Tyco Electronics M7200 - Manual (Page 42)

MM-011553-001, Rev. A
42
When using the SOI mode, both the V-TAC and any connected portable or mobile
radios (the clients) are off the OpenSky network. Therefore, communications with
radios and dispatch personnel on the network is not possible.
CAUTION
Use the SOI mode only when absolutely necessary and only when its use is approved by
an OpenSky radio system network administrator and/or a scene commander.
SOI mode employs 2-slot TDMA technology that is not synchronized to the OpenSky
radio network. Therefore, a V-TAC and other radios operating in this mode may cause
undesirable interference to other nearby radios that are not connected to the V-TAC
Frequency selection is performed manually from a list of pre-defined channels using the V-TAC’s
“Vchan Menu.” The radio indicates the FCC channel number for each in addition to its alpha-numeric
identifier.
In SOI mode, the V-TAC supports the following features:
•
Talk group selection
•
Talk group scanning
•
Call preemption of the client radios (i.e., Scene Commander can preempt a call from a portable or
mobile radio)
In SOI, an emergency initiated at the V-TAC will preempt a client voice call.
6.34.4 Mobile-Only Mode (“Mobile”)
The Mobile-Only mode is user-selectable from the “Vmode Menu” or the radio can be configured to enter
this mode automatically. When utilized, portable radios (clients) cannot connect to the V-TAC. In this
mode, the V-TAC provides two-way communications and it acts like a standard M7200 mobile radio.
Refer to the following section for instructions on choosing this mode.
6.34.5 Manually Changing V-TAC Mode
CAUTION
When using either XCOV, XCOV-TG, or SOI mode, always observe and follow any
placarded/posted information pertaining to minimum required radio antenna-to-antenna
distance separations.
Use the following procedure to manually change between the Mobile-Only mode and one of the three (3)
V-TAC related modes:
1. Use button to scroll through the menu until “Vmode Menu” appears in the bottom line of the
display. The current mode appears in the top line (Mobile, XCOV, XCOV-TG or SOI).
2. Use to select another mode.
3. Press the Select button. A yes/no confirmation prompt appears.