GAI-Tronics SSM110 Card Rack Assembly - Manual (Page 15)

Pub. 42004-669L2E
SSM110 Card Rack Assembly Installation, Operation, Maintenance Manual Page: 13 of 26
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System Status and Status Reporting
The system status indicators notify the operator of system events and trouble conditions. System status
can be presented in several ways, depending on the system configuration. The following methods are
available:
• Text messages on the access panel display (if equipped with a display)
• Access panel indicators that turn on and off
• Access panel buzzers that start and stop
• Lights on cards in the card rack that turn on and off
• Text messages that print on a printer
• Device fault and restore events
• Operational events (page line activity)
Status Messages
N OTE : Not all access panels are equipped with displays. The following section pertains to access panels
that are equipped with displays.
The system sends status messages to the operator. Status messages are text messages that are indicated on
the access panel display and printed on the printer. The system configuration specifies which messages
are sent to the operator and whether they are reported on the system printer, an access panel display, or
both. The configuration further specifies which types of messages sent to access panels require the
operator to acknowledge them. The actual configuration of the status messages will be determined at
system startup.
Display History Buffer
The system puts messages in a queue called the History Buffer. Messages that require status message
reporting are sent from the history buffer to the access panels. The system can accommodate a maximum
of two history buffers, and each can store up to 100 messages. Each history buffer is associated with one
specific access panel that contains any of the following: a display, a buzzer indicator, a buzzer flash
indicator, or a history level status indicator.
Messages are arranged within a history buffer according to a priority scheme.
Group 1 messages are messages that are waiting for acknowledgment. The messages are arranged by
type in descending order of priority. Within each type, the messages are arranged oldest to newest.
1. Trouble messages
2. Restore messages
Group 2 consists of messages that do not require acknowledgment and messages that have been
acknowledged, but the condition persists. Messages are arranged by the following types in descending
order of priority.
1. Trouble messages
2. Operational messages (page activity)
3. Restore messages