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Installation
Configure the ZAC-30 for primary or
backup operation.
 If the ZAC-30 is a primary amplifier,
set DIP switch SW5 of S2 to OPEN
or OFF.
 If the ZAC-30 is a backup amplifier,
set DIP switch SW5 of S2 to
CLOSED or ON.
 DIP switches SW1SW4 of S2 are
not used.
IMPORTANT: Primary and backup
amplifier voltage settings MUST
match. The backup amplifier voltage
settings on J1 and S4 must be the same
as the settings on the primary amplifier(s)
that it is backing up. AN ERROR IN THE
SETTING(S) MAY CAUSE IMPROPER
FUNCTIONING OF THE SYSTEM. Full
testing must be done to ensure satisfac-
tory operation.
If one backup amplifier is shared by
more than one ZAC-30, connect
terminal 3 of the OMM-1 terminal block
for the primary ZAC-30 to terminal 3 of
all other ZAC-30 cards that share the
same backup amplifier.
If the system has NO backup ampli-
fier, place a jumper across terminals 3
and 4.
Place the user key from the installation
kit in the OMM-1 card edge connector
for the ZAC-30 (between positions 45-
46 and 47-48).
After the address is set, install the
ZAC-30 in the OMM, being sure that
the module is riding in the card guides
and is firmly seated in the card edge
connector.
NOTE: The heatsink on the board
must face the 22 position terminal
block where the wiring terminates.
To configure the ZAC-30 for 25.2V
RMS operation, follow the silkscreen
markings for 25V on the PC board and
the steps below.
On the Front Side of the Board:
 Place Jumper J1 on the pins nearest
the card edge connector (25V).
 Push the S4 slide switch toward the
center of the PC card (25V setting).
On the Back Side of the Board:
 Replace F1 and F2 with the two
2.5A minifuses (P/N 105-291203)
that are supplied.
To configure the ZAC-30 for 70.7V
RMS operation, follow the silkscreen
markings for 70V on the PC board and
the steps below.
On the Front Side of the Board:
 Place Jumper J1 on the pins away
from the card edge connector (70V).
 Push S4 toward the edge of the PC
card (70V setting).
On the Back Side of the Board:
 Verify that F1 and F2 are 0.8A,
P/N 105-292965.
ZAC-30 S1 SETTINGS
Address 4 3 2 1 Address 4 3 2 1
ILLEGAL O O O O 008 X O O O
001 O O O X 009 X O O X
002 O O X O 010 X O X O
003 O O X X 011 X O X X
004 O X O O ILLEGAL X X O O
005 O X O X ILLEGAL X X O X
006 O X X O ILLEGAL X X X O
007 O X X X ILLEGAL X X X X
X=Closed or ON O=Open or OFF
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