Siemens ZIC-8B Installation Instructions Manual page 8

Siemens Industry, Inc.
Building Technologies Division
To calculate the maximum current, the following equation should be used:
ZIC-8B Total Current = ZIC-8B Standby Current + [Zone 1 Usage Req. (See Table above)
Example 1: If a ZIC-8BA has the following ZICCkt setting:
ZICCkt#1 — Speaker Zone - 2 Ch.
ZICCkt#2 — Speaker Zone - 2 Ch.
ZICCkt#3 — Speaker Zone - 2 Ch.
ZICCkt#4 — Speaker Zone - 2 Ch.
ZICCkt#5 — Speaker Zone - 2 Ch.
ZICCkt#6 — Speaker Zone - 2 Ch.
ZICCkt#7 — Speaker Zone - 2 Ch.
ZICCkt#8 — Speaker Zone - 2 Ch.
By applying the equation above, the maximum current requirement for this card will be
determined.
Max Current = 105 + 34 + 34 +34 + 34 +34 + 34 +34 + 34 = 377mA (worst case).
Example 2: If a ZIC-8B has the following ZICCkt setting:
ZICCkt#1 — NAC
ZICCkt#2 — Strobe Sync
ZICCkt#3 — NAC-Coded
ZICCkt#4 — NAC
ZICCkt#1 — NAC
ZICCkt#2 — Strobe Sync
ZICCkt#3 — NAC-Coded
ZICCkt#4 — Not Used
Max Current = 105 + 17 +17 + 17 + 17 + 17 + 17 + 17 +0 = 224mA.
+ [Zone 2 Usage Req. (See Table above)
+ [Zone 3 Usage Req. (See Table above)
+ [Zone 4 Usage Req. (See Table above)
+ [Zone 5 Usage Req. (See Table above)
+ [Zone 6 Usage Req. (See Table above)
+ [Zone 7 Usage Req. (See Table above)
+ [Zone 8 Usage Req. (See Table above)
8 P/N 315-048670-11