Patton electronic 2085 4 2-WIRE Connection, Signal RS-485 Signal, Wiring for Multipoint Circuits

Page 8

9.Insert the strain relief assembly with the wire going through it into the slot in the bottom half of the modem case and set it into the recess in the case.

10.BEND the top half of the case as necessary to place it over the strain relief assembly. Do not snap the case together yet.

11.Insert one captive screw through a saddle washer and then insert the captive screw with the washer on it, through the hole in the DB-25 end of the case. Snap that side of the case closed. Repeat the process for the other side. This completes the cable installation process.

4.1.42-WIRE CONNECTION

Most RS-485 devices employ a two-wire, half duplex configuration. When using this configuration, be sure to first set the Model 2085 to "two wire" mode—then use only the transmit (XMT) pair as shown on the following page.

13

2085 SIGNAL

RS-485 SIGNAL

XMT+

+

XMT-

-

The above wiring pattern applies regardless of whether you are making the RS-485 connection via DB-25, RJ-11, RJ-45 or terminal blocks. For specific wiring instructions, please refer to the previous pages of Section 4.

4.2 WIRING FOR MULTIPOINT CIRCUITS

The Model 2085 supports multi-point applications using either a star or daisy chain topology. Both topologies require special wiring, as well as specific DIP switch settings for master and slave units. Note: Refer to Section 3.2.2 for multipoint DIP switch settings.

4.2.1 STAR TOPOLOGY

Using a star topology, you may connect several Model 2085s together in a master/slave arrangement. Maximum distance between the units will vary based upon the number of drops, data rate, wire gauge, etc. Call Technical Support for specific distance estimates.

Figure 7 (below) shows how to wire the two-pair cables properly for a Model 2085 star topology. Note that the ground connection is not needed.

HOST

 

FIRST SLAVE

SECOND SLAVE

XMT+

 

RCV+

RCV+

 

XMT-

 

RCV-

 

 

RCV-

 

RCV+

 

XMT+

 

 

XMT+

 

RCV-

 

XMT-

 

 

XMT-

 

 

 

 

 

 

 

Figure 7. Star wiring for Model 2085 host and slaves

 

14

 

Image 8
Contents Model CE Notice ServiceRadio and TV Interference Features DescriptionSetting the DCE/DTE Switch DIP Switch ConfigurationDIP Switch Settings S1 Summary TableS1-4 Echo Mode S1-7 and S1-8 2-Wire/4-Wire ModesConfiguration Switch Applications S1-5 Carrier Control Method2 4-WIRE Connection Using RJ-11 or RJ-45 1 4-WIRE Connection Using the DB-25RJ-11 Signal RJ-45 Signal3 4-WIRE Connection Using Terminal Blocks Model RS-485 Device4 2-WIRE Connection Signal RS-485 SignalWiring for Multipoint Circuits Star TopologyAppendix a Patton Model 2085 Specifications Daisy Chain TopologyHost First Slave Other Slaves Connection to the RS-232 InterfaceAppendix B Patton Model 2085 RS-232 PIN Configurations Direction DCE Setting

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.