QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 104
CONFIGURATION
Communications - Serial
ACCESSING:
Serial
Communications
DESCRIPTION: This screen is used to set the Serial com-
munications parameters for Comm1, Comm2 and Comm 3.
The following setpoints are provided (these settings are
identical for Comm1, Comm2 and Comm3:
COMM1 (2 AND 3)
Status - Shows the current communications
status of the port. The possible messages are:
• Off - No communications are currently
taking place. NOTE: A delay of 15 sec-
onds or more of inactive communica-
tions (time between valid responses)
will cause this message to display.
• Active - Valid communications are ac-
tively occurring.
• Failed - An invalid command was re-
ceived by the port. This could be due
to a bad checksum value, a wiring is-
sue, or hardware problem at either the
transmitting (host) or receiving (Quan-
tum™ HD) end.
[Baud Rate] - The baud rate defi nes the speed
at which external communications can occur.
The higher the baud rate, the faster the commu-
nications. A pop-up menu is provided to select
from the following:
• 1200
• 2400
• 4800
• 9600
• 19200
• 38400
• 57600
• 115200
[Data Bits] - The number of bits in a transmitted
data package. A pop-up menu is provided:
• 7
• 8
[Stop Bits] - A bit(s) which signals the end of
a unit of transmission on a serial line. A pop-up
menu is provided to select from the following:
• 1
• 2
[Parity] - Parity checking refers to the use of
parity bits to check that data has been transmit-
ted accurately. The parity bit is added to every
data unit (typically seven or eight data bits) that
is transmitted. The parity bit for each unit is set
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