NAC Image Technology ST-839, User Manual

Page: 146 / 370

Trigger Input from an External Trigger
Trigger Input from an External
Trigger
The HX-7 has two external triggers called TRIG1 and TRIG2 for trigger input with signals from
other devices or the switch.
4-48
(00400)
■ Connect the External Trigger
External trigger signal specifications from the TRIG connector require TTL level contact input at an isolated
input.
These signals can be easily managed and connected for contact input with one switch and two power cords.
Use in a clean environment without any exterior noise is recommended.
TRIG1 signal specifications: (
 A
9-47) , TRIG1 connector specifications: (
 A
10-29)

The voltage tolerance is -0.5 ～ 5.5Vdc.
１
Connect the BNC cable to the TRIG connector
• Connect the BNC cable to the TRIG connector on the rear
panel.
• Connect the other end of the BNC cable to the trigger
signal output device.
The specifications for the external trigger signals from the TRIG2 connector are current loop input with a
photo capacitor.
The trigger is enabled at an applied voltage of 5V or greater. These signals have a high level of noise
resistance and are suitable for a long cable. We recommend using this input in environments where there is
frequent noise generated such things as static electricity. An external power source is required for this
input.
TRIG2 signal specifications: (

A
9-48), TRIG2 input (REMOTE connector) specifications:(

A
10-27)
Connect to TRIG1
Connect to TRIG2