1b-50
Operation Reference
Function
this section for information about operating these devices.
4. Line Voltage Connector
For information about the line voltage connector or fuse replacement, refer to Chapter 3,
"Installation."
5. HP-IB Connector
This is an IEEE 488.1-1987 connector for controlling the instrument via an external
controller. For information about GPIB operation of the instrument, refer to Chapter 2,
"GPIB Programming."
6. TIMEBASE ADJ and Language Switches
Position one of this switch places the instrument in the timebase adjustment mode. For the
timebase adjustment procedure, refer to Chapter 7, "Adjustments."
Position two of this switch allows you to set the language for remote programming to
either 8656/57-compatible language (1) or to SCPI (0). The language switch is read once at
power-up.
7. External Pulse Input
This connector provides the input for an external TTL signal which is used by the pulse
modulator to modulate the RF signal off and on. This connector is on Option 1E6 only.