PS-100/SP-100
Parallel to Serial or
Serial to Parallel
Converters
The PS-100/SP-100 one-way converter is a low
cost converter device. The purpose of the device
is either to convert a parallel (Centronics) inter-
face into a Serial (RS-232C) interface or to con-
vert a Serial interface into a parallel interface. The
main difference between the PS-100 and the SP-
100 is that the PS-100 converts parallel signal to
serial signal and the SP-100 converts serial signal
to parallel signal.
1-2 Operation
Function Specificatio n
Power A dapter AC9V, 300mA
Serial Port(DCE) RS-232C, DB25 Female
Paralle l Po rt Centronics , 36-p in M ale
Interface Direction P
→
S, S
→
P
Reset Key Reset Buffer System
Indicator(LED) Display System Status
Handshake Hardware and Xon-Xoff
Baud Rate from 300,….,9600, to 19200
Data Bits 7 bits or 8 bits
Parity Bits None, Even or Odd
Driv in g A bility Up to 9M(30ft)
Enclosure Plastic
Weight 220 grams
Dimension 68W ×125L×20H mm
1-4 PS100/SP100 SPECIFICATIONS
User's Manual
1-3 CONFIGURING THE PS-100/SP-100
1. Gather all the information you can about the
serial port and the parallel port on the host and
peripheral.
2. Power off the devices which you are going
to connect with.
3. Setup the DIP switches on the converter ac-
cording to the serial information. (transmission
Baud rate, data length, stop bit and parity
check.)
4. Slide the DTE/DCE switch to cooperate with
the serial device. (See Note 2)
5. Connect converter to host and peripheral with
suitable extension cables.
6. Plug in the power plug head of the power
adapter into the power jack of PS-100/SP-100.
7. Turn on all the connected devices. The con-
verter will be ready to work.
PS: After you setup a new DIP SWITCH SET-
TING, you have to press the "Reset Button."
Then the Ready LED will flash twice, indicat-
ing the unit has started running the new set-
tings.
The operation and installation of the PS-100/SP-
100 are very simple and easy. For the PS-100, the
user only needs a 25-pin to 36-pin cable linked
from DEVICE A parallel port LPT1 (or LPT2) to
PS-100 parallel port, then plug in the PS-100 Se-
rial ports directly to DEVICE B Serial port.Finally
plug in the power adapter plug into the PS-100
power jack. For the SP-100, the user only needs a
25-pin to 25-pin cable linked from DEVICE C
serial port COM1(or COM2) to SP-100's serial
port, then plug the SP-100's parallel port directly
to DEVICE D. Finally, plug in the power adapter
plug into the SP-100 power jack.
1-1 PS-100/SP-100 INTRODUCTION
Note
1) When the setting for Data Bits is "7" and
parity is none, there are 2 stop bits. In all
other modes the STOP BIT is 1 stop bit.
2) The mode of the serial port of SP-100/
PS-100 is compatible with DTE or DCE
mode. Normal connection to PC with one to
one cable required setting to DCE.
1-5 DIP SWITCH SETTING
PS-100/SP-100 Bottom View
2. Handshake
OFF=H/ W
ON=XON/XOFF
3. Data BITS
OFF=8
ON=7
6-8 Baud Rate
111
→
9600
110
→
19200
101
→
19200
100
→
300
011
→
600
010
→
1200
001
→
2400
000
→
4800
5. Parity Type
OFF=ODD
ON=EVEN
PC
ON DIP
1 2 3 4 5 6 7 8
1. Direction
No n
4. Parity Setting
OFF=DISABLE
ON=DISABLE
DCE DTE Switch
RS-232C Serial Interface definition(DB25)
Pin Name Function Data Direction
2
TXD Transmit Data DTE
→
DCE
3
RXD Receive Data DTE
←
DCE
4
RTS Request to Send DTE
→
DCE
5
CTS Clear To Send DTE
←
DCE
6
DSR Data Set Ready DTE
←
DCE
7
GND Ground 0V
8
DCD Data Carrier Detect DTE
←
DCE
20
DTR Data Terminal Ready DTE
→
DCE
¡Ï
AC 9V
200mA
Pin No. Name Function
1
STB Data Strobe
2-9 D0-D7 Data Bu s
10
ACK Data Acknowledge
11
BUSY Device Busy Signal
12
PE Paper Empty (Pull Down)
13
SLCT
Device Select (Pull Down)
14
AF Auto Feed (Pull up)
15 NC Open
16-17 GND Grou nd
18 NC Open
19-30 GND Grou nd
31 INIT In itial Sig n al (Pu ll u p )
32 ERROR Error Signal (pull up)
33 GND Ground
34-35 NC Open
36 SLCT-1 Ground
APPENDIX
CENTRONICS INTERFACE SPECIFICATION
Application
25pin-to-36pin
A
PC
PS100
B
serial
printer
LPT1 printer port
C
25 to 25
SP100
D
parallel
com1 serial port
25 to 25
1=ON
0=OFF
READY
PARALLEL
SERIAL
Display System Status
Reset Switch
DTE
DCE
Power Jack
DCE/DTE Slide-sw
1-6 Outlook Description
Tel:(886) 2 2659.1021
Fax:(886) 2 2799.1355/ 2 2659.0237
E-mail:inf[email protected]
http://www.ctcu.com
printer
ISO 9001
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