Siemens ZIC-4AC Instrukcja instalacji - Strona 7

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Siemens ZIC-4AC Instrukcja instalacji

ELECTRICAL RATINGS

24V Back Plane Current
Screw Terminal 24V Current
6.2V Back Plane Current
24V Standby Current
The 24V backplane current is dependent on the usage and wiring type of
each ZICCkt of the ZIC-4AC. Listed below are the required current draws for
each zone and wiring type.
ZIC-4AC Backplane Current Requirement
Zone Usage
Not Used
Strobe – Sync.
Strobe – Unsync.
Speaker Zone
ZIC-4AC Module Current = 89mA
To calculate the maximum backplane current, the following equation should
be used:
ZIC-4AC Module Current
Example 1: If a ZIC-4AC has the following ZICCkt setting:
ZICCkt#1 - Speaker Zone Class A
ZICCkt#2 - Speaker Zone Class A
ZICCkt#3 - Speaker Zone Class A
ZICCkt#4 - Speaker Zone Class A
By applying the equation above, the maximum backplane current requirement
for this card will be determined.
Maximum Backplane Current =
89 + (34 + 6) + (34 + 6) + (34 + 6) + (34 + 6) = 249mA (worst case)
7
see NOTE below
Total Device Current
0
Same as 24V Back Plane Current
Output Current
Class A Current
Requirement
Requirement
0
17mA
17mA
34mA
+ Zone 1 Usage Req.(See Table above)
+ Class A current (if Class A)
+ Zone 2 Usage Req.(See Table above)
+ Class A current (if Class A)
+ Zone 3 Usage Req.(See Table above)
+ Class A current (if Class A)
+ Zone 4 Usage Req.(See Table above)
+ Class A current (if Class A)
0
6mA
6mA
6mA
A24205-A334-B827
P/N 315-035850-2