AMT Datasouth 4500 Series Manual De Usuario

20

Table 3 lists the RS-232 signals supported by the printer.

Pin #

Signal Description

Signal

Mnemonic

Direction

1

Shield

--

--

2

Received Data

RXD

Input to the printer

3

Transmitted Data

TXD

Output from the printer

4

Clear to Send

CTS

Input to the printer

5

Request to Send

RTS

Output from the printer

6

Data Terminal Ready

DTR

Output from the printer

7

Signal Ground

GND

--

20

Data Set Ready

DSR

Input to the printer

22

 Ring Indicator

RI

Output from the printer

Table 3 - CodeWriter 4500 Series RS-232 Signals

Connecting to DTE (Data Terminal Equipment) host systems with a DB25
connector requires a cable with pin-to-pin wiring and a male DB25 for the
printer (Figure 7). Connecting to a DCE (Data Circuit-terminating Equipment)
device, such as a modem, will require a “NULL-MODEM” style circuit with
appropriate connectors on each end (Figure 8).

Figure 7 – 4500 Series Printer to DTE Host System Cable Diagram

Shield    1

RXD    2

TXD    3
CTS    4
RTS    5

DTR    6

GND    7

DSR  20

RI  22

1   Shield
2   TXD
3   RXD
4   RTS
5   CTS
6   DSR
7   GND
20 DTR
22 RI