Alpha XM 6015 Series Operations Instructions download pdf (Page 45)

Status Monitoring Using USM-A

6.11 USM (Universal Status Monitor),

continued

6.11.2 Serial Configuration

HEM

Power Supply Power Supply Power Supply

Power SupplyPower Supply

Polling Computer

(with Alpha Soft)

HUB

Cable Headend or Office

PSM

6. INSTALLATION

USM-A

The USM, used in conjunction with Alpha's status monitoring software, allows the

cable operator to remotely manipulate power supply functions, maintain precise data for

fault logs and direct service personnel to the exact nature of most malfunctions. Using the

simple and direct, menu-driven AlphaSoft program, vital power supply information such as

High and Low Battery Warnings, Battery Fail, Inverter ON, AC Main Fail and other critical

alarm conditions can be obtained instantaneously, thus greatly reducing overall operation

and maintenance costs.

Computer commands are converted into modulated radio frequency signals by the

HEM (Headend Modem) before being transmitted throughout the cable system. They are

received by the PSM (Power Supply Modem) located at each power supply location and

directed to the USM(-A) logic card. Power supply data is then re-transmitted back at sub-

low frequencies.

When faults are detected, the information is displayed on the terminal and written to a

dedicated file on the computer’s hard drive or printer. The system consists of:

XM Series Power Module

USM(-A) Logic Upgrade

RF Power Supply Modem (PSM)

RF Headend Modem (HEM)

Headend Computer (DOS compatible - 286 or higher)

AlphaSoft Status Monitoring Software

A segment of the information transmitted between the power supply and the computer

contains a binary address specific to each power supply in the system. The power supply

address must be set using DIP switches located on the USM (see setting chart and switch

location illustration on page 33). Each address must then be entered into the AlphaSoft

program for access by the polling computer. The PSM interface cable plugs into the serial

connector located on the USM card (see illustration on page 32).

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 60 61

No comments

Alpha XM 6015 Series Operations Instructions Page 45