Overview

• The Lab-Volt Telephony Training System (TTS), Model 8086, is a powerful learning tool that provides training on modern telephone networks and digital private automatic branch exchanges (PABX).

  It is also an essential tool to introduce students to the Integrated Services Digital Network (ISDN). The TTS is built upon state-of-the-art, programmable equipment that operates real world devices, including telephone sets and trunk lines.

  The TTS courseware covers the following fields of telephony: analog access to the telephone network, central office operation, digital PABX, PABX analog trunk, and digital trunk.

  Furthermore, while performing the courseware material for the digital PABX or the digital trunk, students are introduced to the following two major aspects of ISDN: the physical layer (layer 1) and the network layer (layer 3).

Topic Coverage

• Volume 1: Analog Access to the Telephone Network
• Volume 2: Central Office Operation
• Volume 3: Private Automatic Branch Exchange
• Volume 4: PABX Analog Trunk
• Volume 5: Digital Trunk

Equipment Features

• The Reconfigurable Training Module can be configured as a digital CO of the public switched telephone network (PSTN) or a digital PABX.
• A DSP executes downloaded programs and reads or produces external signals that are used to operate real-world devices (telephone sets, phone lines, etc.)
• Flexibility of software simulation plus realism of hardware operation.
• Real-time, real-signal operation.
• Provides real-life operation that is much more motivating that simple simulation.
• Flexibility is enhanced by eliminating front panel controls and diagrams. These are all moved to a personal computer's screen.
• System can be configured for different international standards (e.g. telephone ringing cadence can be adjusted to each country's requirements).
• "Reconfigurability" prevents obsolescence of the system. As new standards and systems emerge, they need only be programmed and then downloaded into the training module.
• Simple interface cards designed to be installed into the training module allow connection of real analog and digital telephone sets and trunk lines.
• Test points are available on the front panel of each interface card.
• Analog telephone sets come with speakerphone, LCD display, tone/pulse switch, caller identification function, ringer on/off switch, multiple phone number memory, and one-touch call buttons.
• Digital telephone sets come with basic ISDN functions, programmable call appearance/function buttons, tiltable LCD display, and semi-duplex speakerphone.
• When configured as a digital PABX or when a digital trunk is set up, the system allows study of the physical and network layers (layers 1 and 3 respectively) of ISDN.