10-5 PHYSICAL SETUP See Figure 10-2 for an illustration of the connections necessary to per-
form an automatic calibration using the AutoCal module. Note that
the connection is very simple. Different power cable connectors are
used with the mechanical modules and the electronic modules to pre-
vent connecting the wrong power supply in error.
There is no on-off switch. When power is connected to the AutoCal
module, the LED labeled POWER should come on immediately. The
second LED, labeled OPERATE, should come on in about five minutes,
after the internal temperature control oven has stabilized. The
internal temperature is held within a 5 oC window.

PHYSICAL SETUP AUTOCAL

10-6 37xxxE OM

.-
Measurement
Enhancement
Channels
Display
AUTOCAL MODULE 36581KKF
40 MHz - 20 GHz
LEFT RIGHT
Power Operate
AUTOCAL
AUTOCAL
POWER
SUPPLY
37xxxE
SERIAL
PORT
SERIAL
CABLE
Figure 10-2. AutoCal Equipment Setup