JMG Systems Ltd 627T 사용자 설명서

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JMG Systems Ltd
68A Derry Road, Omagh, Co. Tyrone, N. Ireland, BT78 5ED
Tel:
+44 (0)28 8224 4131
Fax:
+44 (0)28 8225 2686
e-mail:
info@jmgsystems.co.uk
USER MANUAL FOR REMOTE CONTROL TRANSMITTER
Model TX4A
JMG TX user manual.DOC
Page 1 of 2
11 May 2002
FCC Compliance
FCC ID: QBZ627T
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired
operation.
CAUTION:
Changes or modifications not expressly approved by JMG Systems Limited could void the user's authority to operate this
equipment.
General Description
The Model TX4A Remote Control Transmitter is a small, handheld, battery powered,
914.5MHz radio transmitter unit which permits the remote control of four separate
auxiliary functions in quarry and other heavy machinery.
Front and rear views of the Model TX4A Remote Control Transmitter are shown in
the photographs on the right and below.
There are 5 operating buttons, labelled 1, 2, 3, 4, ON, and an LED (light emitting
diode) indicator on the front face of the unit. Buttons 1 to 4 are transmit buttons. A
special feature of the Model TX4A is the ON safety button.  The purpose of the ON
button and the 2 minute timeout sequence is to minimise the risk of accidental
transmissions when, e.g., the unit is being carried in the user's pocket.
The rear face of the unit is fitted with a belt clip and the battery compartment lid.
Safety
THIS UNIT MUST ONLY BE OPERATED BY AUTHORISED PERSONNEL. THE
SAFETY PROCEDURES RELEVANT TO THE MACHINERY BEING
CONTROLLED MUST BE OBSERVED. PRIOR TO EACH TRANSMISSION THE
OPERATOR MUST HAVE CLEAR VISUAL SIGHT OF THE ITEM TO BE
CONTROLLED.
Operation
Press the ON button twice to enable the transmit buttons.
(Note - The interval between the two presses must be less than 2 seconds).
The LED will flash once to indicate that the transmit buttons are active.
If no transmit button is pressed during an ON period of 2 minutes (approximately), the
transmit buttons are automatically inhibited.
Pressing a transmit button restarts the 2 minute timeout.
The LED repetitively flashes whilst a transmit button is pressed