Parallel Interface
Parallel Port Features
The printer can have one of two parallel interfaces:
An IEEE 1284-A 25-pin, D-shell connector, with pin-outs that interface to a standard IBM PC parallel printer interface with a one-to-one cable. Or, an IEEE 1284-B, which is a standard Centronics 36-pin connector.
The following table lists interface signals and corresponding pins:
|
25-pin Connector |
36-pin Connector |
Signal |
Description |
Direction |
|
Pin 1 |
Pin 1 |
STROBE |
Clock data to printer |
Host to Printer |
|
Pins 2-9 |
Pins 2-9 |
D0 - D7 |
Data |
Host to Printer |
|
Pin 10 |
Pin 10 |
ACK\ |
Printer accepted data |
Printer to Host |
|
Pin 11 |
Pin 11 |
BUSY |
Printer busy |
Printer to Host |
|
Pin 12 |
Pin 12 |
PE |
Paper Out/Status |
Printer to Host |
|
Pin 13 |
Pin 13 |
SLCT |
Printer selected |
Printer to Host |
|
Pin 14 |
Pin 14 |
AUTOFD |
Autofeed paper |
Host to Printer |
|
Pin 15 |
Pin 32 |
FAULT\ |
Printer error |
Printer to Host |
|
Pin 16 |
Pin 31 |
INIT\ |
Initialize printer |
Host to Printer |
|
Pin 17 |
Pin 36 |
SLIN |
Select printer |
Host to Printer |
|
|
Pin 17 |
FG |
Frame ground |
Printer to Host |
|
- |
Pin 18 |
+5V |
Peripheral logic high |
Printer to Host |
|
Pins 18-25 |
Pins 16, 19-30 |
GND |
Ground |
|
Signal Levels
Voltage levels 0 V and +5 V (nominal)
Logic levels
Logic one
Driver +2.4 V to +5 V
Receiver +2.0 V to +5 V
Logic zero
Driver 0 V to +0.4 V
Receiver 0 V to +0.8 V
Current requirements
Logic one Source 0.25 ma at +2.4 V
Logic zero Sink 16 ma
Line termination
Data and control 3.3k ohm to +5 V
Strobe 1.2k ohm to +5 V
RS-232 Serial Interface
Serial Port Features
The serial port features are as follows:
Baud Rates 300, 600, 1200, 2400, 4800, 9600, 19.2K, 38.4K, and 57.6K
Bit Patterns 8-bit no parity; 8-bit odd; 8-bit even; 7-bit no parity; 7-bit odd; 7-bit even
Flow Control DTR and XON/XOFF
|
9-pin |
25-pin |
Signal |
Description |
|
Pin 1 |
Pin 8 |
|
Not Connected |
|
Pin 2 |
Pin 3 |
RX |
Receive Data |
|
Pin 3 |
Pin 2 |
TX |
Transmit Data |
|
Pin 4 |
Pin 20 |
DTR |
Data Terminal Ready |
|
Pin 5 |
Pin 7 |
GND |
Signal Ground |
|
Pin 6 |
Pin 6 |
DSR |
Data Set Ready |
|
Pin 7 |
Pin 4 |
RTS |
Request to Send |
|
Pin 8 |
Pin 5 |
CTS |
Clear to Send |
|
Pin 9 |
Pin 11 |
|
Not Connected |
Signal Voltage and Current levels
The serial interface meets EIA RS232 interface specifications:
Voltage Levels Max +-15 Volts
Min +- 3 Volts
Mark = Off = -3 to –15 Volts
Space = On = +3 to +15 Volts
Because both the host and printer are DTE's (Data Terminal Equipment), they use the same serial port pin-outs. If the cable that is used to connect the host to the printer is a pin-to-pin inter-connect, it will not work. Therefore, a null modem or turn-around cable must be used to interconnect the host and the printer.
The Series 90 Printer supports dual cash drawers with status. The driver in the printer is capable of supplying 24 VDC at up to 1.0 amps and 250 milliseconds. The Series 90 Printer defines cash drawer closed as switch open. If the drawer is disconnected, it will be viewed by the printer as closed. Since the printer does not act on the cash drawer status, the application can interpret cash drawer status any way it wants.
There are two cash drawer connectors. One is configured as Cash Drawer 1, the other as Drawer 2.
The pin out is as follows:
|
Function |
Drawer 1 |
Drawer 2 |
|
Drawer Drive + |
Pin 4 |
Pin 4 |
|
Drawer Drive - |
Pin 5 |
Pin 1 |
|
Status Signal |
Pin 2 |
Pin 2 |
|
Status Ground |
Pin 3 |
Pin 3 |
|
Frame Ground |
Pin 6 |
Pin 6 |
|
No Connect |
Pin 1 |
Pin 5 |
|
Function |
Drawer 1 |
Drawer 2 |
|
Drawer Drive + |
Pin 4 |
Pin 4 |
|
Drawer Drive - |
Pin 2 |
Pin 5 |
|
No Connect |
Pin 5 |
Pin 2 |
|
Status Signal |
Pin 3 |
Pin 3 |
|
Status Ground |
Pin 6 |
Pin 6 |
|
Frame Ground |
Pin 1 |
Pin 1 |
Note: Cash Drawer 2 can be factory configured to be the same as Drawer 1.
Fax: 203.949.9048
Drivers