Tonghui TH2840 Series - Rear Panel of Scanning Box; HANDLER Interface; Timing Diagram of HANDLER Signal; Distribution and Connection Diagram for HANDLER

70
54321
HANDLER
SCANNER
CYLINDER
TEST LINE
FOOT.C
+ -
N1N9VCC
GO NG S R GND
11) Fixture pin number. In above figure, 1~20/24 is the corresponding pin number.
7.4 Rear panel of scanning box
Introduction to each number on the lower panel
1. TEST LINE: inlet port of the test cable, TH1901L 6-terminal test box is connected to inner part
of TH1901A/B through this line.
2. CYLINDER: 24V DC voltage output terminal, providing the working voltage for TH1901A
solenoid valve.
3. FOOT. C: Used to connect footswitch.
4. SCANNER: Signal control port. Use TH26016 control line to connect the scanning box with
TH2840X through SCANNER port.
5. HANDLER: HANDLER port. Refer to section 7.5 for instruction of HANDLER port.
NOTE: There is a hole in the left panel of TH1901A/B, the inner adjustable potentiometer can be
sued to adjust the volume of beep.
7.5 HANDLER interface
7.5.1 Timing diagram of HANDLER signal
/START
/BUSY
Data Valid
7.5.2 Distribution and connection diagram for HANDLER
The distribution and external circuit of HANDLER signal pin: