User`s guide

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VIP Logic Use the UP/DOWN arrow keys to select the desired Vehicle Interface
Port (VIP) Logic. There are two possible choices:
TOT Duration (sec) Use the UP/DOWN arrow keys to select the desired Time-Out Timer
(TOT) Duration. The TOT Duration indicates the maximum allowed
time for base-to-portable transmissions. Any signal originating from
the base is timed and will be dropped as soon as the stipulated TOT
duration expires. Valid values are Infinite (for unlimited
transmissions), 30, 60 and 120 seconds.
Singletone Freq (Hz) In this implementation, you will NOT be able to change the setting for this
feature. When the Vehicular Repeater System—Expanded Protocol
(VRS-EP) unit is activated, it transmits a 700-millisecond tone
(Singletone) which is relied upon by other VRS-EP units operating in
the same area. This signal burst is used by the area units to coordinate
the VRS-EP automatic prioritization routine. All units in the fleet
should be programmed with the same VRS-EP Singletone frequency if
they are to be used in multi-unit operations.
VRS-EP Tx Squelch Type Use the UP/DOWN arrow keys to select the Vehicular Repeater
System—Expanded Protocol (VRS-EP) Tx Squelch type to be used
during signal repeats or broadcasts originating from the unit. The VRS-
EP Tx Squelch type indicates the squelch scheme to be used by the
VRS-EP during a signal broadcast. Transmissions from the VRS-EP will
only be audible to a radio within the VRS-EP's transmission range if
that radio's receive squelch type and setting match the VRS-EP's Tx
Squelch designation. The options are:
VRS-EP Tx PL Freq Enter the Tx PL (Private-Line) frequency directly in Hz or, if accessing
the frequency entry's alpha-numeric code field, enter the desired PL
code. The UP/DOWN arrow keys may also be used to scroll through
the standard frequencies or codes, all of which are shown below. The
PL code may also be selected by pressing the key matching its first
letter and then scrolling to select the exact code.
The Transmit (Tx) PL indicates the PL tone accompanying signals sent
out by the Vehicular Repeater System—Expanded Protocol (VRS-EP). A
portable radio within the VRS-EP's area of operation will be able to
‘hear’ broadcasts from the system only if that radio's receive PL
frequency matches the indicated VRS-EP frequency.
Active Open The Vehicular Repeater System—Expanded Protocol
(VRS-EP) unit will be activated when there is no
connection between the two VIP pins, meaning the VIP
switch is in the open position.
Active Closed The VRS-EP unit will be activated when the VIP pins are
shorted together, meaning the VIP switch is in the
closed position.
TPL Tone Private Line Squelch transmission. The VRS-EP will
broadcast a tone of a given frequency along with all voice
transmissions.
CSQ Carrier Squelch transmission. The VRS-EP will broadcast a
simple carrier presence signal with voice transmissions.