DE2061
1
:7:7:3
PENDANT TRANSMITTERS
Installation Instructions
,1752'8&7,21
The WT-201 is a series of miniature transmitters, designed to
send coded transmissions to wireless receivers of the WR-200
and WR-300 series. Transmission is activated by depressing the
recessed pushbutton at the center of the unit. Transmitters with
an A-suffix are equipped with a 4-channel selector. The
WT-201WP is a waterproof version of the WT-201.
All WT-201 units are supplied with the chain installed, to be worn
around the neck as a pendant transmitter. A key ring is also
included in the package, for use in place of the chain. Operating
power is obtained from a cylindrical 12-volt alkaline battery
(Duracell MN-21, Golden Power GP-23A or equivalent).
A LED lights during transmission, indicating the battery voltage
condition (lights when battery voltage exceeds 8 VDC). If the LED
does not light during transmission, the battery must be replaced
immediately.
Figure 1. WT-201 with Cover Removed
63(&,),&$7,216
Frequency (MHz): 315, 304, 404, 418, 433.92 or other frequen-
cies according to local requirements.
Encoding:
WT-201: 12-bit digital word, 256 combinations (using first 8
bits), pulse width modulation.
WT-201A: 12-bit digital word, 256 combinations plus selection
of up to 16 channels (using last 4 bits).
Power Supply: 12-volt alkaline battery (Duracell MN-21, Golden
Power GP-23A, or equivalent).
Attention: Transmitter characteristics may be affected by battery
condition.
Operating Temperature: 0° to 49°C (32° to 120°F).
Dimensions: 32 x 53 x 17 mm (1-1/4 x 2-1/8 x 11/16 in.).
Weight: 22 g (0.7 oz).
Color: White.
Compliance with Standards: Meets the requirements of FCC
Part 15. FCC ID: GSAWT201C
CANADA: 1467 101 534.
Also meets MPT-1340, ETS 300 220, ETS 300 339 and ETS
300 683.
,167$//$7,21
%DWWHU\,QVWDOODWLRQ
A. WT-201 and WT-201A
(1) Insert an 1/8 inch screwdriver blade in the slot at the bottom of
the case, and follow the steps shown in Figure 2.
Warning! Do not open the case by inserting a screwdriver in
places other than the slot. This can damage the transmitter.
Figure 2. Opening the Case
(2) Insert the 12-volt alkaline battery (Duracell MN-21 or Golden
Power GP-23A or equivalent) between the battery clips, so
that the (+) and (–) markings on the battery coincide with the
markings near each battery clip - see Figure 1. Check that the
battery is held securely by the battery clips.
(3) Gently press the pushbutton switch and verify that the LED
lights, indicating good battery condition.
(4) Carefully engage the ridges at the top end of the rear cover
with the dents at the top end of the front cover. Gently press
together the bottom ends of both covers, until they snap shut.
B. Waterproof Version WT-201WP
Waterproof units are shipped fully assembled but not closed, to
permit insertion of the battery before final sealing. The case is
made waterproof when its two halves are assembled and secured
together with 4 screws. To prepare the unit for use:
(1) Separate the two halves of the case and lay the unit down on
its back as shown in Figure 3. Insert the 12
V battery between
the battery clips. Observe polarity!
(3) Gently press the pushbutton switch and verify that the LED
lights, indicating good battery condition.
(4) Reassemble the two halves of the case and lay the unit face
down. Put a screw in each of the four holes on the back
(screws are supplied in a small bag packed with the unit).
Carefully tighten all 4 screws with phillips screwdriver No. 1.
The unit should now be watertight and ready for use.
Figure 3. Inside View of the WT-201WP
