Bay Technical Associates 528H 用户手册
42
PROBLEM: CAN'T SELECT PERIPHERAL PORT FROM HOST
DEVICE
DEVICE
SYMPTOM: LEDs ON THE FRONT PANEL DO NOT
CHANGE WHEN SELECTING DIFFERENT PERIPHERAL
PORT.
CHANGE WHEN SELECTING DIFFERENT PERIPHERAL
PORT.
CAUSE: Cable.
SOLUTION: Verify that the Tx and Rx signals as well
SOLUTION: Verify that the Tx and Rx signals as well
the handshake signals for the host device are
connected to the correct signals on the H-Series
multiport. See
connected to the correct signals on the H-Series
multiport. See
Section 4.
CAUSE: Configuration problem.
SOLUTION: Check baud rate, word size, stop bits and
SOLUTION: Check baud rate, word size, stop bits and
parity on serial ports. Make sure the ports on the
H-Series multiport are configured to match the
serial port parameters of your equipment.
H-Series multiport are configured to match the
serial port parameters of your equipment.
CAUSE: Incorrect port selection sequence.
SOLUTION: Verify the selection sequence the host
SOLUTION: Verify the selection sequence the host
device is sending to select the desired peripheral
port. The selection sequence for the 525H,
528H, 529H, and the 5218H consists of the
control character followed by the desired
peripheral port number. This will a two-digit
number (01 to 17) for the 5218H.
port. The selection sequence for the 525H,
528H, 529H, and the 5218H consists of the
control character followed by the desired
peripheral port number. This will a two-digit
number (01 to 17) for the 5218H.