SPEX 270M User Manual

270M Rapid Scanning Imaging Spectrograph
Appendix B: 270M Interface Connector Pin Assignments
Standard Spectrometer 1/0 (TTL} Interface connector
Pin#
Name
9
Select Clock
22 Ground
10 Direction
23 Ground
11
Step
24
Ground
12 Index
25
Ground
13
Sense
Function
Input to step through addressable devices
For Select Clock ·
Input to assert direction for device to move. High
is forward, generally toward longer wavelengths.
For Direction
Pulse input to move a stepping device. Negative
true (normally high) clocks on rising edge.
For Step
Output, low when wavelength drive is selected
For Sense and Index
Output gives phase or position of device selected
Optional SPEX232 Interface connector
Pin#
2
3
6
7
22
52
Name
TXD
RXD
DTR
Ground
+SV
Function
Transmits data from the SPEX-232
Receives data
Data Terminal Ready (to receive a byte)
Reference/ return for all other lines
To assert other lines high as required for
additional handshaking
Reviaed November 24, 1992
Leica Microsystems, Inc.'s Ex. 1033
Page 61 of 89

SPEX 270M Specifications

General

Brand	SPEX
Model	270M
Category	Measuring Instruments
Language	English