ADLINK EOS-4000 - Manual (Page 30)

18 Introduction
Table 1-12: Trigger Input/Strobe Output Pin Definitions
1.6.4 Encoder Input Port
The EOS-4000 features a 1-CH encoder input on the rear panel,
based on an onboard digital I/O card supporting features as fol-
lows.
Table 1-13: Encoder Input Configurations
Pin Name IN/OUT Description
1 Trigger 1 IN Line/area trigger (TTL) for CH1
2 Trigger 2 IN Line/area trigger (TTL) for CH2
3 N/A
4 N/A
5 Strobe 1 OUT Strobe output (TTL) for CH1
6 Strobe 2 OUT Strobe output (TTL) for CH2
7 N/A
8 N/A
9 +5V OUT +5V power source
10 GND N/A System digital ground
11 GND N/A System digital ground
12 GND N/A System digital ground
13 GND N/A System digital ground
14 GND N/A System digital ground
15 GND N/A System digital ground
Encoder Input
Item Min. Max. Test Conditions
Terminal resistor 100Ω
Input common mode voltage +/-7V
Terminal resistor:
100Ω
Positive input threshold +0.2V
Negative input low threshold -0.2V
Input signal frequency 10MHz
Ambient
temperature=25°C