Integrated I/O interface for communication terminal
First Claim
1. An integrated input/output interface, connectable with an external analog communication device and with an external digital communication device, for a communication terminal having a digital processor for handling voice and data signals, comprising:
- an input/output interface subsystem installed in the terminal;
first connecting means for connecting the input/output interface subsystem to the digital processor of the terminal;
second connecting means for connecting the input/output interface subsystem to the external analog communication device and to the external digital communication device;
said terminal being provided with means, including said digital processor, for handling voice and data signals in digital form, wherein said terminal digital processor transmits and receives said digital voice and data signals to and from said input/output interface section via said fist connecting means, said digital voice and data signals including a first group of data bits and a second group of control bits;
means in said input/output interface subsystem providing a digital interface mode, including a digital array connected between said first and second connecting means for interfacing digital signals to and from the terminal digital processor with digital signals to and from the external digital communication device; and
means in said input/output interface subsystem providing an analog interface mode, including an analog array connected between said first and second connecting means for interfacing digital signals to and from the terminal digital processor with analog signals to and from the external analog communication device.
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Accused Products
Abstract
An integrated I/O interface for a communication terminal, connectable with an external analog communication device and with an external digital communication device, includes an I/O interface subsystem having analog and digital arrays, a first connector for connecting the I/O interface subsystem to a digital processor for the terminal, and a second connector for connecting the I/O interface subsystem to both the analog communication device and the digital communication device. The digital array and the analog array including a CODEC are mounted on a platform carrier on the I/O interface subsystem board. The second connector is a single connector having pins for transmitting the analog signals, pins for the digital signals, a pin indicating whether the analog or digital mode is selected, and a pin indicating which external communication device is selected. The second connector also has common EMI and EMP protective filter circuits incorporated therein to protect the I/O interface subsystem.
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Citations
15 Claims
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1. An integrated input/output interface, connectable with an external analog communication device and with an external digital communication device, for a communication terminal having a digital processor for handling voice and data signals, comprising:
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an input/output interface subsystem installed in the terminal; first connecting means for connecting the input/output interface subsystem to the digital processor of the terminal; second connecting means for connecting the input/output interface subsystem to the external analog communication device and to the external digital communication device; said terminal being provided with means, including said digital processor, for handling voice and data signals in digital form, wherein said terminal digital processor transmits and receives said digital voice and data signals to and from said input/output interface section via said fist connecting means, said digital voice and data signals including a first group of data bits and a second group of control bits; means in said input/output interface subsystem providing a digital interface mode, including a digital array connected between said first and second connecting means for interfacing digital signals to and from the terminal digital processor with digital signals to and from the external digital communication device; and means in said input/output interface subsystem providing an analog interface mode, including an analog array connected between said first and second connecting means for interfacing digital signals to and from the terminal digital processor with analog signals to and from the external analog communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification