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3.0 CONFIGURATION
The Model 1005 is designed to be easy to use. There are no
internal jumpers or configuration switches to set, so there is no need to
open the case to configure the unit (you may need to open the case for
wire connection—refer to Section 4.0). The only configuration
necessary for operation is proper setting of the external DCE/DTE
switch.
The figure below shows the location of the DCE/DTE switch on the
PC board, as well as the location of the terminal block and surge
suppressors (“S” model only).
3.1 SETTING THE DCE/DTE SWITCH
For your convenience, the Model 1005 has an externally
accessible DCE/DTE switch (see diagram below). If the device
connected to the Model 1005 is a modem or multiplexer (or is wired like
one), set the switch to “DTE”. This setting causes the Model 1005 to
behave like Data Terminal Equipment and transmit data on pin 2.
If the device connected to the Model 1005 is a PC, terminal, or
host computer (or is wired like one), set the switch to“DCE”. This
setting causes the Model 1005 to behave like Data Communications
Equipment and transmit data on pin 3.
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 at (301) 975-1007.
2.1 FEATURES
• Ideal for UNIX operating systems
• Range to 17 miles (27.2 km)
• Data rates to 19,200 bps
• No AC power or batteries required
• Carrier sense handshaking
• Useful for troubleshooting or monitoring a line
• Very thin case for closely spaced computer ports
• Available with RJ-11, RJ-45 or terminal block with strain relief
• External DCE/DTE switch
• Connects directly to the RS-232 port
• Compatible withPatton Models 1000, 1004, 1009 and 1015
• Made in USA
2.2 DESCRIPTION
The Patton Model 1005Carrier Sense Short Range Modem
allows RS-232 UNIX systems to communicate up to 17 miles (27.2 km)
over two unconditioned twisted pair cable. Supporting data rates to
19.2 Kbps, the Model 1005 requires no AC power or batteries.
The Model 1005 has a unique carrier sense feature, which
automatically detects the presence of a carrier on the line. This is
particularly useful in UNIX environments, where the host must see a
carrier before it sends a logon screen to the terminal. This feature also
plays an important role in troubleshooting, where the presence or
absence of a carrier indicates positive or negative line integrity.
Measuring only 2.66” x 2.10” x .73” (6.76 x 5.33 x 1.85 cm), the
Model 1005 is housed in a pop-open ABS plastic case. The Model
1005 comes with a male or female DB-25 connector and a choice of
interfaces (RJ-11 jack, RJ-45 jack, or terminal blocks with strain relief).
For surge handling capability, the Model 1005S is compliant with IEC
801.5 level 2, 1kV.
3 4
DCE/DTE
Switch
Surge
Suppressors
(1005S only)
Terminal
Block