Wiring And Setting Up - Tannoy CMS PI Series Quick Start Manual

16
CMS PI SERIES
Step 2
Attach conduit to the backcan using one of two methods:
Method 1:
Use the clamp at the back of the pre-install backcan. The product will accept a
squeeze connector with a thread size of up to 22 mm. To remove the cable clamp,
simply unscrew the threaded washer (under the wiring cover) which holds the cable
clamp in place and replace it with a conduit squeeze connector. (Fig.4)
Method 2:
Use any of the three knock-out points at the sides of the backcan (19 mm, 22 mm or
28 mm diameter). (Fig 5)
Step 3
If conduit not used, run approved speaker cable to the installed can. Terminate in the top-mounted cable clamp or
with an approved cable connector in one of the three knock-out points at the sides of the backcan.
Step 4
Cut a hole in the proper ceiling location using the supplied cut-out template (self-adhesive backing) and a pad saw.
Place the pre-install backcan over the hole.
Step 5
Proceed to Section 5 following on wiring and setting up. Return to Step 6 below.
Step 6
Slide the speaker assembly through the hole. Turn the screws (denoted "Screw Fix")
clockwise on the front of the speaker to extend the mounting wings. Tighten the
screws until a firm grip is achieved.
(Note: Screws have a PoziDriv head; use of a PoziDriv driver is recommended). If
using a power driver, Tannoy recommends a torque setting of 1.5 Nm. (Fig.6)

Wiring and Setting Up

1. Open the wiring cover (if applicable) and locate the Euro-type connector plug and
socket at the back of the speaker. (Fig.1)
2. For connection to an amplifier, use Pins 1 and 2
• • Pin 1 is positive
• • Pin 2 is negative
For connection to additional speakers in a distributed line, Pins 3 and 4 are in
parallel where:
• • Pin 3 is negative
• • Pin 4 is positive
3. Close the wiring cover and tighten both screws on the cable clamp (if applicable).
4. Use the rotary switch on the front of the unit to select low impedance (LoZ) mode or high impedance (70 V or 100 V)
for distributed applications.
The speaker is supplied in low impedance mode. Never connect the speaker to a 70 / 100 Volt amplifier while it is set
for low impedance.
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Quick Start Guide