ETS-Lindgren 2181 Turntable - Manual (Page 18)

18 | Electrical Installation
To feed the fiber optic connectors through the waveguide in a chamber, it may be
necessary to remove part of the protective sheath. This removal allows the
connectors to fit through the hole without excessively bending the fiber optic
cable. Find and mark the spot where you will need to remove the sheath. Use a
sharp knife to carefully cut around the outside of the sheath at each end of the
defined area. Cut very lightly to avoid cutting into the fiber optic cables, and then
bend the sheath back and forth to expose the fiber optic cables.
Next, make a cut down the length of sheath area, being careful not to cut into
fiber optic cable. Inside the sheath are two pieces of white string. Find the string
and use it to split the sheath open. Insert the fiber optic cable into the waveguide.
Connecting the Model 2090 Controller
Any combination of primary devices (towers, turntables, reverberation paddles,
MAPS, and so on) can be connected to the two device interface ports located on
the rear panel of the Model 2090 Series Multi-Device Positioning Controller. For
easy set up of an EMC facility, it is recommended that the turntable be connected
to the Device 2 port. The default settings for the controller are for a tower
connected to the Device 1 port and a turntable connected to the Device 2 port.
Primary device connection is accomplished with a dual fiber optic cable included
with the device. This cable terminates into two ST connectors that are identical at
both ends. The cable is symmetrical, so either end can be connected to the
controller. A fiber optic cable connected to the IN port of a device should be
connected to the primary OUT port of the motor base at the other end. Similarly,
a fiber optic cable connected to the OUT port of the device should be connected
to the primary IN port of the motor base at the other end. Older motor base
designs have only one fiber optic connector pair, but the newer motor base
interface provides a secondary interface reserved for future expansion.
Fiber optic cabling for each device should not hang unsupported from the rear
panel of the controller. The fibers and connectors are easily broken if twisted or
bent. Keep the fiber optic cables as straight as possible from the connector to
the protective sheath.
Using the Model 2090 controller or optional Infrared Remote Controller
(IR remote), rotate the motor base shaft to verify proper operation. Run the
motor base down to the lower limit counterclockwise, and then back it off from
the lower limit a small amount. The previous step will help when it is time to set
the rotation limits for the turntable.
The soft rotational limits in the Model 2090 controller must be
set. Make sure the travel limit settings will not cause damage to
user installed cables and equipment mounted on the table.