Serial interface signals, Usb interface – Compuprint 3046 Programmer Manual User Manual
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The least significant bit of the data bits is sent first after the start bit. The number of data bits is
selected via menu. The parity bit, when present, follows the data bits. The start bit is a logical "0"
and the stop bit is a logical "1". The start and stop bits are used as character framing bits.
• Printer Connector
Male DB9 .
• Drive Capability
Max. 50 feet (15 m) for all supported data rates.
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The following table lists the RS-232/C serial interface signals used:
Pin
Number
Description
Signal
Name
1
Not Connected
5V Power Supply if
necessary
2
Receive Data
RXD
3
Transmit Data
TXD
4
Data Terminal Ready DTR
5
Signal Ground
GND
6
Data Set Ready
DSR
3
3
.
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U
U
S
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B
B
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USB interface accords with USB 1.1 criterion.
Cable connector:
B Type
The following table lists the USB interface signals used:
USB Pin
Description
1
USB 5V Power Supply
2
USB D-
3
USB D+
4
USB GND