Owner`s manual
20
Mode of Operation 6 provides time-division multiplexing. The internal
processor continuously scans all peripheral ports checking for
characters in the receive buffers. If a receive buffer contains
characters, this data is transmitted through the host port preceded by a
port identification code (the port select code followed by the peripheral
port number). Transmission continues until the buffer is empty or until
a user-defined data block length has been transmitted (8 to 240
characters). After transmission is completed, the Model 24H will
continue its scanning sequence.
NOTE: The host device may select and transmit data to any peripheral
port while simultaneously receiving data blocks from all peripheral
ports.
Upon power-up, all LEDs will illuminate while the unit goes through a
self-test. Upon completion of the power-up self-test, the LEDs for Port
1 (the host port) and Port 2 will illuminate indicating a connection
between the host port and Port 2.
While in operation mode, the LED indicators on the front panel show
which peripheral port the host port is currently connected to when
sending data from the host device to a specific peripheral device.
There should only be two LEDs illuminated at any given time during
operation, the host port LED (Port 1) and the currently selected
peripheral port. All ports are labeled by port number.
NOTE: When you access configuration mode (see
Section 6
), all red
LEDs on the front panel will illuminate.
If you notice more than two LEDs on the front panel illuminated after
initial power-up while in operation mode, please contact a BayTech
Applications Engineer (see
Section 8
).