Thank you for purchasing TOA’s Ceiling Mount Speaker.
Please carefully follow the instructions in this manual to
ensure long, trouble-free use of your equipment.
Indicates a potentially hazardous situation which,
if mishandled, could result in death or serious
personal injury.
WARNING
Indicates a potentially hazardous situation which,
if mishandled, could result in moderate or minor
personal injury, and/or property damage.
CAUTION
INSTALLATION
MANUAL
CEILING MOUNT SPEAKER
PC-1860S
1. SAFETY PRECAUTIONS
• Before installation or use, be sure to carefully read
all the instructions in this section for correct and
safe operation.
• Be sure to follow all the precautionary instructions
in this section, which contain important warnings
and/or cautions regarding safety.
• After reading, keep this manual handy for future
reference.
• Install the unit only in a location that can structurally
support the weight of the unit and the mounting
bracket. Doing otherwise may result in the unit
falling down and causing personal injury and/or
property damage.
• Do not use other methods than specified to mount
the unit. Extreme force is applied to the unit and
the unit could fall off, possibly resulting in personal
injuries.
4. SPECIFICATIONS
Note: The design and specifications are subject to change without notice for improvement.
• Avoid touching the unit's sharp metal edge to
prevent injury.
• To avoid electric shocks, be sure to switch off the
amplifier's power when connecting speakers.
• Do not operate the unit for an extended period of
time with the sound distorting. This is an indication
of a malfunction, which in turn can cause heat to
generate and result in a fire.
2. GENERAL DESCRIPTION
Integrated with a speaker unit and panel, the PC-1860S
Ceiling Mount Speaker is of metallic construction and ideal
for use in a voice alarm system. It features spring catch
mechanism for easy speaker mounting to the ceiling.
The input impedance can be easily changed by changing
the tap position of the transformer.
The push-in type input terminal block makes cable
connections easy and allows bridge wiring.
3. WIRING DIAGRAM
8 Ω
13 kΩ
6.7 kΩ
3.3 kΩ
1.7 kΩ*
* Factory-preset
0
COM (white)
COM
(–)
HOT (black)
HOT
(+)
Matching
transformer
Input connector
COM
Rated Input
6 W (100 V line), 3 W (70 V line)
Rated Impedance
100 V line: 1.7 kΩ (6 W), 3.3 kΩ (3 W), 6.7 kΩ (1.5 W), 13 kΩ (0.8 W)
70 V line: 1.7 kΩ (3 W), 3.3 kΩ (1.5 W), 6.7 kΩ (0.8 W), 13 kΩ (0.4 W)
Sensitivity
94 dB (1 W, 1 m) (500 Hz – 5 kHz, pink noise)
Frequency Response
80 Hz – 20 kHz (peak –20 dB)
Speaker Component
12 cm (5") cone-type
Dimensions for Fixing Hole
Mounting hole:
ø150 ±3 mm (ø5.91" ±0.12")
Ceiling thickness: 5 – 25 mm (0.2" – 0.98")
Speaker Mounting Method
Spring catch
Operating Temperature
–10 to +50 °C (14 to 122 °F)
Applicable Cable
Solid wire: 0.5 – 3 mm² (AWG 20 – 12)
Connection
Push wire connection (Bridging terminal-2 branch type)
Finish
Frame:
Steel plate, white (RAL 9016 equivalent), paint
Grille:
Steel net, white (RAL 9016 equivalent), paint
Mounting bracket: Steel plate, plating
Dimensions
ø180 x 5 (exposed section) + 101 (d) mm (ø7.09" x 0.2" + 3.98")
Weight
750 g (1.65 lb)
Accessory
Paper pattern ................................... 1
