User Guide

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6
SPEAKER-MICROPHONE
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■ Attachment
Attach the connector of the speaker-microphone into the [SP MIC]
connector on the transceiver and tighten the screw.
Detaching:
Unscrew (q),
then detach the
jack cover (w).
Attaching:
Attach the
jack cover
(e), then
tighten the
screw (r).
CAUTION: Attach the
speaker-microphone’s
connector securely to
prevent accidental
dropping, or water
intrusion in the connector.
q
w
e
r
IMPORTANT: KEEP the [SP MIC] jack cover attached (trans-
ceiver) when the speaker-microphone is not in use. Water will
not get into the transceiver even if the cover is not attached,
however, the terminals (pins) will become rusty, or the trans-
ceiver will function abnormally if the connector becomes wet.
CAUTION: For ATEX compliance in hazardous areas, the jack
cover just also be attached when the HM-138 is not being used.