Appendix B

Remote Connectors

Remote Connector

The rear-panel REMOTE connector (shown in Figure B-1) is a 25-pin sub miniature D-type with female contacts.

Table B-1 shows pin assignments.

13

1

25 REMOTE ! 14

Figure B-1. Rear panel REMOTE connector.

Table B-1. Remote Pin Functions and Signal Requirements

Pin No.

Function

Signal Requirement

Miscellaneous Information

 

 

 

 

1

RGB/YRGB

+10 V for RGB/

≈9 div of sweep.

 

Staircase Input

YRGB

 

 

 

 

(Staircase/external horizontal and

 

 

 

RGB/YRGB selections are made

 

 

 

through the menu.)

 

External Hori-

 

 

 

zontal Input

 

10 div. of horiz. deflection.

 

 

0 -- +5 V Sawtooth

 

 

 

 

 

2

Ground

 

 

 

 

 

 

3

Staircase / Ext.

Ground (TTL low)

Grounding this pin enables the

 

Horizontal En-

 

function. (Staircase or external

 

able

 

horizontal selected by menu.)

 

 

 

 

1740A/1750A Series Waveform/Vector Monitor User Manual

B-1