Data Synchronization

Data exchanged between the synchronous DTE and the modem is synchronized by two clock signals. Data coming from the DTE is synchronized by the transmit clock and data received by the DTE is synchronized by the receive clock. The transmit clock is provided by the modem on circuit 114 or by the synchronous DTE on circuit 113. The receive clock is provided by the modem on circuit 115.

When the transmit clock is provided by the modem, the transmit and receive clocks are locked on the same clock source internal to the modem. In this configuration, the user can select rates on the DTE-DCE line (or clock frequencies) in the range from 1.2 kHz to 128 kHz.

When the transmit clock is provided by the DTE, the receive clock is set by the modem equal to the DTE clock (Figure 4). When SDC is in use, the Tx Clock Source configuration option cannot be set to Receiver Clock Loop.

NOTE

When faster speeds are used (above 57.6 kHz), and the transmit clock is provided by the modem, data transmission can be sensitive to DTE cable length and capacitance, as well as the DTE's drivers and receivers. Should you encounter bit errors related to the above conditions, you may want to change the Tx Clock Source configuration option setting to External (provided the DTE can support the required transmit clock signal) or change the length of the DTE cable.

XTCLK (113)	DCE
XTCLK (113)
	TXC (114)
DTE
	RXC (115)
	CLOCK
	SOURCE
	495-14782

Figure 4. Clocks at the DTE±DCE Interface

3980-A2-GZ40-20

November 1996

3980-A2-GZ40-20 specifications

The Paradyne 3980-A2-GZ40-20 is a cutting-edge communication device renowned for its robust features and advanced technology. Designed primarily for high-performance networking applications, this versatile modem is a cornerstone in the field of data transmission. Its key strengths lie in its reliability, speed, and adaptability, making it suitable for a wide range of environments, from industrial settings to telecommunications.

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The device employs advanced modulation techniques, which enhance its performance in terms of both speed and error correction. With a maximum throughput that meets the demands of today’s data-heavy applications, the Paradyne 3980-A2-GZ40-20 supports data rates that ensure prompt delivery and reduced latency.

In terms of design, the Paradyne 3980-A2-GZ40-20 boasts a compact form factor, making it easy to integrate into existing systems without requiring significant space. Its rugged construction is tailored for durability in challenging conditions, ensuring consistent performance even in harsh environments. This reliability is crucial for mission-critical applications where downtime can have significant implications.

The device is also equipped with an intuitive management interface that simplifies configuration and monitoring. Users can access real-time diagnostics, which aids in troubleshooting and maintenance, enhancing overall operational efficiency. Additionally, compatibility with various network management protocols paves the way for seamless integration into broader network architectures.

Security is another paramount feature of the Paradyne 3980-A2-GZ40-20. It incorporates robust encryption and authentication protocols that protect data integrity during transmission. This focus on security is vital as businesses increasingly recognize the importance of safeguarding sensitive information.

In summary, the Paradyne 3980-A2-GZ40-20 is a powerful and versatile communication device that excels in performance, flexibility, and security. Its advanced technologies and durable design make it a top choice for organizations looking to enhance their networking capabilities and ensure reliable communication. Whether in telecommunications, industrial applications, or other sectors, the Paradyne 3980-A2-GZ40-20 stands out as a dependable solution for modern data transmission needs.

Paradyne 3980-A2-GZ40-20 manual Data Synchronization, Clocks at the DTE±DCE Interface

Models: 3980-A2-GZ40-20