User's Manual

2-18 July 23, 2002
General CreataLink2 XT Hardware Integrator’s Guide
Product Functionality
Product Functionality
The data transceiver relies on system software for basic operational instructions,
and on configuration parameter values to meet data transceiver and network
interface requirements.
Operating System
The data transceiver operating system is based on the FLEX Kernel operating
system. It can be reloaded or upgraded by the service center. For third-party
software developers, tools are available to load in main operating code.
Power-up Operating Mode
The data transceiver operates in one of two power-up modes, depending on the
condition of the supply voltage. If the supply voltage is not present, the data
transceiver does not power up. Minimize cable length to limit the voltage drop across
the cable during RF transmissions.
Supply Voltage At or Below Minimum Voltage
If the supply voltage level is less than or equal to 4V, the condition is detected and
the data transceiver does not power up.
If the supply voltage is greater than 4V, but less than 5V, the data transceiver
powers up but the performance will not be optimal. In this state, the data trans-
ceiver can still communicate with the resident host but:
• attempts to initiate messages are likely to fail.
• receive sensitivity is drastically affected.
• transmit power and the corresponding FCC spectral mask are degraded.
When the supply voltage rises above 5V, the data transceiver turns on and the unit
sucessfully enters the message-search mode.
Adequate Supply Voltage
A normal power-up occurs when the supply voltage is above 5V. The data transceiv-
er automatically enters the message-search mode.
Message-Search Operating Mode
The message-search mode is the data transceiver’s main operating mode. When it
powers up, the transceiver turns ON, and the unit begins to search for a valid
ReFLEX frame. When the unit detects what appears to be a valid ReFLEX frame,
it synchronizes with this channel and begins to decode the contents of the frame.
The unit then attempts to register with the network (if the auto-registration feature
is enabled). The default configuration is Registration Off (always considered regis
-
tered). After successful registration, the unit begins normal message decoding and
searches for its assigned ReFLEX address(es).
If the data transceiver does not detect a valid ReFLEX frame within approximately
1.5 minutes, the unit enters a low current consumption mode. This mode conserves
power for a pre-programmed length of time. When the time has elapsed, the unit
attempts, once again, to acquire a valid ReFLEX frame. The unit alternates between