Headset Module/Hm-1; Operation; Headsets; Headset Adjustments - Firecom 3000A Installation & Operator's Manual

3000A
HEADSET MODULE HEADSET MODULE HEADSET MODULE HEADSET MODULE HEADSET MODULE
Note that the modular cables plug into each module on
the side below the label. The connector on the opposite
side is for daisy-chaining. Headset modules may be
daisy-chained to the same intercom connection, but only
one headset may be used at a time on each chain.
Plug Socket for Daisy Chain
Plug
Cable from
Intercom
Headset Module
TOP VIEW
Do a final location check to ensure that the headset cable
lengths and mounting clearances are adequate before
securing the modules.
Reminder: Reminder: HM-1 Headset Modules should be placed in Reminder:
Reminder: Reminder:
the cab with the following in mind.
→ → → → → Locate the modules close enough to the side window
to enable the driver and engineer to have an unobstructed
view out the windows without putting a strain on the
cables.
→ → → → → If possible, locate the modules so that the jacks face
in the direction of exit from the cab. This can prevent
damage if the headset wearer inadvertently forgets to
remove the headset when exiting.
1. Mark the desired location of the module mounting
holes.
2. Drill two holes and secure the modules using two #8
sheet metal screws (provided).
3. Plug unused, exposed connections with silicone
sealant to avoid problems from salt air or excessive
moisture.
Headset modules mounted in exposed locations such
as a pump panel should be contained in a water proof
enclosure. Waterproof enclosures containing headset
modules with cables attacked are available from Fire-
com.
Headset
Jacks
Mounting
Hole(2)
Label
Plug Socket
OPERA OPERA TION TION
OPERA OPERA

OPERATION

TION TION

HEADSETS

HEADSETS
HEADSETS HEADSETS HEADSETS
The FIRECOM system offers two types of headsets:
Radio Transmit Headset and Jumpseat Headset. Refer
to photos on page 1. Other optional headsets may also
be supplied.
All headsets must be plugged into a Headset Module for
operation.
Radio T Radio T Radio T Radio Transmit Radio T ransmit ransmit ransmit ransmit
Radio T Radio T Radio Transmit Headset: Radio T Radio T ransmit Headset: ransmit Headset: ransmit Headset: ransmit Headset: This headset receives both
intercom and radio communications at all times. It is
also hands-free, voice-activated to the intercom. When
you wish to transmit over the radio, simply depress and
hold the RED RED RED RED RED Push-To-Talk (PTT) button. This headset
is typically located at the Driver, Officer, and Pump Panel
positions.
Jumpseat Jumpseat Jumpseat
Jumpseat Jumpseat
Jumpseat Headset: Jumpseat Headset:
Jumpseat Headset: This headset receives both inter- Jumpseat Headset: Jumpseat Headset:
com and radio communications at all times, but it is not
radio transmit capable. It is typically located at the
jumpseat position. Due to the higher ambient noise level
at this location (engine noise, etc.) it is not voice-acti-
vated. When you wish to speak over the intercom, de-
BLACK BLACK
press and hold the BLACK BLACK BLACK PTT button.

HEADSET ADJUSTMENTS

HEADSET ADJUSTMENTS HEADSET ADJUSTMENTS HEADSET ADJUSTMENTS HEADSET ADJUSTMENTS
All "FH" headsets have adjustable headbands with slide
mechanisms located at each side above the ear domes.
Adjust for a comfortable fit. If the adjustment slides be-
come loose, gently tighten the self-locking hex nuts. All
"UH" (Under-the-Helmet) headsets have an adjustable
velcro head strap. Adjust either type of headset to posi-
tion the liquid-filled ear seals for best noise reduction and
comfort. Washable cloth covers are provided to absorb
moisture. Replacement covers are available from Fire-
com.
5