4025 Serial I/O To Pc Cable Diagram - evertz 4025 Instruction Manual

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CONNECTOR PINOUTS AND CABLE DIAGRAM

7.2.4. 4025 Serial I/O to PC Cable Diagram

The wiring diagram below shows the correct cable wiring for connecting a
computer to the 4025 Pinouts are given for both DB-25 and DB-9 types of
serial ports connectors found on computers.
4025 Serial I/O
Male 9
Description DB9
Shield
Ground
GND
RS 232 TxD
Ground
The following connections are only required if you want to issue GPI
triggers to the 4025 from Key-Log software running on your computer.
4025 Parallel I/O
Male
Description
GPI
Ground
A 10K ohm resistor must be placed in series with the wire connecting pin 8
of the 4025 parallel I/O connector to the DTR of the computer. A 5 volt zener
diode must be connected with its cathode to pin 8, and the anode to pin 6 of
the 4025 parallel connector.
Use shielded wire for this cable to reduce harmful interference to
surrounding equipment.
Model 4025 Film Footage Encoder Manual
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2
3
4
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5
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6
7
8
9
Figure 7-4: Serial I/O to PC Cable
DB9
8
6
Computer End
Female
DB-25
DB-9 Description
1 5 Ground
3
2 Rs 232 Receive
5 Ground
7
Computer End
Female
DB-25 DB-9 Description
20 4 DTR
7 5 Gnd
7-4