MT8885ANR1

The MT8885ANR1 device is a high performance analog front end module that is usually used in communications and networking applications. The device is used to perform a variety of routing and switching functions, ranging from basic interface modules to high level Voice over IP (VoIP) and Voice over Mobile Data (VMD) applications. The MT8885ANR1 operates in two modes: one is the “always-on” mode, and the other is the “switchless” mode. This allows for the device to be used in both static or dynamic applications.

The MT8885ANR1 is an 8th generation interface device and is part of a family of integrated analog front end (AFE) modules from Mitel. The device integrates a wide range of analog interfaces, such as pulse-code modulation (PCM) encoding/decoding, pulse width modulation (PWM), tone and echo cancellation, call progress detection and line supervision in a single package. It can operate over voice grade, digital subscriber line (DSL) and fiber connections. The device can be configured to support multiple telecommunication systems, including private branch exchange (PBX) networks, Frame Relay networks and Voice over IP (VoIP).

The device features a digital signal processor (DSP), allowing it to perform more complex functions, such as call progress tone generation, echo cancellation, silence suppression, modem access tone detection and line supervision. It also features an integrated coding and decoding (CODEC) subsystem, allowing for voice quality improvement, such as error and noise reduction. The device also includes a programmable pre- amplifier, which allows for amplification and noise reduction. The MT8885ANR1 also includes a low-speed serial peripheral interface (SPI), which can be used to program additional features, such as tone receive thresholds, call progress thresholds and CODEC performance.

The MT8885ANR1 functions as a standalone interface between the PCM and VoIP interface. The device is connected to the PCM network through one or more line interface circuits. This interface operates in the always-on mode, allowing the device to communicate with a variety of endpoints and allowing it to route data and voice calls. The switchless mode allows the device to route data without requiring it to pass through a separate switch.

The device functions as an integrated analog front end (AFE) module, enabling users to easily incorporate analog data into a variety of communications systems. The integrated CODEC subsystem allows for improved voice quality in VoIP applications. The integrated harmonic distortion (HD) and noise rejection circuits also allow for improved performance in high bandwidth applications. Additionally, the MT8885ANR1 features a programmable pre-amplifier, which allows for better noise rejection in low-level signals.

In summary, the MT8885ANR1 is a high performance integrated analog front end module that is used to provide a variety of routing and switching functions for voice and data communications. The device is an optimum solution for VoIP, VMD and frame relay networks, and provides improved performance in high bandwidth applications. The device is also highly configurable, allowing for tone receive thresholds, call progress thresholds, and CODEC performance.