Patton electronic user manual Loopback Test LAL, Patton Model 2703 Specifications

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5.3 LOOPBACK TEST (LAL)

The Model 2703 is equipped with a Local Analog Loopback (LAL) mode to assist in evaluating the operation of the local Model 2703. Any data sent to the local Model 2703 in this test mode will be echoed (returned) back to the user device. For example, characters typed on the keyboard of a terminal will appear on the terminal screen. To per- form a LAL test, follow these steps:

A.Activate LAL by moving the front panel toggle switch UP and holding it in the “Loopback” mode. The “Loop” LED should glow. Once LAL is activated, the Model 2703 transmit output is connected to its own receiver.

NOTE: The front panel switch is spring loaded, so it will return to “Normal” operating mode when pressure is released. To put the Model 2703 in continual loopback mode, for the purpose of performing a BER test, move DIP switch S1-8 to the “ON” position (see Section 3.1).

B.Verify that the data terminal equipment is operating properly and can be used for a test. If a fault is indicated, call a tech- nician 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 indi- cates a fault, follow the manufacturer’s checkout procedures for the data terminal. Also, check the interface cable between the terminal and the Model 2703.

APPENDIX A

PATTON MODEL 2703 SPECIFICATIONS

Network Interface:

G.703

Network Rate:

2.048 Mbps

Network Connectors:

Two BNC (75 Ohm) and one

 

modular RJ-45 connector (120

 

Ohm)

Terminal Interface:

EIA RS-530 (V.36/RS-422), X.21,

 

V.35 on UD-26

Terminal Rate:

2.048 Mbps;

 

1.024 Mbps, 512 kbps, 256 kbps

Diagnostics:

Loopback Test

Indicators:

LEDs for power, network, master

 

clock and loopback test

Clocking:

Internal or network (receive

 

loop)

Receiver Sensitivity:

-10 dB (0dB = 2.4V)

Power:

115/230 VAC (switch selectable),

 

50/60 Hz; 85-265 VAC, 50/60 Hz

 

(universal input option); 48 VDC

Temperature Range:

(option)

0-60°C (32-140°F)

Altitude:

0-15,000 feet

Humidity:

5 to 95% non-condensing

Dimensions:

7.3” x 6.6” x 1.62” (185mm x

Weight:

168mm x 41mm)

2.02 lbs.

15

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Contents User Manual Radio and TV Interference ServiceCE Notice Tel 301Features External DIP Switch SettingsDescription Switches S1-4 and S1-5 Rate Adaptation Switch Set S1Switch S1-6 Data Inversion Switch S1-7 Master/Slave ClockSwitch Set S2 To be Used in Conjunction with S1-1 Switch S1-8 Loopback Test EnableInternal Jumper Settings S2 Summary TableJumper Summary Table Signal Power Supply OptionsConnection to the G.703 Network Twisted Pair 120 OHM ConnectionPOWER-UP Connection to the Power SourceLED Status Indicators Connection to the Terminal DeviceLoopback Test LAL Patton Model 2703 SpecificationsFactory Parts and Accessories Patton Model 2703 PIN ConfigurationsSafety Warnings and Requirements Terminal DTE Interface CablesPatton Part Number

2703 specifications

The Patton Electronic 2703 is a versatile digital to analog converter (DAC) that is designed to enhance audio experiences for both enthusiasts and professionals. This device is renowned for its high performance, delivering an impressive sound quality that meets the demands of various applications, from home audio systems to studio environments.

One of the main features of the Patton Electronic 2703 is its advanced audio processing technology. It utilizes high-resolution audio sampling, supporting formats up to 24-bit/192kHz, which significantly improves the clarity and richness of sound reproduction. This capability allows users to enjoy music with detailed nuances, providing an immersive listening experience.

Another key characteristic of the 2703 is its robust connectivity options. The unit is equipped with multiple input and output options, including USB, optical, and coaxial connections. This flexibility allows it to integrate seamlessly with a wide range of audio sources and devices, making it an ideal choice for users who require versatility in their audio setups.

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In addition to its impressive technical specifications, the 2703 offers user-friendly controls. The front panel includes intuitive buttons for volume adjustment, as well as indicator lights that provide information on the current input signal and operational status. This design consideration ensures that users can easily navigate the device’s features without confusion.

Another significant advantage of the Patton Electronic 2703 is its ability to reduce distortion and enhance signal integrity. This is accomplished through its high-quality digital filters and advanced clock synchronization technology, which minimizes jitter and maintains a clean audio signal.

In conclusion, the Patton Electronic 2703 stands out as a premier choice for anyone seeking a reliable and high-performance digital to analog converter. Its combination of superior sound quality, versatile connectivity, durable construction, and user-friendly design makes it an essential tool for audio professionals and audiophiles alike. Whether you are enhancing your home audio setup or working in a professional studio, the 2703 is engineered to deliver an exceptional audio experience that meets and exceeds expectations.
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