December 20, 2004

Chapter 2: Installation

Power and Frame Ground Procedure

IMPORTANT To avoid voltage differences from building up between the shelf ground (GND) bus and the

!ground pins of the management terminal that connects to the RS-232 ports, connect the shelf ground pins and the terminal ground bus to the TB1 FGND (frame ground) pin.

Step

Action

1Use locally approved practices to connect #12 AWG (minimum) power wiring from -48Vdc Office Battery to -48VA and -48VB terminals on TB1-1 and TB1-2 (see <Cross-Ref>Figure 2).

2Connect #12 AWG (minimum) power wiring from the Battery Returns to BAT RTN terminals on TB1-3 and TB1-4 (see <Cross-Ref>Figure 2).

Note: Slots 1 through 11 on the HMS-318 List 3 shelf are powered by the -48VA bus. Slots 12 through 22 are powered by the -48VB bus.

In the HMU/HLU configuration, the HMU-319 is diode-OR’ed to both power busses to guard against power failure in the event that one power supply is lost. This feature requires the two ground (GND) terminals to be connected on the HMU card.

1

2

3

4

5

3/16-1261R1

-48VA -48VB

FUSE FUSE

15A MAX 15A MAX

TB1

BAT RTN

FGND

Figure 2-2. Input Power Terminal Block (TB1)

Alarms Procedure

Note: As described in “Power and Alarm Connections” on page 7, the HMS-318 List 3 shelf provides alarm outputs in the form of an Alarms wire-wrap field. This field consists of a three-pin wire-wrap header for alarm management. Before connecting the alarm inputs, you must first determine whether the external alarm equipment requires either an NO or an NC circuit to pass an alarm.

Step

Action

1Use locally approved practices to connect the alarm inputs to the Alarms wire-wrap field (see Figure 2-3 on page 2-12).

Note: The HMU-319 is required for NO and NC alarm operation.

LTPH-UM-1261-01

2-11

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ADC HMS-318, T1MF2S04RA, LTPH-UM-1261-01 Power and Frame Ground Procedure, Input Power Terminal Block TB1 Alarms Procedure
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T1MF2S04RA, HMS-318, LTPH-UM-1261-01 specifications

The ADC LTPH-UM-1261-01, HMS-318, and T1MF2S04RA are exemplary devices tailored for advanced data communications and network management. Each product is designed with unique features, technologies, and characteristics that cater to various applications in the telecommunications sector.

The ADC LTPH-UM-1261-01 is a high-performance unit that excels in low power consumption while providing reliable data integrity. Equipped with advanced error correction capabilities, this device ensures the seamless transmission of data over long distances. One of its standout features is its ability to support multiple transmission protocols, making it highly versatile for various applications. Its compact design allows for easy integration into existing systems, enabling operators to upgrade without significant infrastructure changes.

On the other hand, the HMS-318 is renowned for its enhanced connectivity options. It supports multiple interface types, including Ethernet, Serial, and Fiber optic connections, making it a highly adaptable solution for a variety of network configurations. The HMS-318 comes with built-in security features like encryption and authentication protocols, which safeguard data against unauthorized access. Additionally, its user-friendly interface makes configuration simple, allowing network managers to swiftly deploy and manage the device within their ecosystems.

The T1MF2S04RA represents the cutting-edge of telecommunications technology, particularly in the realm of T1 line functionalities. It is engineered to optimize the management of T1 circuits, facilitating efficient bandwidth allocation and monitoring. The T1MF2S04RA also features state-of-the-art diagnostic tools that provide real-time analytics, allowing operators to quickly identify and rectify issues. Its robustness ensures minimal downtime, which is critical for maintaining the reliability of telecommunication networks.

In summary, the ADC LTPH-UM-1261-01, HMS-318, and T1MF2S04RA stand out in their respective domains due to their innovative technologies and features. From enhancing data integrity to providing extensive connectivity options and advanced diagnostic capabilities, these devices exemplify the strides made in modern telecommunications. They are indispensable tools for operators seeking to enhance their network performance and reliability in a rapidly evolving technological landscape. Each product not only meets the current demands of the industry but also provides a scalable foundation for future growth.
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