ADP 4100 Printer
Host Interface Specification
Hardware Interface
The Unit has two RS-232 Asynchronous Serial Communications ports
to interface to the Host system. The physical connection is provided
using two DB-25 female pin connectors marked COMM 1 and COMM
2. The ports are configured as DTE connections and can be used to
connect to an associated DTE host using a null modem cable. The
pinout below provides the basic cabling requirements to connect the
Unit to a PC-type host system (table shown assumes the host system
uses a DTE DB-9 connector).
Host (DTE) PC/AT or equivalent
Signal Flow
XP (COMM 1 and 2)
Pin #, DB-9
Signal Name
Signal Name
Pin #, DB-25F
1
CD
N/A
2
RxD
⇐
TxD
2
3
TxD
⇒
RxD
3
4
DTR
⇒
DSR
6
5
Signal GND
N/A
Signal GND
7
6
DSR
⇐
DTR
20
7
RTS
⇒
CTS
5
8
CTS
⇐
RTS
4,11
9
RING
⇒
The connection from pin 11 to RTS enables the Unit to function with
existing customer cabling. This connection can be removed if
necessary.
The Unit may also have optional hardware interfaces including
Ethernet, USB, and Modem. Custom firmware interfaces can be
written for these and the existing serial interface.
Data Structure
The Unit uses an asynchronous serial data transmission method.
Data is sent based on any combination of the following:
Baud
Data Length
Parity
Stop Bit
1200 - 115,200
7, 8
None, Even, Odd, Mark,
Space
1, 2
ADP 4100 Printer
Installation and Operators Manual
, April 2007
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