Unit 2: Technical Data

INTERFACE SELECTION

This unit presents the printer interface types and their specifications. These specifications include detailed information to assist in the selection of the most appropriate method for the printer to interface with the host. The five acceptable interface methods are:

RS232C High-Speed Serial

IEEE1284 Parallel

Universal Serial Bus (USB)

Bluetooth

Local Area network (LAN) Ethernet

802.11g Wireless

Following the selection of the desired interface, proceed to the next unit for instructions on how to configure the printer for that interface type.

WARNING: NEVER CONNECT OR DISCONNECT INTERFACE CABLES (OR USE

A SWITCH BOX) WITH POWER APPLIED TO EITHER THE HOST OR THE

PRINTER. THIS MAY CAUSE DAMAGE TO THE INTERFACE CIRCUITRY IN THE

PRINTER/HOST AND IS NOT COVERED BY WARRANTY.

RS232C HIGH-SPEED SERIAL INTERFACE (25-PIN)

 

INTERFACE SPECIFICATIONS

 

 

Asynchronous ASCII

Half-duplex communication

 

Bi-Directional Communication

Data Transmission Rate

600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps

 

 

Transmission Form

Start, b1, b2, b3, b4, b5, b6, b7, b8, Stop (b8 will be omitted if using 7 bit oriented)

 

 

Data Length

7 or 8 bit (selectable)

 

 

Stop Bit

1 or 2 bit (selectable)

 

 

Parity Bit

ODD, EVEN, NONE (selectable)

 

 

Codes Used

ASC II Character Codes: 7 bits, Graphics: 8 bits

 

 

Control Codes

STX (02H), ETX (03H), ACK (06H), NAK (15H)

 

 

Connector (Printer Side)

DB-25 Male (equivalent)

 

 

Cable Connector

DB-25 Female (equivalent)

 

 

Cable Length

5 meters or less.

 

 

Signal Levels

High = +5V to +12V, Low = -5V to -12V

 

 

Protocol

Ready/Busy, X-On/X-Off, Protocol for Driver, Status2, Status3, Status4, Status5

 

 

Figure 3-5, Serial Connector Pin Assignments

CT4i Series Operator Manual

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Image 14
SATO ct4i manual Interface Specifications, Interface Selection