B&B Electronics 1140 manual Remote Digital Loopback RDL

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A. Activate LAL. This may be done in one of two ways: First, by moving the front panel toggle switch DOWN to "LAL". Second, by raising pin 18 on the interface. (NOTE: Make sure DIP switch SW1-8 is OFF). Once LAL is activated, the Model 1140 transmit output is connected to its own receiver. The "test" LED should be lit.

B. 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.

C. Perform a BER (bit error rate) test on each unit. 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 1140.

5.2.2 REMOTE DIGITAL LOOPBACK (RDL)

The Remote Digital Loopback (RDL) test checks the performance of both the local and remote Model 1140s, and the communication link between them. Any characters sent to the remote Model 1140 in this test mode will be returned back to the originating device. For example, characters typed on the keyboard of the local terminal will appear on the local terminal screen after having been passed to the remote Model 1140 and looped back. To perform an RDL test, follow these steps:

A. Activate RDL. This may be done in two ways: first, by moving the front panel toggle switch UP to "RDL". Second, by raising pin 21 on the interface. (NOTE: Make sure SW1-8 is OFF).

B. Perform a BER (bit error rate) test on the system.

C. If the BER test equipment indicates a fault, and the Local Analog Loopback test was successful for both Model 1140s, you may have a problem with the twisted pair line between the modems. You should then check the fiber line for proper connections and continuity.

Documentation Number 11401198 Manual

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B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5105

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Contents Miniature Fiber Optic Modem With V.54 Diagnostics Table of Contents Radio and TV Interference Service Description FeaturesModel 1140 Configuration Switches External Position Configuration SwitchesClose-up of DIP switches showing on and OFF positions Configuration Switch SET S1S1-1 through S1-4 Data Rate Setting S1-8 Carrier Control Method Configuration Switch SET S2S2-3 Extended Signaling Rate RS-232 Connection Fiber ConnectionsLocal Analog Loop Back LAL Test ModesRemote Digital Loopback RDL Power UP Using the V.52 BER Test IndependentlyAppendix a Specifications Appendix B PIN Configurations

1140 specifications

B&B Electronics 1140 is a versatile and reliable serial device server designed to enhance communication between serial devices and Ethernet networks. Its robust feature set and advanced technologies make it an ideal solution for various applications, including industrial automation, instrumentation, and remote monitoring.

One of the key features of the B&B Electronics 1140 is its ability to connect multiple serial devices to a local area network (LAN) or wide area network (WAN) via Ethernet. The device supports up to four serial ports, allowing seamless connectivity of various devices such as sensors, barcode scanners, and other serial peripherals. Each serial port can be configured individually, enabling the system to cater to diverse communication needs.

The 1140 utilizes a standard TCP/IP network protocol, ensuring compatibility with numerous networking devices and systems. This enables easy integration into existing infrastructures without the need for extensive modifications. Additionally, the B&B Electronics 1140 supports both TCP server and client modes, providing flexibility in how data is transmitted across the network.

Another significant characteristic of the 1140 is its robust security features. It supports SSL encryption, ensuring that data transmitted over the network remains secure from potential cyber threats. This makes it particularly suitable for applications where sensitive information is being handled. The device is also equipped with various authentication options, allowing for stringent access control to safeguard the system against unauthorized access.

The B&B Electronics 1140 supports a wide range of serial communication protocols, including RS-232, RS-422, and RS-485, making it compatible with numerous devices. It is designed to handle different baud rates, accommodating a variety of devices and ensuring effective communication. Additionally, the device features built-in diagnostics, providing users with valuable insights into the system's performance and connectivity status.

Installation is straightforward, with a user-friendly web interface and detailed documentation provided. Configuration can also be performed via standard terminal emulation software, making it accessible even for users with minimal technical experience.

In summary, the B&B Electronics 1140 is an essential tool for facilitating communication between serial devices and Ethernet networks. Its multi-port capability, robust security features, extensive protocol support, and user-friendly setup make it an excellent choice for industries looking to improve their connectivity and data management. This device is built to meet the demands of modern applications, ensuring reliable performance and longevity in various environments.
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