Chapter 4 – Leased Line Operation

Four-Wire Setup

1.For four-wire leased line operation, connect one end of the four-wire cable to the LEASED jack on the back of the modem. Connect the other end of the cable to a four-wire leased line jack or terminals.

2.Turn on the modem.

3.Starting at the STATUS LCD, press the following buttons on the front panel: È, Æ, È, È, È, Æ, Æ, Æ, Æ. The SYNC, NORM? LCD appears.

4.Press the Enter button to select normal synchronous operation.

5.The OPTION SET LCD appears. Press ÇÅ to exit to the SYNC/ASYNC OPTIONS LCD.

6.Press ÇÅ, ÇÅ, ÇÅ, Æ, Æ, Æ, Æ, Æ, Æ. The 4 WIRE LEASE? ORIG LCD appears.

7.Choose one of two actions:

•To set up the modem as the originate modem, press the Enter button.

•To set up the modem as the answer modem, press Æ to display the 4 WIRE LEASE? ANSWER LCD, and then press the Enter button.

Note: One of the modems in a leased line pair must be configured as the originate modem, and the other as the answer modem, but it does not matter which is which.

8.The OPTION SET LCD appears. Press ÇÅ to exit to the ONLINE OPTIONS LCD, or Æ to exit to the CURRENT SETTING= LCD.

9.This completes the setup for four-wire leased line operation. Upon completion, the modem attempts to connect to the modem at the other end of the leased line. If the remote modem has not yet been configured for leased line operation, you may turn off the local modem until the remote one is ready.

Dial Backup

For leased line operation, the MT5600BA-V92 modem has a dial backup capability in which the modem is connected to a standard dial-up line as well as to the leased line. If the leased line fails, the originate modem automatically dials and connects to the answer modem through the standard telephone network. While it is in dial backup mode, the modem periodically checks the leased line to see if it is operational. If the line is operational, the modem then attempts to restore the leased line. If the modem detects that it is not connected to the standard telephone network when the leased line fails, it immediately switches to leased line restore.

The dial-back timer, register S17, determines how long the modem waits after a leased line failure before it attempts a dial backup connection. The S17 default setting is one minute. During that minute, the originate modem tries to establish the leased line link. If the leased line is established during that time, the S17 timer is cleared and everything is back to normal. If the timer expires, the modem attempts a dial backup connection. The purpose of the timer for the answer modem is to determine when it can accept a dial-up call. Dial-back starts only when both timers have expired and the leased line is still down.

The restore timer, register S15, determines how frequently restore attempts occur when the modems are in dial backup mode. S15 can be set from 10 to 255 minutes in one minute increments. A value of 0 disables dial backup. The default value is 30 minutes.

Notes:

•Register S15 must be set identically on the local and remote modems.

•The dial backup number must be set from the front panel of the modem.

Multi-Tech Systems, Inc. MT5600BA-V92 User Guide

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Multi-Tech Systems PN S000408C manual Four-Wire Setup, Dial Backup
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PN S000408C specifications

The Multi-Tech Systems PN S000408C is a versatile and compact communication device designed for a wide range of applications in various industries. This device is primarily known for its robust performance, making it an ideal choice for developing Internet of Things (IoT) solutions, machine-to-machine (M2M) communications, and other telemetry applications.

One of the main features of the S000408C is its ability to support multiple communication protocols, which enhances its flexibility and interoperability with different systems. This device can seamlessly integrate with cellular, Ethernet, and serial interfaces, providing users the capability to implement diverse connectivity solutions. Its versatility enables it to function effectively in remote monitoring, data logging, and industrial automation scenarios.

The S000408C is engineered to work with multiple wireless technologies, including LTE, GSM, and CDMA, ensuring reliable connectivity across various geographical locations. This feature is essential for applications where consistent communication is necessary, such as in asset tracking and fleet management. Additionally, the device is compatible with various network configurations, making it suitable for both urban and remote deployments.

In terms of characteristics, the device stands out with its compact design, which allows for easy installation even in space-constrained environments. It features a rugged enclosure that is built to withstand harsh conditions, making it ideal for outdoor use. The S000408C is also equipped with power management capabilities, allowing for energy-efficient operation, which is crucial for battery-powered applications.

Moreover, the Multi-Tech S000408C prioritizes security, as it comes with built-in encryption features to protect data integrity during transmission. This aspect is particularly important for industries dealing with sensitive information, such as healthcare and finance.

The configuration process of the S000408C is straightforward, supported by comprehensive documentation and user-friendly software tools. This makes it accessible to developers and engineers, enabling them to rapidly deploy solutions without extensive training.

In conclusion, the Multi-Tech Systems PN S000408C is a powerful tool for businesses and developers aiming to harness the power of connectivity in their operations. With its multi-protocol support, robustness, and security features, it is well-positioned to meet the demands of today's connected world. As industries continue to evolve with the integration of IoT technologies, devices like the S000408C will remain at the forefront of enabling communication and operational efficiency.
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