User's Manual

2-21 July 23, 2002
General CreataLink2 XT Hardware Integrator’s Guide
Product Functionality
Acknowledgment of Received Messages
System Acknowledge
The data transceiver transmits an Acknowledge Transmission signal (ACK) to
acknowledge automatically the receipt of a message. The data transceiver also
transmits a Negative Acknowledge Transmission signal (NAK) when messages are
not received correctly. If the data transceiver transmits a NAK, the system resends
the message.
Registration Request
Registration enables nationwide systems to track the data transceiver from region
to region. The system then transmits messages only to that region. The Enable Auto
Registration codeplug option enables automatic registration. The default registra-
tion is OFF, because it is considered always registered for fixed applications.
The data transceiver generates the registration request message and the registra-
tion request ALOHA packet with the current zone on the following occasions:
• A valid zone change: The data transceiver monitors the Zone ID field in the
ReFLEX frame header. When it recognizes that the frame header has changed,
the unit automatically sends a registration message after a delay.
• Power-Up: The data transceiver automatically transmits a registration request
only if automatic registration is enabled. Automatic registration is only
required if the application is mobile. SmartSynch, Inc. does not recommend
automatic registration for fixed location installations.
• A change from out-of-range to in-range: When the data transceiver goes out of
forward-channel range, and then returns within forward-channel range, the
data transceiver automatically transmits a registration request after a delay.
Configuration Parameters
Data transceiver configuration data is categorized as follows:
• The service provider establishes the network-specific parameters for the data
transceiver configuration. Typically, parameters are constant for all like
devices on the network. The parameters include the default channel list, roam-
ing parameters, and other service provider protocol-related parameters.
• Only the factory or authorized service depot sets fixed device-specific parame-
ters. These parameters indicate the type of radio installed, the type of data
transceiver, and the hardware revision level. Significant configuration items in
this category include the ESN, device type, hardware revision level, protocol
type, and low voltage thresholds.
PPS Utility
Product Family 91B Programming Software (PPS) is a configuration utility that
enables some codeplug options to be programmed into the data transceiver. This
application runs on a stand-alone PC with the Windows 95®, Windows 98®, or
Windows NT® operating environment. The PPS interacts with the data transceiver
via the serial port. Because the 22-pin connector that contains the serial I/O is not
standard, you must connect the DB9 connector on the interface kit or a custom cable
to the PC serial port. The Programming Software Guide-Integrators, listed in
"Related Publications", provides instructions for configuring data.