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Chapter 2: Installation and wiring
72
Vigilant VS1 and VS2 Technical Reference Manual
Printer wiring
RS-232 cable
DB-25 male
Printer
To RS-232 card
DB-25 serial port
on back of printer
LINE
FEED
FORM
FEED
TOP
SET
SELECT
ALARM
POWER
PITCH
MODE
DB-25 pin connections
PIN 25
PIN 1
DB-25 male
(front view)
Pin 7: COM (black wire)
Pin 20: DTR (green wire)
SA-232 card to printer DB-25 connections
SA-232 card
DB-25
Description
GND
COM (pin 7)
Black wire (ground connection)
RTS
DTR (pin 20)
Green wire (printer supervision)
TXD
RXD (pin 3)
White wire (communication)
RXD
TXD (pin 2)
Red wire (communication)
Computer download wiring
Wiring to a computer:
1. If you have a connected printer, disconnect it.
2. Locate a serial port (COM port) on the back of the computer.
3. Connect the DB-9 end of the RS-232 cable to the COM port on
the back of the computer.
4. Connect the other end of the RS-232 cable to the RS-232 card.
Computer download wiring
RS-232 cable
DB-9 female
Computer
DB-9 COM port
on back of computer
To RS-232 card