Teletronics WINC2400C - Manual (Page 16)

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This value determines how long the link remains established without receiving the handshake control
packet.
(C) Change air Preamble pattern:
The WINC 2400C uses separate spreading code sequences for synchronization and communications.
The preamble is used for synchronization and consists of 16-code patterns, each 63 chips in length.
This selection allows one of those patterns to be chosen. Note that the system must be reset before a
new pattern takes effect and both the local and distant terminals must use the same code pattern.
(D) Change air Spreading Code pattern:
The spreading code used for communications can be either 11 chips or 31 chips in length. This
selection allows either one 11-chip code or one of nine 31-chip codes to be chosen. As above, the
system must be reset before this selection takes effect and the same code must be selected by both the
local and distant end. Please consult Teletronics before you intend to make the change.
5.3 Broadcast Configuration
Most of the configuration setting under the broadcast mode are similar to the synchronous mode. The
address configuration is the only difference comparing to the synchronous configuration.
In the broadcast mode, only one station can function as the master station. This master station will
perform the broadcast function sending messages it received from the synchronous device to the air.
The receivers are configured to be at slave mode and their master address in the configuration setting has
to be set to the master station’s address. Otherwise the slave station can not filter the transmitted
message from master station. This master address and broadcast address can be changed as shown under
item 5 below.
(1) Change SYNC speed:
This selection determines the data rate in Kbps of data entering and leaving the WINC 2400C over
the synchronous port. The data rate ranges from 9600 bps to 128 Kbps. Please note that once the
selection is made, it takes effect instantly. In addition, this selection is only valid when the WINC
2400C provides the clock, i.e., items 3 and 4 settings are at internal.
(2) Change interface type:
Three types of physical interfaces, RS-232, V.35, or RS-422, are available for synchronous
operation. This selection allows the user to choose from the list.
(3) Change Tx (Transmit) clock source:
This selection determines whether the WINC 2400C (considered the DCE) provides the transmit
clock (internal) to the DTE or receives the transmit clock (external) from the DTE . The choice of
internal is recommended.
(4) Change Rx (Receive) clock source:
This selection determines whether the WINC 2400C (considered the DCE) provides the receive clock
(internal) to the DTE or receives the receive clock (external) from the DTE. The choice of internal is
recommended.
(5) Broadcast Address / Change Master Address:
If this station is configured as master, this option will be marked as “Broadcast Address” and a
default address -- “9999999” will be assigned automatically after you select this option. Under the
slave configuration setting, “Change Master Address” will be listed as option and the master station