Podcast
Questions and Answers
The TIA/EIA serial standards specify the electrical and/or mechanical interface between the ______ and the DTE
The TIA/EIA serial standards specify the electrical and/or mechanical interface between the ______ and the DTE
DCE
The TIA/EIA-232-F standard is for the interface that makes possible the connection between a DTE and a ______ by employing serial binary data interchange
The TIA/EIA-232-F standard is for the interface that makes possible the connection between a DTE and a ______ by employing serial binary data interchange
DCE
The two communicating devices might be physically local to each other or might be far enough apart that some form of intervening ______ equipment is needed to enable the communications
The two communicating devices might be physically local to each other or might be far enough apart that some form of intervening ______ equipment is needed to enable the communications
telecommunications
In general, the TIA/EIA serial standards only deal with the digital signals between DTEs, DCEs, and other ______
In general, the TIA/EIA serial standards only deal with the digital signals between DTEs, DCEs, and other ______
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Understanding how data communication equipment and data terminal equipment are defined is essential to any discussion of data ______
Understanding how data communication equipment and data terminal equipment are defined is essential to any discussion of data ______
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The internal voltage-based representation of binary bits within a digital device may be unsuitable for interfacing with the communications channel medium or ______ equipment
The internal voltage-based representation of binary bits within a digital device may be unsuitable for interfacing with the communications channel medium or ______ equipment
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The standard was originally intended to describe the interface between a modem and a ______ —nothing more
The standard was originally intended to describe the interface between a modem and a ______ —nothing more
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The TIA/EIA serial standards focus on three Electronic Industries Alliance /Telecommunications Industry Association serial communications standards: numbers 232, 422, and ______
The TIA/EIA serial standards focus on three Electronic Industries Alliance /Telecommunications Industry Association serial communications standards: numbers 232, 422, and ______
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Serial interface to the PC is being accomplished by newer and much faster technologies, so we will also focus on four PC-based standards that will impact industrial use and automation applications: USB 2.0, FireWire , ______, and PCIe
Serial interface to the PC is being accomplished by newer and much faster technologies, so we will also focus on four PC-based standards that will impact industrial use and automation applications: USB 2.0, FireWire , ______, and PCIe
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When the communicating devices were physically widely separated, there was a need to use existing telecommunications infrastructure and/or technology to create a communications channel when the communicating devices were physically widely ______
When the communicating devices were physically widely separated, there was a need to use existing telecommunications infrastructure and/or technology to create a communications channel when the communicating devices were physically widely ______
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The TIA/EIA-232-F standard specifies the interface between a DTE and a ______ by employing serial binary data interchange
The TIA/EIA-232-F standard specifies the interface between a DTE and a ______ by employing serial binary data interchange
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Up through RS-232-C, the standard specified only that there be a 25-pin connector and only described the 25 pins and their ______
Up through RS-232-C, the standard specified only that there be a 25-pin connector and only described the 25 pins and their ______
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IEEE 1394c-2006 uses the S1600 and S3200 modes that compete with USB 3.0. This classification of products uses the ______ and ______ modes.
IEEE 1394c-2006 uses the S1600 and S3200 modes that compete with USB 3.0. This classification of products uses the ______ and ______ modes.
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IEEE 1394d – Proposed project aimed to add single mode fiber as an additional transport medium to FireWire. IEEE 1394 supports ______ data, which means it delivers data at a guaranteed rate.
IEEE 1394d – Proposed project aimed to add single mode fiber as an additional transport medium to FireWire. IEEE 1394 supports ______ data, which means it delivers data at a guaranteed rate.
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The IEEE 1394 protocol uses an 8B/10B signaling scheme, where 8-bit combinations are represented by ______ patterns.
The IEEE 1394 protocol uses an 8B/10B signaling scheme, where 8-bit combinations are represented by ______ patterns.
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SCSI has moved from a parallel configuration to a ______ connection.
SCSI has moved from a parallel configuration to a ______ connection.
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SCSI’s primary use is as a multiple disk interface, particularly in fault-tolerant arrays, such as Redundant Array of Independent Disks in configurations as ______ or ______.
SCSI’s primary use is as a multiple disk interface, particularly in fault-tolerant arrays, such as Redundant Array of Independent Disks in configurations as ______ or ______.
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SATA currently has data rates from 0.5 Gbps and 16.0 Gbps, however, these data rates have a maximum length of 1 m; therefore, SATA should not be considered for long external ______ connections.
SATA currently has data rates from 0.5 Gbps and 16.0 Gbps, however, these data rates have a maximum length of 1 m; therefore, SATA should not be considered for long external ______ connections.
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This chapter has shown how a standard, RS-232, now TIA/EIA-232-F and originally rather limited in scope, has kept pace with ______.
This chapter has shown how a standard, RS-232, now TIA/EIA-232-F and originally rather limited in scope, has kept pace with ______.
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EIA-530 is a mechanical standard for a balanced-to-ground signal system that uses a connector identical to RS-232, except in ______.
EIA-530 is a mechanical standard for a balanced-to-ground signal system that uses a connector identical to RS-232, except in ______.
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Today it is not unusual to see two computers, or a computer and an intelligent device, communicating over a EIA-232 circuit at bit rates of ______ bps
Today it is not unusual to see two computers, or a computer and an intelligent device, communicating over a EIA-232 circuit at bit rates of ______ bps
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EIA-449 used the EIA-422 and EIA-423 standards for media and electrical descriptions. EIA-449 was originally intended to phase out RS-232 but EIA-449 itself has been replaced by EIA-530 for circuits above ______ Kbps
EIA-449 used the EIA-422 and EIA-423 standards for media and electrical descriptions. EIA-449 was originally intended to phase out RS-232 but EIA-449 itself has been replaced by EIA-530 for circuits above ______ Kbps
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The standard calls for a +200 mV to + 6 V signal, with the most positive condition being the logic 0 state. Noise is normally found in the common mode, but the balanced line uses differential inputs and outputs, which by nature have a high common mode rejection ratio, so noise is reduced as a factor in signal quality. A differential transmitter puts the transmitted signal on one line and a polarity-inverted copy of the transmitted signal on the other ______
The standard calls for a +200 mV to + 6 V signal, with the most positive condition being the logic 0 state. Noise is normally found in the common mode, but the balanced line uses differential inputs and outputs, which by nature have a high common mode rejection ratio, so noise is reduced as a factor in signal quality. A differential transmitter puts the transmitted signal on one line and a polarity-inverted copy of the transmitted signal on the other ______
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The most common interface between a computer and, for example, a telephone modem is an EIA-232 connection with all of the hardware handshaking signals ______
The most common interface between a computer and, for example, a telephone modem is an EIA-232 connection with all of the hardware handshaking signals ______
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In most PCs, the serial COM ports are connected to a special integrated circuit, called a UART, that can send and receive 8-bit data values via an EIA-232 circuit. These UART chips interface to the various data and handshaking signals of the EIA-232 circuit and allow software to examine and set/clear the applicable ______
In most PCs, the serial COM ports are connected to a special integrated circuit, called a UART, that can send and receive 8-bit data values via an EIA-232 circuit. These UART chips interface to the various data and handshaking signals of the EIA-232 circuit and allow software to examine and set/clear the applicable ______
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If a device uses a UART for serial communications, then it is performing asynchronous serial communications in which there can be gaps between data being sent. The data is sent as one or more octets, with a special start bit and stop bit appended to each octet at the sending end by the transmitting UART. The HDLC protocol is a commonly used synchronous protocol, in which there is a unique 8-bit pattern called a flag character used to identify the start and end of a message. Specialized transmitting and receiving hardware is needed for synchronous communications because the UART chip in a typical PC cannot support synchronous transmission. Synchronous data transmission is commonly found today in all high-speed local area networking technologies ______
If a device uses a UART for serial communications, then it is performing asynchronous serial communications in which there can be gaps between data being sent. The data is sent as one or more octets, with a special start bit and stop bit appended to each octet at the sending end by the transmitting UART. The HDLC protocol is a commonly used synchronous protocol, in which there is a unique 8-bit pattern called a flag character used to identify the start and end of a message. Specialized transmitting and receiving hardware is needed for synchronous communications because the UART chip in a typical PC cannot support synchronous transmission. Synchronous data transmission is commonly found today in all high-speed local area networking technologies ______
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Just as EIA-232 use was greatly expanded by the personal computer, other buses, internal and external to the computer, have also appeared. For a long time, external line speeds required only the EIA232, then the EIA-422/485 connections or perhaps the SCSI extended bus. However, much higher speeds and the constraints media imposed on these signals required a rethinking of the serial signal organization and the software that drives it ______
Just as EIA-232 use was greatly expanded by the personal computer, other buses, internal and external to the computer, have also appeared. For a long time, external line speeds required only the EIA232, then the EIA-422/485 connections or perhaps the SCSI extended bus. However, much higher speeds and the constraints media imposed on these signals required a rethinking of the serial signal organization and the software that drives it ______
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The Universal Serial Bus was originally developed in 1995 by industry-leading companies. The concept was to define an external expansion bus that made adding peripherals to a PC as simple as plugging in a network jack. The design goals were low cost and true “plug-and-play” operation. Figure 3-14 illustrates a laptop computer with a root hub showing connections to a USB hub, a printer, a mouse, a wireless access point, and a ready-to-connect flash drive. It is backward-compatible with the 1.x and 2.0 version devices that run at either 480 Mbps, 12 Mbps, or 1.5 Mbps. USB version 3 operates at a higher speed and is the newest release. There are PCI Express cards available to add USB 3.0 hardware to PCs ______
The Universal Serial Bus was originally developed in 1995 by industry-leading companies. The concept was to define an external expansion bus that made adding peripherals to a PC as simple as plugging in a network jack. The design goals were low cost and true “plug-and-play” operation. Figure 3-14 illustrates a laptop computer with a root hub showing connections to a USB hub, a printer, a mouse, a wireless access point, and a ready-to-connect flash drive. It is backward-compatible with the 1.x and 2.0 version devices that run at either 480 Mbps, 12 Mbps, or 1.5 Mbps. USB version 3 operates at a higher speed and is the newest release. There are PCI Express cards available to add USB 3.0 hardware to PCs ______
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The USB attachment cable may have either a Type-A or a Type-B connector. A Type-A port is usually found on the PC, and Type-B ports are generally on the ______
The USB attachment cable may have either a Type-A or a Type-B connector. A Type-A port is usually found on the PC, and Type-B ports are generally on the ______
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IEEE 1394 is a fast external bus standard that supports data transfer rates of up to 400 Mbps and 800 Mbps. The standard allows for rates of 1.6 and 3. ______
IEEE 1394 is a fast external bus standard that supports data transfer rates of up to 400 Mbps and 800 Mbps. The standard allows for rates of 1.6 and 3. ______
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