Rear Panel Features - Keysight E6640A Getting Started Manual

Front and Rear Panel Features

Rear Panel Features

Rear Panel Features
Figure 2-9 EXM rear panel
Number Item Name
1 Line power input
2 POWER SYNCH IN/OUT
3 FAN
4 INHIBIT
5 INHIBIT/VOLTAGE MON
6 10 MHz REF OUT
7 10 MHz REF IN
Getting Started Guide
Description
The AC power connection. See the product specifications for more details.
Reserved for future use.
Fan speed control (settings are HIGH and AUTO).
Inhibit switch. The settings are DEF (default) and MAN (manual).
— When the switch is in the default position, the chassis is powered
up by the front panel ON/Standby pushbutton. This is the
recommended setting.
— When the switch is in the manual position, the chassis is powered
up by the Inhibit input signal on the rear panel INHIBIT/VOLTAGE
MON DB-9 connector.
This DB-9 connector provides access for testing of internal power supply
voltages. The voltages (by Pin #) are: (1) Logic Gnd, (2) +5 VDC, (3) Rsrvd, (4)
+3.3 VDC, (5) Inhibit [Low], (6) +12 VDC, (7) Rsrvd,
(8) -12 VDC, (9) Logic Gnd.
This BNC connector is not used by the E6640A test set. The front panel 10 MHz
OUT connector should be used instead.
This BNC connector is not used by the E6640A test set. The front panel REF IN
connector should be used instead.
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