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Guardian Telecom Inc.
Installation and Operation
Model WRT-A
Page 6
Setting Dialing Mode
The WRT-A is shipped from the factory set for DTMF (Tone) dialing mode. If
loop disconnect (Pulse) dialing is required proceed as follows.
See: Figure 3 - Setting
Dialing Mode &
Installation
• Loosen the five captive screws in the faceplate and swing the faceplate to
the left. If the set is on a vertical surface the faceplate will stay open like a
book in this position. Take care not to disturb the internal wiring.
• Change the position of the Tone/Pulse jumper on the circuit board to Pulse,
as indicated on the label.
• The set will now be in pulse dialing mode, it can be returned to tone mode
by changing the position of the jumper back to the Tone position.
• Carefully replace the front plate and install all five screws. Do not over
tighten the cover screws, there is a flexible gasket between the cover and
the body. Excessive tightening of the screws deforms the gasket and
reduces the weather resistance of the set.
TIP & RING CONNECTION
GROUND CONNECTION
PHONE
LINE
Guardian Telecom Inc.
Calgary, Canada
S/N:____________
HANDSET
RIN-
GER
HK
SW
TONE/
PULSE
F
TONE/PULSE
JUMPER
Figure 3 - Setting Dialing Mode & Installation