E.F. Johnson Company VR-CM50 Manuel de l'opérateur télécharger pdf (Page 9)

GENERAL

1-4

Revised August 2001

Part No. 002-3139-078

Possible Causes:

• Channels are all busy at the Site and the WAM could

not activate its Group.

• More participants were programmed for a Site than

the number of available channels.

• Channels at a Site were not functional.

Possible Solutions

• Mark participants as temporary. This allows only

the necessary participants in all calls to be using

channels. Permanent participants will always be

brought up on channels where available.

• Reduce the number of participants in a Wide Area

Call that use the same Site.

• Increase the number of channels at a Site or fix any

channels that are malfunctioning.

Alarm 268 No Available WAMs - This indicates that

the criteria for WAM take over was not met and there-

fore a call that needed a WAM could not get one.

Possible Causes

• All WAMs have been in use within the Maximum

Inactive Time window. This essentially means that

all WAMs are being used simultaneously.

• All WACs have a higher priority than the one

attempting to come active and the Maximum Inac-

tive Time has not expired on any WAMs.

Possible Solutions

• Decrease the Maximum Inactive Time. Keep in

mind that the lower the number, the higher the prob-

ability of interrupting conversations. It is recom-

mended that no less than 5 seconds be used.

• For more important WACs, increase the WAC

priority to allow the higher priority WACs to ignore

the Maximum Inactive Time.

1.4 SYSTEM MANAGEMENT

1.4.1 SYSTEM ADMINISTRATOR

The System Administrator configures the System

and Subscriber Managers to allow selection of

Networks and User Privileges for the System Opera-

tors. The System Administrator also performs the

following required administrative procedures:

Periodic Reboot

A feature of the Call Processor application is the

automatic creation and maintenance of a backup set of

tables. This action is performed at start-up. To ensure

that this backup is usable, the system needs to be

rebooted after major configuration changes occur.

For instance, after the cards are initially config-

ured, reboot to allow this information to be copied to

the backup set of tables. Also, the resource manage-

ment of Windows NT

may cause the slow loss of

available resources. To recover them, it is necessary to

reboot. The frequency of service depends on the type

and amount of activity on the system.

Database Backup

Since the operational characteristics of the system

depend on the information in the configuration tables,

it is recommended that a backup copy be kept of the

current information on a separate medium (tape, CD-

RW, multiple floppies, a different hard drive, etc.).

When the Call Processor is not operating, copy the

entire contents of the RunTimeModel directory.

Regular backup of the full drive contents is the

preferred course of action.

1.4.2 SYSTEM OPERATORS

System Operators are assigned User Privileges by

the System Administrator. These privileges determine

what the operator is allowed to do using the System

and Subscriber Manager.

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E.F. Johnson Company VR-CM50 Manuel de l'opérateur Page 9

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