Trident Raider, Инструкция по установке и эксплуатации, Страница: 18 / 94

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Raider Installation and Operation Rev. 1.4.2
The AREA Bit
The Area Bit is set to 0 in the factory. When two separate systems have overlapping coverage with
identical frequencies (co-channeled) the Area Bit can make one system distinguishable from the
other. Set one system's Area Bit to 0 and the other system's Area Bit to 1. This prevents mobiles
homed to one system from accessing the neighboring system. Care should be taken to make sure
that all mobiles on each system have been programmed with the corresponding Area Bit.
AREA Switch "off" (UP) = 0
AREA Switch "on" (DOWN) = 1
Setting SYNC
Any ONE of the Raiders in the T-Net Data Bus, regardless of its position (1st, 2nd, 3rd, etc.) may
have sync enabled. The Raider that has sync enabled is automatically designated the "Network
Master". All other Raiders in the chain are referred to as Slave units. Sync must be enabled in one
unit (and only one unit) on the data bus in order for bus communications to function properly. These
operations include validation, logging interconnect airtime and allowing communications with the
Raiders via modem.
SYNC Switch "off" (UP) = use sync from data bus
SYNC Switch "on" (DOWN) = generates sync for T-NET data bus
BAUD Rate
The Raider's RS-232 port can communicate at two common speeds (baud rates) of 1200 or 2400
baud. The Network Master Raider baud rate should be set to the same rate as the modem that is
interfaced to that system. For example, when using the Trident Tuff-Modem (1200 or 2400 baud)
the Raider's BAUD switch should be set in the "on" (DOWN) position for 2400 baud if the Tuff-
Modem is set at 2400 baud.
BAUD Switch "off" (UP) = 1200 baud
BAUD Switch "on" (DOWN) = 2400 baud
LGC SQ
This switch holds the Logic Squelch open when turned "on" (DOWN), enabling carrier test signals
to be repeated.
TX TEST
This switch puts the channel into a busy test mode when turned "on" (DOWN). A 255 LTR Busy
ID is transmitted, which busies out the channel.