Patton electronic 3054, 3058 Features, Description, MODEL 305X/A TO MODEL 358 COMPATIBILITY STRAP

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 arise during installation or use of the unit, contact Patton Electronics Technical Support at (301) 975-1007.

2.1 FEATURES

•Multiplexes four, six or eight async RS-232 or RS-422 devices onto two twisted pair, at distances to 6000 ft between muxes

•Operates over 2 dedicated twisted pair wires

•Sub-channels operate full duplex at rates up to 19,200 bps

•Passes through end to end software flow control characters

•Model 3054/AR and 3056/AR allow end-to-end

RTS/CTS flow control

•Independent and variable data rates, start/stop bits, and other data parameters for all sub-channels

•Built-in loopback and line tests allow convenient troubleshooting

•Front Panel LEDs show data activity and test status

2.2 DESCRIPTION

The Patton Model 305X Series Short Range Multiplexer is two devices in one: a time division multiplexer and a short range modem. Operating full duplex over a two dedicated twisted pair wires, the Model 305X Series allows up to four, six, or eight serial RS-232 or RS-422 devices to share two twisted pair to communicate at distances up to 6000 feet.

Each of the Model 305X sub-channels can transmit data simultaneously at data rates up to 19.2 kbps without the need for user configuration. Additionally, each sub-channel can operate at a different rate and with different asynchronous data format (word length, start/stop bits, etc.)

The Model 305X Series features built-in local and remote

loopback tests that allow easy setup and configuration. Front panel LEDs show data activity for each port as well as power and test conditions. The 305X Series allow software flow control by passing software commands unhindered through the units. In addition, Models 3054AR and 3056AR offer end-to-end RTS/CTS flow control.

3.0 CONFIGURATION

Models 3054 and 3056 require no configuration. If you have Models 3054 or 3056, proceed to Section 4.0 Installation. For most applications, the Model 3058 also requires no configuration. However, if you need to connect a Model 3058 to a Patton Model 358 on the main (multiplexed) channel, you must modify an internal jumper strap setting to make the two units compatible with each other. This section shows how to set the jumper strap.

3.1 MODEL 305X/A TO MODEL 358 COMPATIBILITY STRAP

Models 3054/A, 3056/A and 3058/A can be configured to be backward-compatible with the previous generation 8-channel multiplexer--Patton Electronics Model 358. To make the 305X backward-compatible on the main channel, you must remove the Model 358 Compatibility Jumper switch located on the top of the PC board (see Figure 1, below).

Model 358 Compatibility

Jumper

Figure 1: Model 358 Compatibility Jumper

Figure 2, below, shows the two possible settings of the Model 358 Compatibility jumper. The jumper settings are described in the table following Figure 2.

Normal Mode (default)		Model 358 Compatibility
Figure 2: Model 358 Compatibility Jumper
Jumper Position	Compatibility Mode
Jumper strap in place	Normal (default setting)
Jumper strap removed	Backwards Compatible with Model 358

3 4