Patton electronic 1000S user manual Features, Description, Setting the DCE/DTE Switch

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

• New design uses Surface Mount Technology

• Full duplex

• Data rates to 19.2 Kbps

3.0 CONFIGURATION

The Model 1000 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.

Figure 1, 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).

• Range to 17 miles (27.2 km)

• No AC power required

• External DCE/DTE switch

• Uses modular plugs (RJ-11 or RJ-45) or terminal posts for

twisted pair connections

• Very thin case (.75") for closely spaced computer ports

• New snap-together, pop-open case

• Surge protected (Model 1000S only)

• Made in USA

DCE/DTE

Switch

DCE DTE

Surge

Suppressors (1000S only)

Terminal

Block

2.2 DESCRIPTION

The Model 1000 Asynchronous Short Range Modem uses the latest surface mount technology to attain high quality short range modem performance in a low profile package. The unit operates full duplex at data rates to 19.2 Kbps over 2 twisted pair. Requiring no AC power or batteries, the Model 1000 supports distances to 17 miles (27.2km).

With an externally accessible DCE/DTE switch, the Model 1000 allows easy connection to any device without opening the unit. Three enclosure options allow terminations to be via RJ-11, RJ-45 or terminal blocks. A unique strain relief prevents thin twisted pairs from breaking or pulling loose.

The Model 1000S is a surge protected version of the Model 1000 that uses the latest in bi-directional, clamping, transient suppressors to protect itself and connected equipment against harmful transient discharges. For surge handling capability, the Model 1000S is compliant with IEC 801.5 level 2, 1kV.

Figure 1: Location of Key Components on Model 1000 Printed Circuit Board

3.1 SETTING THE DCE/DTE SWITCH

For your convenience, the Model 1000 has an externally accessible DCE/DTE switch (see diagram below). If the device connected to the Model 1000 is a modem or multiplexer (or is wired like one), set the switch to "DTE". This setting causes the Model 1000 to behave like Data Terminal Equipment and transmit data on pin 2.

If the device connected to the Model 1000 is a PC, terminal or host computer (or is wired like one), set the switch to "DCE". This setting causes the Model 1000 to behave like Data Communications Equipment and transmit data on pin 3 (Default Setting is “DCE”).

DCE DTE

Figure 2: Model 1000 DCE/DTE Switch

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