- 32 -
CHANNEL LINK
TALK AROUND
LINK TO TRUNKED REPEATER
INTERFACE
UP TO 1,000'
TRUNKED CHANNEL
CABLE
1st RESPONDER
BELOW GRADE OR IN-BUILDING
1
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LAND MOBILE R ADIO INTERFACE
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3
4
5
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TELEPHONE
HANDSET
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COMMUN ICATIONS-APPLIED T ECHNOLO GY (C-AT )
INCIDENT COMMANDERS' RADIO INTERFACE ( I C R I )
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ICRI radio interface 250’ cable extension (cable-reel)
Positioning one or more of the radios, to be connected to the ICRI,
may be desirable for one of several operational reasons:
•
The personnel associated with a radio will be located inside a
building for which there is poor RF coverage from the ICRI’s
location.
•
The personnel associated with a radio will be located inside a
tunnel or other below grade area for which there is poor RF
coverage from the ICRI’s location.
•
Radios operating in very close proximity to one another,
negatively effect the performance of other another, such as receiver
desensing.
The personnel—equipped with compatible radios—in the same general location of the reel-mounted
radio, will be able to communicate with those operating radios or the handset also connected to the
ICRI. See Figure X
The extension cable is inserted between the ICRI and the radio interconnect cable, that is usually
connected directly to one of the radio ports on the ICRI front panel. See Figures Y and Z.
Figure XXXX
It is important to note that the cable must be
unspooled from the reel BEFORE the radio
interface cable is connected, as the rotation of the
reel---otherwise the cable will twist and damage
the cable. See Figure XX
Multiple extension cables can be connected
together to extend the distance between the radio
and the ICRI, without effecting the performance of
the radio link.
It is strongly recommended that the radio link be
tested before the personnel enter the area of poor RF propagation, so that any defects with the
cable or the connections will be noted before a safety issue arises--due to a lack of radio
communications.
Figure XXXXX
Содержание ICRI
Страница 13: ... 10 FIGURE 16 TWO RADIOS CONNECTED TO ICRI ...