) Mate the connectors along the common axis until the male pin of the inner con-
nector engages with the female socket of the outer connector.
c) Turn the nut of the outer connector until the connectors are firmly coupled.
d) Torque the nut to the specified limit using a calibrated torque wrench. Hold the
opposite connector part stationary with a spanner.
For torque limits of the most relevant connector types, see Table 3-1.
For more information, see chapter "Handling" of the application note 1MA99.
Table 3-2: Connector types and torque limits
Type Torque limit Nut opening
lb-Inch Nm Inch mm
N 13.3 1.5 3/4 20
SMA 5 0.56 5/16 8
3.5 mm 8 0.9 5/16 8
2.92 mm 8 0.9 5/16 8
2.4 mm 8 0.9 5/16 8
1.85 mm 8 0.9 5/16 8
1.0 mm 3 0.34 0.236 6
3.1.11 Switching on or off
The following table provides an overview of power states, LEDs and power switch posi-
tions.
Table 3-3: Overview of power states
State LED Position of power switch
Off
gray
[0]
Standby
orange
[I]
Ready
green
[I]
To switch on the R&S SMA100B
The R&S SMA100B is off but connected to power. See Chapter 3.1.6, "Connecting to
power", on page 30.
1. Set the switch on the power supply to position [I].
Preparing for use
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