Diagnostics, Local Analog Loopback | Patton electronic 1185, 1184

5.3 DIAGNOSTICS

Model 1184 and 1185 are equipped with V.54 diagnostics that may be used to to evaluate the condition of the local and remote units, as well as the twisted pair link between them: local loopback (LAL) and remote digital loopback (DL).

5.3.1 Local Analog Loopback

The Local Analog Loopback (LAL) test checks the operation of the local Model 1184 or 1185 and is performed separately on each unit. Any data sent to the local Model 1184/1185 in this test mode will be echoed (returned) back to the user device. (See Figure 7, below). For example, characters typed on the keyboard of a terminal will appear on the terminal screen.

Local Model 1184/1185

Figure 7. Local Analog Loopback

To perform a Local Analog Loopback test, follow these steps.

1.Activate LAL either by moving the front panel toggle switch DOWN to “Local”, or; by raising the appropriate signal on the DTE interface. Once Local Analog Loopback is activated, the Model 1184/1185’s transmit output is connected to its own receiver. The test LED should glow.

NOTE: Although the local Model 1184/1185 cannot communicate with the remote Model 1185/1185 in this mode, the synchronized connection between the two modems remains intact.

2.Verify that the data terminal equipment is operating properly and can be used for a test. If a fault is indicated, call a technician or replace the unit.

3.Perform a BER (bit error rate) test on each unit using a separate BER tester. If the BER test equipment indicates no faults but the data terminal indicates a fault, follow the manufacturer's checkout procedures for the data terminal. Also, check the interface cable between the terminal and the Model 1184/1185.

5.3.2 Remote Digital Loopback

The Remote Digital Loopback test checks the performance of both the local and remote Model 1184/1185, and the communication link between them. Any characters sent to the remote unit in this test mode will be returned back to the originating device (see Figure 7).

Figure 7. Remote Digital Loop

To perform an DL test, follow these steps:

1.Activate DL. This may be done in one of two ways: First, by moving the front panel toggle switch DOWN to “Remote”. Or, second, by raising the DL signal on the terminal interface (for pin numbers, see Appendix D).

2.Perform a BER (bit error rate) test on the system, using BER testers on both ends.

3.If the BER test equipment indicates a fault and the Local Analog Loopback test was successful for both Model 1184 or 1185s, you may have a problem with the line between the units. You should inspect the line for proper connections.

15	16

1184, 1185 specifications

The Patton Electronics 1185 and 1184 models are part of a trusted series of network devices designed to facilitate communication and enhance network performance in various applications. These products are widely recognized for their robust features, user-friendly interface, and reliable performance.

The Patton 1185 is primarily a multi-port serial device server that enables the connection of multiple serial devices to an Ethernet network. This model can support up to eight serial ports, offering a straightforward solution for integrating legacy serial devices like POS terminals, industrial equipment, and IoT devices into modern network infrastructures. The 1185 is equipped with standard RS-232, RS-422, or RS-485 interfaces, allowing flexibility in terms of device compatibility. Its ability to convert serial data to TCP/IP makes it ideal for remote monitoring and management applications.

On the other hand, the Patton 1184 serves as a single-port serial device server. Like its counterpart, it provides the functionality to connect serial devices to Ethernet networks. The 1184’s compact design and ease of installation make it suitable for small-scale installations where space is a premium. It supports a variety of serial interfaces, including RS-232, enhancing compatibility with various devices.

Both models feature patented Auto-Sense technology, which automatically adjusts serial port settings to match connected devices, easing the configuration process and reducing setup time. They are equipped with a web-based management interface that allows for simplified configuration, monitoring, and troubleshooting through any web browser.

In terms of reliability, the Patton 1185 and 1184 boast a wide operating temperature range, making them suitable for use in harsh environmental conditions. They also feature surge protection and failover capabilities to ensure consistent data transmission and minimal downtime. Moreover, both models incorporate support for standard networking protocols, including TCP/IP, UDP, and DHCP, facilitating seamless integration into existing networks.

With a commitment to quality and performance, Patton Electronics has designed these models to meet the demands of various sectors, including retail, telecommunications, and industrial automation. The Patton 1185 and 1184 represent innovative solutions that combine functionality, ease of use, and robust construction, making them a preferred choice for businesses looking to modernize their communications infrastructure.