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OPERATION

CM9760-SAT

3-9

3.3 SAT AND SAT-ALARM UNIT CONFIGURATIONS

Two SAT Units on the Same NODE

One

SAT

unit can generate 16 possible alarms. Each alarm results in a 9760 system alarm if the

SAT

alarm is assigned a System Alarm

number in the

SAT

ALARMS file (see

Section 2

Alarm Programming Menu-Page 1 of 1

Moreover, each System Alarm number (on the

SAT SIDE

) corresponds to the same number in the Physical Number column of the ALARM

configuration file (on the

9760 SIDE

If two

SAT

units are connected to the 9760 system, 32 possible alarms notifications can be generated by the

SAT SIDE

and passed on to the

9760 system. Theoretically, it doesn’t matter which numbers (of those available) you pick to use as System Alarm numbers as long as you do
not repeat any number among the total used by all

SAT

units

and

ALARM units combined. We shall discuss 9760-ALM units mixed with

SATs

shortly, but first consider two

SAT

units on the same node.

The portions of the

SAT

Alarms menu and the 9760 ALARM configuration file that relate to our discussion are shown below in Figure 3-25.

Even here, you can see that there are different ways of configuring the menus involved. Usually, the simplest is the best. Here, the simplest is
to associate the first 16 (1-16) System Alarm numbers with

SAT

1 and the second 16 numbers (17 to 32) with

SAT

2. The associated Physical

Number column’s range in the 9760 ALARM configuration file runs from 1 to 32 (1-16 for

SAT

1 and 17-32 for

SAT

2).

Figure 3-25

SAT Alarm Configuration – Two SATs

For each 9760 Physical Number (1-32) in the configuration file, an associated Logical number is assigned. The Logical number is used to ARM
the alarm from the 9760 keyboard. Each Physical Number (or defined alarm) is also associated with a Logical camera number in the Alarm
Camera Switcher sub-window of the 9760 Alarm configuration file (see

Section 3

3.2 9760 System-SAT Alarm Response

). The camera

referenced there will be called by the 9760 when the associated alarm is triggered. The logical camera numbers, which in this case are

SAT

satellite cameras, are port specific with respect to the

SAT

unit that they belong to. That relationship, in turn, is determined by the configuration

of the Link Cameras configuration file (see

Section 2

3.3 Link Cameras File

Once configured, alarm response for each alarm occurring on any unit is the same as that already described in the previous section.

(The Simplest)

(A Variation)