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
•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
| INTERFACE SPECIFICATIONS |
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Asynchronous ASCII | |
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Data Transmission Rate | 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps |
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Transmission Form | Start, b1, b2, b3, b4, b5, b6, b7, b8, Stop (b8 will be omitted if using 7 bit oriented) |
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Data Length | 7 or 8 bit (selectable) |
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Stop Bit | 1 or 2 bit (selectable) |
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Parity Bit | ODD, EVEN, NONE (selectable) |
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Codes Used | ASC II Character Codes: 7 bits, Graphics: 8 bits |
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Control Codes | STX (02H), ETX (03H), ACK (06H), NAK (15H) |
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Connector (Printer Side) | |
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Cable Connector | |
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Cable Length | 5 meters or less. |
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Signal Levels | High = +5V to +12V, Low = |
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Protocol | Ready/Busy, |
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Figure 3-5, Serial Connector Pin Assignments
CT4i Series Operator Manual |