USER
MANUAL
MODEL 2035
and Model 2035-25M
Parallel to Serial/
Serial to Parallel
Interface Converters
SALES OFFICE
Part #07M2035-B
Doc. #102051U, Rev. C (301) 975-1000
Revised 1/23/08
TECHNICAL SUPPORT
(301) 975-1007
C
E
R
T
I
F
I
E
D
An ISO-9001
Certified Company
1.3 SERVICE
All warranty and non-warranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization number on the outside of the shipping
container. This number may be obtained from Patton Electronics
NOTE: Packages received without an RMA number will not be
accepted.
Patton Electronics' technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Model 2035. Technical Support hours: 8AM to 5PM EST, Monday
through Friday.
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2.0 GENERAL INFORMATION
Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems
arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Technical Support: (301) 975-1007;
2.1 FEATURES
• Converts parallel data to serial data and vice versa
• Automatic parallel and serial sensing and selection
• Automatic DCE/DTE sensing and selection
• Serial data rates to 115.2 Kbps
• No AC power required
• Supports both software and hardware flow control
• Ultra-miniature size
• A five-state LED monitors status and diagnostics
• Variety of connectors and cable lengths
• Made in USA
2.2 DESCRIPTION
The Patton Model 2035 Parallel to Serial Converters
automatically convert RS-232C serial data to parallel data format and
vice versa. Incorporating advanced microprocessor technology, the
Model 2035 is able to automatically sense and select parallel and serial
modes, as well as DTE/DCE modes. The Model 2035 requires no AC
power and supports serial data rates to 115.2 Kbps.
For easy configuration, the Model 2035 features a convenient set
of configuration switches. The configuration switches allow the user to
control baud rate, parity, word length and flow control. An easy-to-read
LED indicator displays status and operating condition.
Housed in an ultra-miniature ABS plastic case, the Model 2035
measures only 2.62" x 1.26" x .76". The Patton Model 2035 comes
equipped with a DB-25 female connector on the serial side, and a
Centronics 36 pin male connector on the parallel side. A six foot cable
is built-in. The Model 2035-25M replaces the Centronics 36 pin
connector with a DB-25 male connector.
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3.0 CONFIGURATION
The Model 2035 is simple to install and designed for excellent
reliability. The following instructions will help you set up and install the
converters properly. If you have any questions, please call Patton
Technical Support at (301) 975-1007.
3.1 CONFIGURATION SWITCHES
The Model 2035 uses a set of eight external DIP switches (see
Figure 1, below) that allow configuration to a wide range of
applications. Because all eight switches are in one externally
accessible DIP switch package, there is no need to open the case for
configuration. The configuration switches allow you to select data
rates, parity, word length and flow control selection. The following
section describes all switch locations, positions and functions.
Configuration
Switch
Figure 1. The location of the Model 2035 configuration switches
The Model 2035 uses a miniature configuration switch package.
To configure your unit, use a small screwdriver and gently push each
switch to its proper setting. The ON and OFF positions are shown in
Figure 2., below. Default settings for the DIP switches are shown in the
table on the following page. Detailed settings follow the table.
1
2
3
4
5
6
7
8
OFF
Figure 2. The miniature configuration switch package
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DIP SWITCH SUMMARY TABLE
Function
Position
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
Factory Default
Flow Control
LED Indicator
Off
On
Off
Off
Off
Off
Off
Off
Hardware
Enabled
Data, Parity, Stop Bits
Data, Parity, Stop Bits
Data, Parity, Stop Bits
Data Rate
8B, NP, 1S
38400 bps
}
}
Data Rate
Data Rate
3.2 DETAILED SWITCH SETTINGS
This section provides detailed information about the function of
each DIP switch and lists all possible settings.
Switch 1: Hardware/Software Control
The setting for Switch 1 determines whether these interface
converters will control either hardware or software flow control.
Flow Control SW1
Hardware
Software
OFF
ON
Switch 2: Used to Enable/Disable the LED Indicator
The setting for Switch 2 determines whether the LED indicator is
enabled or disabled.
LED
Enabled
Disabled
SW2
ON
OFF
5
Switch 3 through 5: Data, Parity and Stop Bit
Switches 3 through 5 are used to specify the data, parity and stop
bits. The following table shows the settings that may be used:
Stop
Bit
Data
Parity
SW3
SW4 SW5
7B
7B
7B
7B
7B
8B
8B
8B
EP
OP
NP
EP
OP
EP
OP
NP
1S
1S
2S
2S
2S
1S
1S
1S
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
OFF ON
OFF ON
ON OFF
ON OFF
OFF OFF
OFF OFF
Switches 6 through 8: Frequency and Data Rate
Switches 6 through 8 determine the frequency and data rate. The
following chart shows the settings that may be used.
Data Rate
SW6 SW7 SW8
1,200
2,400
4,800
OFF
ON
ON
OFF
ON
OFF
ON
OFF
OFF
ON
ON
ON
OFF OFF
OFF OFF
ON
ON
ON
OFF
ON
9,600
19,200
38,400
57,600
115,200
ON
OFF
OFF
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4.0 INSTALLATION
The Patton Model 2035 is very simple to install. Once you have
configured the DIP switches, just plug it in like a normal cable and
you're ready to go. Figure 3 illustrates the proper connections for the
standard cables. If you have special-ordered a non-standard
connector, your connections may be different.
Model 2035
Printer
PC
Figure 3. Installing the Model 2035
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5.0 OPERATION
Once your interface converter is properly configured and installed,
it should operate transparently—as if it were a standard cable
connection. Operating power is derived from the RS-232 data and
control signals; there is no “ON/OFF” switch.
5.1 LED STATUS MONITORS
The Model 2035 features an easy-to-read status LED that glows
red to indicate the condition of the transmission line. Figure 1 shows
the location of the LED. The following chart describes the LED's
various functions.
LED Codes
●
●
●
—
●
———
●
●
—
●
———
Computer is sending data
———
●
———
●
———
Serial device is connected; computer is
not sending data
●
●
———
●
●
———
Both serial and parallel devices are
connected; computer not sending
data
●
●
—
●
———
●
—
●
———
Printer not ready, data held in buffer
Computer ignoring flow control, data lost
●
●
●
———●
●
●
●
The red LED indicator blinks to show data activity. However, since
there is only one indicator, it uses different LED codes to demonstrate
various messages. The following chart describes these codes:
Key:
●
Blink
Short pause
Long pause
—
———
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APPENDIX A
PATTON MODEL 2035 SPECIFICATIONS
Interface:
Asynchronous., RS-232C compatible
Connectors:
Serial, DB-25F; parallel, Centronics 36 pin
M
Cables:
Six foot (1.8m) integral cable
1.2 - 115.2 Kbps
Data Rates:
LED:
LED displays status and operating condition
Power Supply:
None required; uses power from RS-232C
interface
Data Format:
7 or 8 bits; 1 or 2 stop bits; even, odd or no
parity
Temperature Range: 0-60°C (32-140°F)
Altitude:
0-10,100 feet
Humidity:
Dimensions:
Weight:
5 to 95% non-condensing
2.62" x 1.26" x .76"
2 oz. (56.8 grams)
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APPENDIX B
PATTON MODEL 2035 INTERFACE CONNECTIONS
36 PIN CENTRONICS PARALLEL PORT CONNECTIONS
Pin
Description
Direction
1
2
3
4
5
6
7
8
9
10
11
12
13
18
32
Strobe
Output
Data bit 0
Data bit 1
Data bit 2
Data bit 3
Data bit 4
Data bit 5
Data bit 6
Data bit 7
Acknowledge
Busy
Paper end
Select
+5 volts
Error
(16, 17, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 33, 36)
I/O
}
Input (active low)
Input (active high)
Ground
}
Note: All other pins are unconnected
DB-25 SERIAL PORT CONNECTIONS
Pin
Name
Description
1
2
FG
TXD
Connected to pin 7 with optional jumper
Serial Transmit Data; also used as a
power source
3
RXD
Serial Receive Data; also used as a power
source
4
5
6
7
RTS
CTS
DSR
SG
Request to Send; also used as a power source
Clear to Send; also used as a power source
Data Set Ready; also used as a power source
Signal Ground
8
DCD
Carrier Detect; also used as a power source
9
20
+V in
DTR
Used as a power source
Data Terminal Ready; also used as a power
source
Note: All other pins are unconnected
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APPENDIX C
PATTON MODEL 2035 BLOCK DIAGRAM
Copyright ©
Patton Electronics Company
All Rights Reserved
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Dear Valued Customer,
Thank you for purchasing Patton Electronics products! We do
appreciate your business. I trust that you find this user manual helpful.
We manufacture one of the widest selections of data
communications products in the world including CSU/DSU's, network
termination units, powered and self-powered short range modems, fiber optic
modems, interface converters, baluns, electronic data switches, data-line surge
protectors, multiplexers, transceivers, hubs, print servers and much more. We
produce these products at our Gaithersburg, MD, USA, facility, and can
custom manufacture products for your unique needs.
We would like to hear from you. Please contact us in any of the
following ways to tell us how you like this product and how we can meet your
product needs today and in the future.
Web:
(301) 975-1000
(301) 975-1007
(301) 869-9293
Sales E-mail:
Support E-mail:
Phone - Sales
Phone - Support
Fax:
Mail:
Patton Electronics Company
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
We are committed to a quality product at a quality price. Patton
Electronics is ISO 9001 certified. We meet and exceed the highest
standards in the industry (CE, UL, etc.).
It is our business to serve you. If you are not satisfied with any
aspect of this product or the service provided from Patton Electronics or its
distributors, please let us know.
Thank you.
Burton A.Patton
Vice President
P.S. Please tell us where you purchased this product.
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