NOTES
1. See TBH-104 talkback Horn installation
instructions for application of 2 horns
in one location.
2. For multiple talkback speakers or horns
in the some location, see product
bulletin # 52-88.
3. The ZC-9 can switch an audio input
from a central amplifier of up to 150W @ 70V, or
100W @ 25V. This TOTAL SYSTEM
audio input can
be distributed to up to 9 zone outputs, provided no
single zone exceeds:
(A) 70W @ 70V, leaving 80W for the remaining 8 zones
or
(B) 25W @ 25V, leaving 75W for the remaining 8 zones.
4. The ZC-9 can switch its preamplifier audio output
to the 600 ohm inputs of up to 150 zone amplifiers or
speaker-amplifiers. This TOTAL SYSTEM
audio
output can be distributed to up to 9 zone outputs,
provided no single zone exceeds 25 amplifier inputs,
which would leave 125 amplifier inputs for the
remaining 8 zones.
CHART 6:
MAXIMUM AMPLIFIER AND SPEAKER CAPABILITY
MOUNTING INSTRUCTIONS:
The ZC-9 is designed for indoor surface wall mounting near the telephone system. Remove the ZC-9 cover from the base (containing the PC board
assembly) by removing the screw on each side of the unit. Two keyholes and two circular holes are provided in the base for easy installation. A diagram
for mounting screw hole locations is given in FIGURE 5. Recommended screw sizes are #6, #8, or #10 screws. Be sure to use mounting hardware
suitable for the mounting surface.
CAUTION: These devices are not intended for use in hazardous locations as defined by the National Electrical Code (NEC) and by the
National Fire Protection Association (NFPA).
FIGURE 5.
MOUNTING DIAGRAM
P81835 E
Sheet 5 of 12
SPECIFICATIONS
SUPPLY VOLTAGE (NOMINAL) -24VDC
MAXIMUM CAPACITY
AMPLIFIER
CONFIGURATION
TOTAL
SYSTEM
EACH ZONE
Central Amplifier(s) 150W @ 70V
100W @ 25V
70W @ 70V
25W @ 25V
(See note 3)
Zone amplifiers, or
speaker-amplifiers
(one-way) paging
150 amplifier
inputs
25 amplifier
inputs
(see note 4)
Wheelock amplified
talkback speakers
and horns (TBM-101
and TBH-104)
9 speakers or
horns (see Notes
1 and 2)
1 speaker or horn
(see notes 1 and 2)
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