Setting the DCE/DTE Switch | Patton electronic 2085 guide

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OFF

Figure 3. Close-up of DIP switch showing “ON” and “OFF” positions

3.1 SETTING THE DCE/DTE SWITCH

For your convenience, the Model 2085 has an externally accessible DCE/DTE switch. If the device connected to the Model

2085 is a modem or multiplexer (or is wired like one), set the switch to “DTE”. This setting causes the Model 2085 to behave like Data Terminal Equipment and transmit data on pin 2. If the device connected to the Model 2085 is a PC, terminal or host computer (or is wired like one), set the switch to “DCE”. This setting causes the Model 2085 to behave like Data Communications Equipment and transmit data on pin 3.

3.2 DIP SWITCH CONFIGURATION

The eight switches on switch set S1 (see Figure 3, above) configure the Model 2085 for echo mode, carrier control method, RTS/CTS delay, “transmit off” impedance, receive impedance, and 2- wire/4-wire operation. These switches are located internally on the Model 2085's PC board. To access switch set S1, use a small flat blade screwdriver to pop open the Model 2085's case as shown in Figure 4, below.

Figure 4. Opening the Model 2085's plastic case with a small screwdriver

3.3 DIP SWITCH SETTINGS

All possible settings for the Model 2085’s configuration switches are presented in Figure 5 (below). Following Figure 5 is a detailed description of each switch function. If you have additional questions, contact Technical Support at (301) 975-1000.

S1 SUMMARY TABLE

Position	Function	Factory Default

S1-1*	“Transmit Off” Impedance	Off
S1-2*	“Transmit Off” Impedance	Off}	High Z
S1-3	RTS/CTS Delay	On	8 msec

S1-4	“ECHO” Mode	Off	Echo Off

S1-5	Carrier Control	On	RTS Cont.

S1-6	Receive Impedance	On	120 Ohm

S1-7*	2-Wire/4-Wire	On
S1-8*	2-Wire/4-Wire	On }	2-Wire

Figure 5. Summary of DIP switch default settings for set S1

*Note: Switches S1-1 & S1-2 should be switched simultaneously. Switches S1-7 & S1-8 should also be switched simultaneously.

S1-1 and S1-2: “Transmit Off” Impedance

Switches S1-1 and S1-2 are set together to determine whether the receiving device “sees” the impedance of the Model 2085’s transmitter as being “high” or “intermediate” when the transmitter is turned off. The “intermediate” setting is useful in half-duplex environments where the receiving device does not respond well to the “high” setting.

S1-1	S1-2	Setting
On	On	Intermediate Impedance
Off	Off	High Impedance

S1-3: RTS/CTS Delay

The setting for switch S1-3 determines the amount of delay between the time the Model 2085 “sees” RTS and when it sends CTS. Note: RTS/CTS Delay setting should be based upon transmission timing.

S1-3	Setting
On	8 mSec
Off	no delay

2085 specifications

The Patton Electronics 2085 is a robust and versatile solution designed for efficient data communication over twisted pair lines. Ideal for both residential and industrial applications, this device guarantees reliable performance and high-quality data transfer.

One of the main features of the Patton Electronics 2085 is its capability to support high-speed data transmission, making it an excellent choice for users requiring efficient connectivity. With a data rate of up to 10 Mbps, it ensures that large volumes of data can be transferred quickly, accommodating the increasing demand for speed in modern networks.

Another significant characteristic of the 2085 is its advanced modulation techniques, which include Carrierless Amplitude Phase (CAP) and Discrete Multitone (DMT) modulation. These technologies enhance the reliability of data transmission by maximizing the use of existing telephone lines. With these modulation techniques, users can expect stable connections even in challenging environments, demonstrating the device's resilience.

The Patton 2085 is built with versatility in mind, offering various operating modes. It can function as a simple transparent modem or as a more complex remote access server. This dual functionality caters to a broad range of applications, from connecting remote terminals to accessing local area networks.

Furthermore, the unit boasts an easy-to-use interface, facilitating seamless installation and configuration. The front panel includes LED indicators to provide real-time feedback on the link status and power. This attention to user experience simplifies troubleshooting and ensures that users can maintain optimal performance.

In terms of connectivity, the 2085 features standard RJ-45 ports for Ethernet connections, allowing for straightforward integration into existing setups. The device operates well in point-to-point and multipoint configurations, providing flexibility for varying network topologies.

Security is also a paramount feature of the Patton Electronics 2085. It includes built-in encryption capabilities, safeguarding against unauthorized access and data breaches. This makes it particularly suitable for sensitive environments where data integrity is a critical requirement.

In conclusion, the Patton Electronics 2085 stands out as an effective solution for those seeking reliable and high-speed data transmission over twisted pair lines. With its impressive feature set, advanced technologies, and user-friendly design, it remains a compelling choice in the realm of electronic communications. Whether utilized in industrial setups or home networks, the 2085 delivers solid performance and adaptability to meet diverse connectivity needs.