- Hewlett-Packard Printer User Manual

Chapter 2 33
Front and Rear Panel Features
Rear-Panel Features
2.2 Rear-Panel Features
1 Power input is the input for the ac line power source. Make sure that the
line-power source outlet has a protective ground contact.
2 DC Power is the input for the dc power source. Refer to the “Power
Requirements” section in the specifications guide for your analyzer.
CAUTION AC line power and dc power should not be plugged in simultaneously.
3 Line Fuse. The fuse is removed by twisting counterclockwise 1/4 turn. Replace
only with a fuse of the same rating. See the label on the rear panel.
4 Service Connector. The service connector is for service use only.
5 Inputs/Outputs (Refer to the specifications guide for more information.)
5a VGA OUTPUT drives an external VGA compatible monitor with
a signal that has 31.5 kHz horizontal, 60 Hz vertical
synchronizing rate, non-interlaced.
5b GATE/HI SWP OUT (TTL) is high when the analyzer is sweeping
or when
Gate (Option 1D6) is active.
5c GATE TRIG/EXT TRIG IN (TTL) accepts the positive edge of an