Jumper LK6 & LK7: 75 Ohm Termination Impedance

This jumper sets the termination impedance correctly for 75 Ohm operation. Both jumpers must be in place when operating in 75 Ohm (unbalanced) mode. Conversely, both jumpers must be removed when operating in 120 Ohm (balanced) mode.

LK6

LK7

Setting

On

On

75 ohm operation

Off

Off

120 ohm operation

3.3POWER SUPPLY OPTIONS

The Model 2703 is available with three power supply options:

The Standard power supply option (Model 2703 or 2703-230) is factory configured for either 115 or 230 VAC, depending on how the product is ordered, and is available with a variety of domestic and international power cords (see Appendix C).

The Universal Interface power supply option (Model 2703-UI) operates in environments ranging from 85 to 265 VAC, with no re- configuration necessary (see Appendix C for available domestic and international power cords).

The DC power supply option (Model 2703-DC) operates in 48 VDC environments and is equipped with a 3-pin “terminal strip” style DC power cord.

WARNING! There are no user-serviceable parts in the power supply section of the Model 2703. Voltage setting changes and fuse replacement should only be performed by qualified service personnel. Contact Patton Electronics Technical support at: http://www.patton.com; or, sup- port@patton.com(301)975-1007 for more information.

4.0 INSTALLATION

Once the Model 2703 is properly configured, it is ready to connect to your system. This section tells you how to properly connect the Model 2703 to the G.703 network and terminal device interfaces.

4.1 CONNECTION TO THE G.703 NETWORK

The Model 2703 supports 2.048 Mbps communication over an unstructured G.703 network. Both 120 ohm twisted pair and 75 ohm coax interfaces are provided on the rear panel of the Model 2703 (see Figure 5, below). Be sure the unit is configured properly to operate in either 120 ohm or 75 ohm mode, and that the network connection is grounded appropriately (see Section 3.0).

(Model 2703-DC has terminal strip)

Figure 5. Model 2703 Rear Panel

4.1.1 TWISTED PAIR (120 OHM) CONNECTION

The Model 2703 is equipped with a single RJ-45 jack for connec- tion to a 120 ohm twisted pair G.703 network interface. The pinout of this jack is as follows:

RJ-45 Pins

SIGNAL

1 & 2 . . . . . . . . . . . . Receive pair (from network) 3 . . . . . . . . . . . . . . . Shield reference point

4 & 5 . . . . . . . . . . . . Transmit pair (to network)

6 . . . . . . . . . . . . . . . Shield reference point

7 . . . . . . . . . . . . . . . Not used

8 . . . . . . . . . . . . . . . Not used

4.1.2 DUAL COAX BNC (75 OHM) CONNECTION

In addition to the 120 ohm twisted pair connection, the Model 2703 is equipped with dual female BNCs (TX and RX) for connection to a 75 ohm dual coax G.703 network interface.

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Patton electronic 2703 Power Supply Options, Connection to the G.703 Network, Twisted Pair 120 OHM Connection, Signal
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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.

The design of the Patton Electronic 2703 is both functional and aesthetically pleasing. Its compact form factor makes it easy to incorporate into any audio system without taking up excessive space. Moreover, the device is built to last, featuring high-quality components that ensure longevity and reliability.

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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