Tektronix 1740A/1750A - Manual (Page 38)

At A Glance
1740A/1750A Series Waveform/Vector Monitor User Manual
2-8
Rear-Panel Connectors
The following is an overview of rear-panel connectors.
Figure 2-4 shows the 1750A rear panel.
Loop-Through Inputs
H
INPUT
s
A, A1, A2, A3, B, B1, B2 , and B3 are passive
loop-through video inputs, compensated for 75
Ω.
The front-panel INPUT switch settings determine
which channel(s) are displayed. The eight inputs can
be configured for composite or component video
signals.
H
EXT REF is a 75
Ω compensated loop-through
synchronization input. Internal or external reference
is selected through the front-panel
REF EXT switch;
the LED lights to show when external is selected.
The instrument will operate from external references
of composite video or black burst.
Outputs
H
PIX OUT is a 75
Ω compensated output of the video
signal selected by the front-panel INPUT switches.
This signal has bright-up in LINE SELECT mode, and
is used to drive a picture monitor. PIX OUT strobe is
not present below line 11.
Multi-Pin Connectors
H
REMOTE is a 25-pin subminiature D-type connector
which uses TTL signal or ground closures to provide
remote control of many front-panel functions. For
more information, see page 3-25 and page B-1.
H
RS232 is a 9-pin subminiature ‘D-type connector that
provides a serial interface for remote control. The
RS232 interface is not supported at the time of this
writing.