Siemens ZAM-180 Installationsanleitung Handbuch - Seite 9
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Loc. Audio IN B
Loc. Audio IN A
SUPERVISED
NOT POWER LIMITED
Speaker Line 1 A
Speaker Line 1 B
Speaker Line 2 A
Speaker Line 2 B
Speaker Line 2 A
Speaker Line 1 A
Speaker Line 1 B
Speaker Line 2 B
* shipped with the ZAM-180
NOTES (Speaker Lines and Backup Amplifier)
1.
Wiring can be Class A or Class B.
2.
Use twisted pair or shielded twisted pair.
3.
Terminate shields at one end only.
4.
Supervised and not power limited.
Figure 13
ZAM-180 Class A Wiring
A24205-A334-B832 (Edition 1)
P/N 315-035600-2
The configuration of the speaker lines is selectable between Class A,,
Class B, or 2 x Class B.
Class A: The speaker line is looped back to the system. The end of line
resistor (EOL) is connected directly at the ZAM-180 (CC-5/-2). In this
configuration the line works during an open circuit condition by feeding it
from both sides. In the short circuit condition, the speaker line is not
functional.
Shield
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
9
EOL = 68k
P/N 140-034728 (US/CA)
C24235-A1-K13 (DE)
9
Loc. Switch A
Loc. Switch B
15
16
Back-Up Amp B
Back-Up Amp A
NOTES (Local Audio)
1.
24AWG (Ø 0,5mm) min., 12 AWG (2,5mm²)max.
2.
Use twisted pair or shielded twisted pair.
11
12
3.
Terminate shields at one end only.
4.
Must be within 20 feet and in rigid conduit.
68k
*
NOTES (Local Switch)
1.
24AWG (Ø 0,5mm) min., 12AWG (2.5mm²) max.
2.
Use twisted pair or shielded twisted pair.
3.
Terminate shields at one end only.
4.
Must be within 20 feet and in rigid conduit.
5.
Connect to dry contacts only.